fix unit test

app/_simulate_tx_test.go

@@ -8,8 +8,8 @@ import (
 	"net/http/httptest"
 	"testing"
 
-	sdkmath "cosmossdk.io/math"
 	"github.com/0glabs/0g-chain/app"
+	"github.com/0glabs/0g-chain/chaincfg"
 
 	abci "github.com/cometbft/cometbft/abci/types"
 	tmbytes "github.com/cometbft/cometbft/libs/bytes"
@@ -62,11 +62,11 @@ func (suite *SimulateRequestTestSuite) TestSimulateRequest() {
 			bank.MsgSend{
 				FromAddress: fromAddr,
 				ToAddress:   toAddr,
-				Amount:      sdk.NewCoins(sdk.NewCoin("ua0gi", sdkmath.NewInt(1e6))),
+				Amount:      sdk.NewCoins(chaincfg.MakeCoinForAuxiliaryDenom(1e6)),
 			},
 		},
 		Fee: auth.StdFee{
-			Amount: sdk.NewCoins(sdk.NewCoin("ua0gi", sdkmath.NewInt(5e4))),
+			Amount: sdk.NewCoins(chaincfg.MakeCoinForAuxiliaryDenom(5e4)),
 			Gas:    1e6,
 		},
 		Memo: "test memo",

app/ante/ante_test.go

@@ -68,7 +68,7 @@ func TestAppAnteHandler_AuthorizedMempool(t *testing.T) {
 		chainID,
 		app.NewFundedGenStateWithSameCoins(
 			tApp.AppCodec(),
-			sdk.NewCoins(sdk.NewInt64Coin("ua0gi", 1e9)),
+			sdk.NewCoins(chaincfg.MakeCoinForAuxiliaryDenom(1e9)),
 			testAddresses,
 		),
 		newBep3GenStateMulti(tApp.AppCodec(), deputy),
@@ -116,7 +116,7 @@ func TestAppAnteHandler_AuthorizedMempool(t *testing.T) {
 					banktypes.NewMsgSend(
 						tc.address,
 						testAddresses[0],
-						sdk.NewCoins(sdk.NewInt64Coin("ua0gi", 1_000_000)),
+						sdk.NewCoins(chaincfg.MakeCoinForAuxiliaryDenom(1_000_000)),
 					),
 				},
 				sdk.NewCoins(), // no fee

app/ante/authorized_test.go

@@ -12,6 +12,7 @@ import (
 
 	"github.com/0glabs/0g-chain/app"
 	"github.com/0glabs/0g-chain/app/ante"
+	"github.com/0glabs/0g-chain/chaincfg"
 )
 
 var _ sdk.AnteHandler = (&MockAnteHandler{}).AnteHandle
@@ -45,7 +46,7 @@ func TestAuthenticatedMempoolDecorator_AnteHandle_NotCheckTx(t *testing.T) {
 			banktypes.NewMsgSend(
 				testAddresses[0],
 				testAddresses[1],
-				sdk.NewCoins(sdk.NewInt64Coin("ua0gi", 100_000_000)),
+				sdk.NewCoins(chaincfg.MakeCoinForAuxiliaryDenom(100_000_000)),
 			),
 		},
 		sdk.NewCoins(), // no fee
@@ -80,12 +81,12 @@ func TestAuthenticatedMempoolDecorator_AnteHandle_Pass(t *testing.T) {
 			banktypes.NewMsgSend(
 				testAddresses[0],
 				testAddresses[1],
-				sdk.NewCoins(sdk.NewInt64Coin("ua0gi", 100)),
+				sdk.NewCoins(chaincfg.MakeCoinForAuxiliaryDenom(100)),
 			),
 			banktypes.NewMsgSend(
 				testAddresses[2],
 				testAddresses[1],
-				sdk.NewCoins(sdk.NewInt64Coin("ua0gi", 100)),
+				sdk.NewCoins(chaincfg.MakeCoinForAuxiliaryDenom(100)),
 			),
 		},
 		sdk.NewCoins(), // no fee
@@ -121,7 +122,7 @@ func TestAuthenticatedMempoolDecorator_AnteHandle_Reject(t *testing.T) {
 			banktypes.NewMsgSend(
 				testAddresses[0],
 				testAddresses[1],
-				sdk.NewCoins(sdk.NewInt64Coin("ua0gi", 100)),
+				sdk.NewCoins(chaincfg.MakeCoinForAuxiliaryDenom(100)),
 			),
 		},
 		sdk.NewCoins(), // no fee

app/ante/authz_test.go

@@ -16,6 +16,7 @@ import (
 
 	"github.com/0glabs/0g-chain/app"
 	"github.com/0glabs/0g-chain/app/ante"
+	"github.com/0glabs/0g-chain/chaincfg"
 )
 
 func newMsgGrant(granter sdk.AccAddress, grantee sdk.AccAddress, a authz.Authorization, expiration time.Time) *authz.MsgGrant {
@@ -58,7 +59,7 @@ func TestAuthzLimiterDecorator(t *testing.T) {
 				banktypes.NewMsgSend(
 					testAddresses[0],
 					testAddresses[1],
-					sdk.NewCoins(sdk.NewInt64Coin("ua0gi", 100e6)),
+					sdk.NewCoins(chaincfg.MakeCoinForAuxiliaryDenom(100e6)),
 				),
 			},
 			checkTx: false,
@@ -128,7 +129,7 @@ func TestAuthzLimiterDecorator(t *testing.T) {
 					[]sdk.Msg{banktypes.NewMsgSend(
 						testAddresses[0],
 						testAddresses[3],
-						sdk.NewCoins(sdk.NewInt64Coin("ua0gi", 100e6)),
+						sdk.NewCoins(chaincfg.MakeCoinForAuxiliaryDenom(100e6)),
 					)}),
 			},
 			checkTx: false,
@@ -161,7 +162,7 @@ func TestAuthzLimiterDecorator(t *testing.T) {
 						banktypes.NewMsgSend(
 							testAddresses[0],
 							testAddresses[3],
-							sdk.NewCoins(sdk.NewInt64Coin("ua0gi", 100e6)),
+							sdk.NewCoins(chaincfg.MakeCoinForAuxiliaryDenom(100e6)),
 						),
 						&evmtypes.MsgEthereumTx{},
 					},

app/ante/eip712_test.go

@@ -34,6 +34,7 @@ import (
 	"github.com/stretchr/testify/suite"
 
 	"github.com/0glabs/0g-chain/app"
+	"github.com/0glabs/0g-chain/chaincfg"
 	evmutilkeeper "github.com/0glabs/0g-chain/x/evmutil/keeper"
 	evmutiltestutil "github.com/0glabs/0g-chain/x/evmutil/testutil"
 	evmutiltypes "github.com/0glabs/0g-chain/x/evmutil/types"
@@ -156,7 +157,7 @@ func (suite *EIP712TestSuite) SetupTest() {
 	// Genesis states
 	evmGs := evmtypes.NewGenesisState(
 		evmtypes.NewParams(
-			"neuron",                      // evmDenom
+			chaincfg.BaseDenom,            // evmDenom
 			false,                         // allowedUnprotectedTxs
 			true,                          // enableCreate
 			true,                          // enableCall
@@ -222,10 +223,10 @@ func (suite *EIP712TestSuite) SetupTest() {
 		pricefeedtypes.ModuleName: cdc.MustMarshalJSON(&pricefeedGenState),
 	}
 
-	// funds our test accounts with some ua0gi
+	// funds our test accounts with some auxiliary denom
 	coinsGenState := app.NewFundedGenStateWithSameCoins(
 		tApp.AppCodec(),
-		sdk.NewCoins(sdk.NewInt64Coin("ua0gi", 1e9)),
+		sdk.NewCoins(chaincfg.MakeCoinForAuxiliaryDenom(1e9)),
 		[]sdk.AccAddress{suite.testAddr, suite.testAddr2},
 	)
 
@@ -312,17 +313,17 @@ func (suite *EIP712TestSuite) SetupTest() {
 	params := evmKeeper.GetParams(suite.ctx)
 	params.EIP712AllowedMsgs = []evmtypes.EIP712AllowedMsg{
 		{
-			MsgTypeUrl:       "/0g-chain.evmutil.v1beta1.MsgConvertERC20ToCoin",
+			MsgTypeUrl:       "/zgc.evmutil.v1beta1.MsgConvertERC20ToCoin",
 			MsgValueTypeName: "MsgValueEVMConvertERC20ToCoin",
 			ValueTypes: []evmtypes.EIP712MsgAttrType{
 				{Name: "initiator", Type: "string"},
 				{Name: "receiver", Type: "string"},
-				{Name: "0gchain_erc20_address", Type: "string"},
+				{Name: "zgchain_erc20_address", Type: "string"},
 				{Name: "amount", Type: "string"},
 			},
 		},
 		{
-			MsgTypeUrl:       "/0g-chain.evmutil.v1beta1.MsgConvertCoinToERC20",
+			MsgTypeUrl:       "/zgc.evmutil.v1beta1.MsgConvertCoinToERC20",
 			MsgValueTypeName: "MsgValueEVMConvertCoinToERC20",
 			ValueTypes: []evmtypes.EIP712MsgAttrType{
 				{Name: "initiator", Type: "string"},
@@ -375,7 +376,7 @@ func (suite *EIP712TestSuite) deployUSDCERC20(app app.TestApp, ctx sdk.Context)
 	suite.tApp.FundModuleAccount(
 		suite.ctx,
 		evmutiltypes.ModuleName,
-		sdk.NewCoins(sdk.NewCoin("ua0gi", sdkmath.NewInt(0))),
+		sdk.NewCoins(chaincfg.MakeCoinForAuxiliaryDenom(0)),
 	)
 
 	contractAddr, err := suite.evmutilKeeper.DeployTestMintableERC20Contract(suite.ctx, "USDC", "USDC", uint8(18))
@@ -475,7 +476,7 @@ func (suite *EIP712TestSuite) TestEIP712Tx() {
 			errMsg:         "insufficient funds",
 			updateTx: func(txBuilder client.TxBuilder, msgs []sdk.Msg) client.TxBuilder {
 				bk := suite.tApp.GetBankKeeper()
-				gasCoins := bk.GetBalance(suite.ctx, suite.testAddr, "ua0gi")
+				gasCoins := bk.GetBalance(suite.ctx, suite.testAddr, chaincfg.AuxiliaryDenom)
 				suite.tApp.GetBankKeeper().SendCoins(suite.ctx, suite.testAddr, suite.testAddr2, sdk.NewCoins(gasCoins))
 				return txBuilder
 			},
@@ -487,7 +488,7 @@ func (suite *EIP712TestSuite) TestEIP712Tx() {
 			failCheckTx:    true,
 			errMsg:         "invalid chain-id",
 			updateTx: func(txBuilder client.TxBuilder, msgs []sdk.Msg) client.TxBuilder {
-				gasAmt := sdk.NewCoins(sdk.NewCoin("ua0gi", sdkmath.NewInt(20)))
+				gasAmt := sdk.NewCoins(chaincfg.MakeCoinForAuxiliaryDenom(20))
 				return suite.createTestEIP712CosmosTxBuilder(
 					suite.testAddr, suite.testPrivKey, "kavatest_12-1", uint64(sims.DefaultGenTxGas*10), gasAmt, msgs,
 				)
@@ -500,7 +501,7 @@ func (suite *EIP712TestSuite) TestEIP712Tx() {
 			failCheckTx:    true,
 			errMsg:         "invalid pubkey",
 			updateTx: func(txBuilder client.TxBuilder, msgs []sdk.Msg) client.TxBuilder {
-				gasAmt := sdk.NewCoins(sdk.NewCoin("ua0gi", sdkmath.NewInt(20)))
+				gasAmt := sdk.NewCoins(chaincfg.MakeCoinForAuxiliaryDenom(20))
 				return suite.createTestEIP712CosmosTxBuilder(
 					suite.testAddr2, suite.testPrivKey2, ChainID, uint64(sims.DefaultGenTxGas*10), gasAmt, msgs,
 				)
@@ -528,7 +529,7 @@ func (suite *EIP712TestSuite) TestEIP712Tx() {
 				msgs = tc.updateMsgs(msgs)
 			}
 
-			gasAmt := sdk.NewCoins(sdk.NewCoin("ua0gi", sdkmath.NewInt(20)))
+			gasAmt := sdk.NewCoins(chaincfg.MakeCoinForAuxiliaryDenom(20))
 			txBuilder := suite.createTestEIP712CosmosTxBuilder(
 				suite.testAddr, suite.testPrivKey, ChainID, uint64(sims.DefaultGenTxGas*10), gasAmt, msgs,
 			)
@@ -602,7 +603,7 @@ func (suite *EIP712TestSuite) TestEIP712Tx_DepositAndWithdraw() {
 	}
 
 	// deliver deposit msg
-	gasAmt := sdk.NewCoins(sdk.NewCoin("ua0gi", sdkmath.NewInt(20)))
+	gasAmt := sdk.NewCoins(chaincfg.MakeCoinForAuxiliaryDenom(20))
 	txBuilder := suite.createTestEIP712CosmosTxBuilder(
 		suite.testAddr, suite.testPrivKey, ChainID, uint64(sims.DefaultGenTxGas*10), gasAmt, depositMsgs,
 	)

app/ante/min_gas_filter_test.go

@@ -13,6 +13,7 @@ import (
 
 	"github.com/0glabs/0g-chain/app"
 	"github.com/0glabs/0g-chain/app/ante"
+	"github.com/0glabs/0g-chain/chaincfg"
 )
 
 func mustParseDecCoins(value string) sdk.DecCoins {
@@ -30,7 +31,7 @@ func TestEvmMinGasFilter(t *testing.T) {
 
 	ctx := tApp.NewContext(true, tmproto.Header{Height: 1, Time: tmtime.Now()})
 	tApp.GetEvmKeeper().SetParams(ctx, evmtypes.Params{
-		EvmDenom: "neuron",
+		EvmDenom: chaincfg.BaseDenom,
 	})
 
 	testCases := []struct {

app/ante/vesting_test.go

@@ -14,6 +14,7 @@ import (
 
 	"github.com/0glabs/0g-chain/app"
 	"github.com/0glabs/0g-chain/app/ante"
+	"github.com/0glabs/0g-chain/chaincfg"
 )
 
 func TestVestingMempoolDecorator_MsgCreateVestingAccount_Unauthorized(t *testing.T) {
@@ -33,7 +34,7 @@ func TestVestingMempoolDecorator_MsgCreateVestingAccount_Unauthorized(t *testing
 			"MsgCreateVestingAccount",
 			vesting.NewMsgCreateVestingAccount(
 				testAddresses[0], testAddresses[1],
-				sdk.NewCoins(sdk.NewInt64Coin("ua0gi", 100)),
+				sdk.NewCoins(chaincfg.MakeCoinForAuxiliaryDenom(100)),
 				time.Date(1998, 1, 1, 0, 0, 0, 0, time.UTC).Unix(),
 				false,
 			),
@@ -44,7 +45,7 @@ func TestVestingMempoolDecorator_MsgCreateVestingAccount_Unauthorized(t *testing
 			"MsgCreateVestingAccount",
 			vesting.NewMsgCreatePermanentLockedAccount(
 				testAddresses[0], testAddresses[1],
-				sdk.NewCoins(sdk.NewInt64Coin("ua0gi", 100)),
+				sdk.NewCoins(chaincfg.MakeCoinForAuxiliaryDenom(100)),
 			),
 			true,
 			"MsgTypeURL /cosmos.vesting.v1beta1.MsgCreatePermanentLockedAccount not supported",
@@ -63,7 +64,7 @@ func TestVestingMempoolDecorator_MsgCreateVestingAccount_Unauthorized(t *testing
 			"other messages not affected",
 			banktypes.NewMsgSend(
 				testAddresses[0], testAddresses[1],
-				sdk.NewCoins(sdk.NewInt64Coin("ua0gi", 100)),
+				sdk.NewCoins(chaincfg.MakeCoinForAuxiliaryDenom(100)),
 			),
 			false,
 			"",

app/test_common.go

@@ -153,7 +153,7 @@ func GenesisStateWithSingleValidator(
 	balances := []banktypes.Balance{
 		{
 			Address: acc.GetAddress().String(),
-			Coins:   sdk.NewCoins(sdk.NewCoin("ua0gi", sdkmath.NewInt(100000000000000))),
+			Coins:   sdk.NewCoins(chaincfg.MakeCoinForAuxiliaryDenom(100000000000000)),
 		},
 	}
 
@@ -216,7 +216,7 @@ func genesisStateWithValSet(
 	}
 	// set validators and delegations
 	currentStakingGenesis := stakingtypes.GetGenesisStateFromAppState(app.appCodec, genesisState)
-	currentStakingGenesis.Params.BondDenom = "ua0gi"
+	currentStakingGenesis.Params.BondDenom = chaincfg.AuxiliaryDenom // TODO:
 
 	stakingGenesis := stakingtypes.NewGenesisState(
 		currentStakingGenesis.Params,
@@ -236,13 +236,13 @@ func genesisStateWithValSet(
 
 	for range delegations {
 		// add delegated tokens to total supply
-		totalSupply = totalSupply.Add(sdk.NewCoin("ua0gi", bondAmt))
+		totalSupply = totalSupply.Add(chaincfg.MakeCoinForAuxiliaryDenom(bondAmt))
 	}
 
 	// add bonded amount to bonded pool module account
 	balances = append(balances, banktypes.Balance{
 		Address: authtypes.NewModuleAddress(stakingtypes.BondedPoolName).String(),
-		Coins:   sdk.Coins{sdk.NewCoin("ua0gi", bondAmt)},
+		Coins:   sdk.Coins{chaincfg.MakeCoinForAuxiliaryDenom(bondAmt)},
 	})
 
 	bankGenesis := banktypes.NewGenesisState(

chaincfg/coin_helper.go

@@ -0,0 +1,57 @@
+package chaincfg
+
+import (
+	"fmt"
+	"math/big"
+
+	"cosmossdk.io/math"
+	sdk "github.com/cosmos/cosmos-sdk/types"
+	"github.com/shopspring/decimal"
+)
+
+func toBigInt(amount any) *big.Int {
+	if amount == nil {
+		return big.NewInt(0)
+	}
+	var val *big.Int
+	switch amount.(type) {
+	case int:
+		val = big.NewInt(int64(amount.(int)))
+	case int32:
+		val = big.NewInt(int64(amount.(int32)))
+	case int64:
+		val = big.NewInt(amount.(int64))
+	case string:
+		var ok bool
+		val, ok = new(big.Int).SetString(amount.(string), 0)
+		if !ok {
+			panic(fmt.Sprintf("invalid amount string: %s", amount.(string)))
+		}
+	case math.Int:
+		val = amount.(math.Int).BigInt()
+	case *big.Int:
+		val = amount.(*big.Int)
+	case float64:
+		val = decimal.NewFromFloat(amount.(float64)).BigInt()
+	default:
+		panic(fmt.Sprintf("invalid amount type: %T", amount))
+	}
+
+	return val
+}
+
+func MakeCoinForStandardDenom(amount any) sdk.Coin {
+	return makeCoin(StandardDenom, toBigInt(amount))
+}
+
+func MakeCoinForAuxiliaryDenom(amount any) sdk.Coin {
+	return makeCoin(AuxiliaryDenom, toBigInt(amount))
+}
+
+func MakeCoinForBaseDenom(amount any) sdk.Coin {
+	return makeCoin(BaseDenom, toBigInt(amount))
+}
+
+func makeCoin(denom string, amount *big.Int) sdk.Coin {
+	return sdk.NewCoin(denom, math.NewIntFromBigInt(amount))
+}

chaincfg/denoms.go

@@ -0,0 +1,37 @@
+package chaincfg
+
+import (
+	sdk "github.com/cosmos/cosmos-sdk/types"
+)
+
+const (
+	StandardDenom = "a0gi"
+
+	AuxiliaryDenom = "ua0gi"
+
+	BaseDenom = "neuron"
+
+	BondDenom = BaseDenom
+
+	AuxiliaryDenomUnit = 6
+
+	BaseDenomUnit = 18
+
+	AuxiliaryDenomConversionMultiplier = 1e12
+	BaseDenomConversionMultiplier      = 1e18
+)
+
+// RegisterDenoms registers the base and auxiliary denominations to the SDK.
+func RegisterDenoms() {
+	if err := sdk.RegisterDenom(StandardDenom, sdk.OneDec()); err != nil {
+		panic(err)
+	}
+
+	if err := sdk.RegisterDenom(AuxiliaryDenom, sdk.NewDecWithPrec(1, AuxiliaryDenomUnit)); err != nil {
+		panic(err)
+	}
+
+	if err := sdk.RegisterDenom(BaseDenom, sdk.NewDecWithPrec(1, BaseDenomUnit)); err != nil {
+		panic(err)
+	}
+}

chaincfg/denoms_test.go

@@ -0,0 +1,80 @@
+package chaincfg
+
+import (
+	"testing"
+
+	sdk "github.com/cosmos/cosmos-sdk/types"
+	"github.com/stretchr/testify/assert"
+)
+
+func TestRegisterDenoms(t *testing.T) {
+	RegisterDenoms()
+	tests := []struct {
+		name        string
+		from        sdk.Coin
+		targetDenom string
+		expCoin     sdk.Coin
+		expErr      error
+	}{
+		{
+			"standard to auxiliary",
+			MakeCoinForStandardDenom(99),
+			AuxiliaryDenom,
+			MakeCoinForAuxiliaryDenom(99 * (BaseDenomConversionMultiplier / AuxiliaryDenomConversionMultiplier)),
+			nil,
+		},
+		{
+			"auxiliary to standard",
+			MakeCoinForAuxiliaryDenom(5e7),
+			StandardDenom,
+			MakeCoinForStandardDenom(50),
+			nil,
+		},
+		{
+			"standard to base",
+			MakeCoinForStandardDenom(22),
+			BaseDenom,
+			MakeCoinForBaseDenom(22 * BaseDenomConversionMultiplier),
+			nil,
+		},
+		{
+			"base to standard",
+			MakeCoinForBaseDenom("97000000000000000000"),
+			StandardDenom,
+			MakeCoinForStandardDenom(97),
+			nil,
+		},
+		{
+			"auxiliary to base",
+			MakeCoinForAuxiliaryDenom(33),
+			BaseDenom,
+			MakeCoinForBaseDenom(33 * AuxiliaryDenomConversionMultiplier),
+			nil,
+		},
+		{
+			"base to auxiliary",
+			MakeCoinForBaseDenom("770000000000000"),
+			AuxiliaryDenom,
+			MakeCoinForAuxiliaryDenom(770000000000000 / AuxiliaryDenomConversionMultiplier),
+			nil,
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			ret, err := sdk.ConvertCoin(tt.from, tt.targetDenom)
+			if tt.expErr != nil {
+				if err == nil {
+					t.Errorf("expErr is not nil, but got nil")
+					return
+				}
+			} else {
+				if err != nil {
+					t.Errorf("expErr is nil, but got %v", err)
+					return
+				}
+			}
+
+			assert.Equal(t, tt.expCoin, ret)
+		})
+	}
+}

cli_test/cli_test.go

@@ -73,7 +73,7 @@ func TestKvCLIKeysAddRecover(t *testing.T) {
 	f.Cleanup()
 }
 
-func TestKavaCLIKeysAddRecoverHDPath(t *testing.T) {
+func TestZgChainCLIKeysAddRecoverHDPath(t *testing.T) {
 	t.Parallel()
 	f := InitFixtures(t)
 

cmd/0gchaind/root.go

@@ -81,7 +81,7 @@ func NewRootCmd() *cobra.Command {
 				return err
 			}
 
-			customAppTemplate, customAppConfig := servercfg.AppConfig("ua0gi")
+			customAppTemplate, customAppConfig := servercfg.AppConfig(chaincfg.AuxiliaryDenom)
 
 			return server.InterceptConfigsPreRunHandler(
 				cmd,

go.mod

@@ -162,6 +162,7 @@ require (
 	github.com/klauspost/compress v1.15.15 // indirect
 	github.com/lib/pq v1.10.7 // indirect
 	github.com/libp2p/go-buffer-pool v0.1.0 // indirect
+	github.com/lukehoban/go-outline v0.0.0-20161011150102-e78556874252 // indirect
 	github.com/magiconair/properties v1.8.7 // indirect
 	github.com/manifoldco/promptui v0.9.0 // indirect
 	github.com/mattn/go-colorable v0.1.13 // indirect
@@ -194,6 +195,8 @@ require (
 	github.com/russross/blackfriday/v2 v2.1.0 // indirect
 	github.com/sasha-s/go-deadlock v0.3.1 // indirect
 	github.com/shirou/gopsutil v3.21.4-0.20210419000835-c7a38de76ee5+incompatible // indirect
+	github.com/shopspring/decimal v1.4.0 // indirect
+	github.com/spf13/afero v1.9.3 // indirect
 	github.com/spf13/jwalterweatherman v1.1.0 // indirect
 	github.com/sagikazarmark/locafero v0.4.0 // indirect
 	github.com/sagikazarmark/slog-shim v0.1.0 // indirect

go.sum

@@ -944,6 +944,8 @@ github.com/lightstep/lightstep-tracer-go v0.18.1/go.mod h1:jlF1pusYV4pidLvZ+XD0U
 github.com/linxGnu/grocksdb v1.8.6 h1:O7I6SIGPrypf3f/gmrrLUBQDKfO8uOoYdWf4gLS06tc=
 github.com/linxGnu/grocksdb v1.8.6/go.mod h1:xZCIb5Muw+nhbDK4Y5UJuOrin5MceOuiXkVUR7vp4WY=
 github.com/lucasjones/reggen v0.0.0-20180717132126-cdb49ff09d77/go.mod h1:5ELEyG+X8f+meRWHuqUOewBOhvHkl7M76pdGEansxW4=
+github.com/lukehoban/go-outline v0.0.0-20161011150102-e78556874252 h1:D2VNityLQ1srKF+MSllSGQ4NwMci20llMkvVAmU2aCk=
+github.com/lukehoban/go-outline v0.0.0-20161011150102-e78556874252/go.mod h1:O9bIJ6BRFBmP3AKTW8cqESVbauSmifSrRB/n9zq6x9Q=
 github.com/lyft/protoc-gen-validate v0.0.13/go.mod h1:XbGvPuh87YZc5TdIa2/I4pLk0QoUACkjt2znoq26NVQ=
 github.com/magiconair/properties v1.8.0/go.mod h1:PppfXfuXeibc/6YijjN8zIbojt8czPbwD3XqdrwzmxQ=
 github.com/magiconair/properties v1.8.7 h1:IeQXZAiQcpL9mgcAe1Nu6cX9LLw6ExEHKjN0VQdvPDY=
@@ -1181,6 +1183,8 @@ github.com/segmentio/kafka-go v0.2.0/go.mod h1:X6itGqS9L4jDletMsxZ7Dz+JFWxM6JHfP
 github.com/sergi/go-diff v1.0.0/go.mod h1:0CfEIISq7TuYL3j771MWULgwwjU+GofnZX9QAmXWZgo=
 github.com/shirou/gopsutil v3.21.4-0.20210419000835-c7a38de76ee5+incompatible h1:Bn1aCHHRnjv4Bl16T8rcaFjYSrGrIZvpiGO6P3Q4GpU=
 github.com/shirou/gopsutil v3.21.4-0.20210419000835-c7a38de76ee5+incompatible/go.mod h1:5b4v6he4MtMOwMlS0TUMTu2PcXUg8+E1lC7eC3UO/RA=
+github.com/shopspring/decimal v1.4.0 h1:bxl37RwXBklmTi0C79JfXCEBD1cqqHt0bbgBAGFp81k=
+github.com/shopspring/decimal v1.4.0/go.mod h1:gawqmDU56v4yIKSwfBSFip1HdCCXN8/+DMd9qYNcwME=
 github.com/shurcooL/sanitized_anchor_name v1.0.0/go.mod h1:1NzhyTcUVG4SuEtjjoZeVRXNmyL/1OwPU0+IJeTBvfc=
 github.com/sirupsen/logrus v1.2.0/go.mod h1:LxeOpSwHxABJmUn/MG1IvRgCAasNZTLOkJPxbbu5VWo=
 github.com/sirupsen/logrus v1.4.2/go.mod h1:tLMulIdttU9McNUspp0xgXVQah82FyeX6MwdIuYE2rE=

migrate/utils/periodic_vesting_reset_test.go

@@ -5,6 +5,7 @@ import (
 	"time"
 
 	sdkmath "cosmossdk.io/math"
+	"github.com/0glabs/0g-chain/chaincfg"
 	"github.com/cosmos/cosmos-sdk/crypto/keys/secp256k1"
 	sdk "github.com/cosmos/cosmos-sdk/types"
 	authtypes "github.com/cosmos/cosmos-sdk/x/auth/types"
@@ -41,7 +42,7 @@ func TestResetPeriodVestingAccount_NoVestingPeriods(t *testing.T) {
 }
 
 func TestResetPeriodVestingAccount_SingleVestingPeriod_Vested(t *testing.T) {
-	balance := sdk.NewCoins(sdk.NewCoin("ua0gi", sdkmath.NewInt(1e6)))
+	balance := sdk.NewCoins(sdk.NewCoin(chaincfg.AuxiliaryDenom, sdkmath.NewInt(1e6)))
 	vestingStartTime := time.Now().Add(-30 * 24 * time.Hour) // 30 days in past
 
 	periods := vestingtypes.Periods{
@@ -64,7 +65,7 @@ func TestResetPeriodVestingAccount_SingleVestingPeriod_Vested(t *testing.T) {
 }
 
 func TestResetPeriodVestingAccount_SingleVestingPeriod_Vesting(t *testing.T) {
-	balance := sdk.NewCoins(sdk.NewCoin("ua0gi", sdkmath.NewInt(1e6)))
+	balance := sdk.NewCoins(sdk.NewCoin(chaincfg.AuxiliaryDenom, sdkmath.NewInt(1e6)))
 	vestingStartTime := time.Now().Add(-30 * 24 * time.Hour) // 30 days in past
 
 	periods := vestingtypes.Periods{
@@ -97,7 +98,7 @@ func TestResetPeriodVestingAccount_SingleVestingPeriod_Vesting(t *testing.T) {
 }
 
 func TestResetPeriodVestingAccount_SingleVestingPeriod_ExactStartTime(t *testing.T) {
-	balance := sdk.NewCoins(sdk.NewCoin("ua0gi", sdkmath.NewInt(1e6)))
+	balance := sdk.NewCoins(sdk.NewCoin(chaincfg.AuxiliaryDenom, sdkmath.NewInt(1e6)))
 	vestingStartTime := time.Now().Add(-30 * 24 * time.Hour) // 30 days in past
 
 	periods := vestingtypes.Periods{
@@ -125,25 +126,25 @@ func TestResetPeriodVestingAccount_SingleVestingPeriod_ExactStartTime(t *testing
 }
 
 func TestResetPeriodVestingAccount_MultiplePeriods(t *testing.T) {
-	balance := sdk.NewCoins(sdk.NewCoin("ua0gi", sdkmath.NewInt(4e6)))
+	balance := sdk.NewCoins(sdk.NewCoin(chaincfg.AuxiliaryDenom, sdkmath.NewInt(4e6)))
 	vestingStartTime := time.Now().Add(-30 * 24 * time.Hour) // 30 days in past
 
 	periods := vestingtypes.Periods{
 		vestingtypes.Period{
 			Length: 15 * 24 * 60 * 60, // -15 days - vested
-			Amount: sdk.NewCoins(sdk.NewCoin("ua0gi", sdkmath.NewInt(1e6))),
+			Amount: sdk.NewCoins(sdk.NewCoin(chaincfg.AuxiliaryDenom, sdkmath.NewInt(1e6))),
 		},
 		vestingtypes.Period{
 			Length: 15 * 24 * 60 * 60, // 0 days - exact on the start time
-			Amount: sdk.NewCoins(sdk.NewCoin("ua0gi", sdkmath.NewInt(1e6))),
+			Amount: sdk.NewCoins(sdk.NewCoin(chaincfg.AuxiliaryDenom, sdkmath.NewInt(1e6))),
 		},
 		vestingtypes.Period{
 			Length: 15 * 24 * 60 * 60, // +15 days - vesting
-			Amount: sdk.NewCoins(sdk.NewCoin("ua0gi", sdkmath.NewInt(1e6))),
+			Amount: sdk.NewCoins(sdk.NewCoin(chaincfg.AuxiliaryDenom, sdkmath.NewInt(1e6))),
 		},
 		vestingtypes.Period{
 			Length: 15 * 24 * 60 * 60, // +30 days - vesting
-			Amount: sdk.NewCoins(sdk.NewCoin("ua0gi", sdkmath.NewInt(1e6))),
+			Amount: sdk.NewCoins(sdk.NewCoin(chaincfg.AuxiliaryDenom, sdkmath.NewInt(1e6))),
 		},
 	}
 
@@ -159,36 +160,36 @@ func TestResetPeriodVestingAccount_MultiplePeriods(t *testing.T) {
 	expectedPeriods := []vestingtypes.Period{
 		{
 			Length: 15 * 24 * 60 * 60, // 15 days
-			Amount: sdk.NewCoins(sdk.NewCoin("ua0gi", sdkmath.NewInt(1e6))),
+			Amount: sdk.NewCoins(sdk.NewCoin(chaincfg.AuxiliaryDenom, sdkmath.NewInt(1e6))),
 		},
 		{
 			Length: 15 * 24 * 60 * 60, // 15 days
-			Amount: sdk.NewCoins(sdk.NewCoin("ua0gi", sdkmath.NewInt(1e6))),
+			Amount: sdk.NewCoins(sdk.NewCoin(chaincfg.AuxiliaryDenom, sdkmath.NewInt(1e6))),
 		},
 	}
 
-	assert.Equal(t, sdk.NewCoins(sdk.NewCoin("ua0gi", sdkmath.NewInt(2e6))), vacc.OriginalVesting, "expected original vesting to be updated")
+	assert.Equal(t, sdk.NewCoins(sdk.NewCoin(chaincfg.AuxiliaryDenom, sdkmath.NewInt(2e6))), vacc.OriginalVesting, "expected original vesting to be updated")
 	assert.Equal(t, newVestingStartTime.Unix(), vacc.StartTime, "expected vesting start time to be updated")
 	assert.Equal(t, expectedEndtime, vacc.EndTime, "expected vesting end time end at last period")
 	assert.Equal(t, expectedPeriods, vacc.VestingPeriods, "expected vesting periods to be updated")
 }
 
 func TestResetPeriodVestingAccount_DelegatedVesting_GreaterThanVesting(t *testing.T) {
-	balance := sdk.NewCoins(sdk.NewCoin("ua0gi", sdkmath.NewInt(3e6)))
+	balance := sdk.NewCoins(sdk.NewCoin(chaincfg.AuxiliaryDenom, sdkmath.NewInt(3e6)))
 	vestingStartTime := time.Now().Add(-30 * 24 * time.Hour) // 30 days in past
 
 	periods := vestingtypes.Periods{
 		vestingtypes.Period{
 			Length: 15 * 24 * 60 * 60, // -15 days - vested
-			Amount: sdk.NewCoins(sdk.NewCoin("ua0gi", sdkmath.NewInt(1e6))),
+			Amount: sdk.NewCoins(sdk.NewCoin(chaincfg.AuxiliaryDenom, sdkmath.NewInt(1e6))),
 		},
 		vestingtypes.Period{
 			Length: 15 * 24 * 60 * 60, // 0 days - exact on the start time
-			Amount: sdk.NewCoins(sdk.NewCoin("ua0gi", sdkmath.NewInt(1e6))),
+			Amount: sdk.NewCoins(sdk.NewCoin(chaincfg.AuxiliaryDenom, sdkmath.NewInt(1e6))),
 		},
 		vestingtypes.Period{
 			Length: 15 * 24 * 60 * 60, // +15 days - vesting
-			Amount: sdk.NewCoins(sdk.NewCoin("ua0gi", sdkmath.NewInt(1e6))),
+			Amount: sdk.NewCoins(sdk.NewCoin(chaincfg.AuxiliaryDenom, sdkmath.NewInt(1e6))),
 		},
 	}
 
@@ -198,35 +199,35 @@ func TestResetPeriodVestingAccount_DelegatedVesting_GreaterThanVesting(t *testin
 	newVestingStartTime := vestingStartTime.Add(30 * 24 * time.Hour)
 	ResetPeriodicVestingAccount(vacc, newVestingStartTime)
 
-	assert.Equal(t, sdk.NewCoins(sdk.NewCoin("ua0gi", sdkmath.NewInt(2e6))), vacc.DelegatedFree, "expected delegated free to be updated")
+	assert.Equal(t, sdk.NewCoins(sdk.NewCoin(chaincfg.AuxiliaryDenom, sdkmath.NewInt(2e6))), vacc.DelegatedFree, "expected delegated free to be updated")
-	assert.Equal(t, sdk.NewCoins(sdk.NewCoin("ua0gi", sdkmath.NewInt(1e6))), vacc.DelegatedVesting, "expected delegated vesting to be updated")
+	assert.Equal(t, sdk.NewCoins(sdk.NewCoin(chaincfg.AuxiliaryDenom, sdkmath.NewInt(1e6))), vacc.DelegatedVesting, "expected delegated vesting to be updated")
 }
 
 func TestResetPeriodVestingAccount_DelegatedVesting_LessThanVested(t *testing.T) {
-	balance := sdk.NewCoins(sdk.NewCoin("ua0gi", sdkmath.NewInt(3e6)))
+	balance := sdk.NewCoins(sdk.NewCoin(chaincfg.AuxiliaryDenom, sdkmath.NewInt(3e6)))
 	vestingStartTime := time.Now().Add(-30 * 24 * time.Hour) // 30 days in past
 
 	periods := vestingtypes.Periods{
 		vestingtypes.Period{
 			Length: 15 * 24 * 60 * 60, // -15 days - vested
-			Amount: sdk.NewCoins(sdk.NewCoin("ua0gi", sdkmath.NewInt(1e6))),
+			Amount: sdk.NewCoins(sdk.NewCoin(chaincfg.AuxiliaryDenom, sdkmath.NewInt(1e6))),
 		},
 		vestingtypes.Period{
 			Length: 15 * 24 * 60 * 60, // 0 days - exact on the start time
-			Amount: sdk.NewCoins(sdk.NewCoin("ua0gi", sdkmath.NewInt(1e6))),
+			Amount: sdk.NewCoins(sdk.NewCoin(chaincfg.AuxiliaryDenom, sdkmath.NewInt(1e6))),
 		},
 		vestingtypes.Period{
 			Length: 15 * 24 * 60 * 60, // +15 days - vesting
-			Amount: sdk.NewCoins(sdk.NewCoin("ua0gi", sdkmath.NewInt(1e6))),
+			Amount: sdk.NewCoins(sdk.NewCoin(chaincfg.AuxiliaryDenom, sdkmath.NewInt(1e6))),
 		},
 	}
 
 	vacc := createVestingAccount(balance, vestingStartTime, periods)
-	vacc.TrackDelegation(vestingStartTime, balance, sdk.NewCoins(sdk.NewCoin("ua0gi", sdkmath.NewInt(1e6))))
+	vacc.TrackDelegation(vestingStartTime, balance, sdk.NewCoins(sdk.NewCoin(chaincfg.AuxiliaryDenom, sdkmath.NewInt(1e6))))
 
 	newVestingStartTime := vestingStartTime.Add(30 * 24 * time.Hour)
 	ResetPeriodicVestingAccount(vacc, newVestingStartTime)
 
 	assert.Equal(t, sdk.Coins(nil), vacc.DelegatedFree, "expected delegrated free to be unmodified")
-	assert.Equal(t, sdk.NewCoins(sdk.NewCoin("ua0gi", sdkmath.NewInt(1e6))), vacc.DelegatedVesting, "expected delegated vesting to be unmodified")
+	assert.Equal(t, sdk.NewCoins(sdk.NewCoin(chaincfg.AuxiliaryDenom, sdkmath.NewInt(1e6))), vacc.DelegatedVesting, "expected delegated vesting to be unmodified")
 }

proto/zgc/evmutil/v1beta1/conversion_pair.proto

@@ -13,7 +13,7 @@ message ConversionPair {
   option (gogoproto.goproto_getters) = false;
 
   // ERC20 address of the token on the 0gChain EVM
-  bytes zgChain_erc20_address = 1 [
+  bytes zgchain_erc20_address = 1 [
     (gogoproto.customname) = "ZgChainERC20Address",
     (gogoproto.casttype) = "HexBytes"
   ];

proto/zgc/evmutil/v1beta1/tx.proto

@@ -44,7 +44,7 @@ message MsgConvertERC20ToCoin {
   // 0gChain bech32 address that will receive the converted sdk.Coin.
   string receiver = 2 [(cosmos_proto.scalar) = "cosmos.AddressString"];
   // EVM 0x hex address of the ERC20 contract.
-  string zgChain_erc20_address = 3 [(gogoproto.customname) = "ZgChainERC20Address"];
+  string zgchain_erc20_address = 3 [(gogoproto.customname) = "ZgChainERC20Address"];
   // ERC20 token amount to convert.
   string amount = 4 [
     (cosmos_proto.scalar) = "cosmos.Int",

tests/e2e/e2e_convert_cosmos_coins_test.go

@@ -12,6 +12,7 @@ import (
 
 	ethtypes "github.com/ethereum/go-ethereum/core/types"
 
+	"github.com/0glabs/0g-chain/chaincfg"
 	"github.com/0glabs/0g-chain/tests/e2e/testutil"
 	"github.com/0glabs/0g-chain/tests/util"
 	evmutiltypes "github.com/0glabs/0g-chain/x/evmutil/types"
@@ -63,7 +64,7 @@ func (suite *IntegrationTestSuite) setupAccountWithCosmosCoinERC20Balance(
 	tx := util.ZgChainMsgRequest{
 		Msgs:      []sdk.Msg{&msg},
 		GasLimit:  4e5,
-		FeeAmount: sdk.NewCoins(a0gi(big.NewInt(400))),
+		FeeAmount: sdk.NewCoins(chaincfg.MakeCoinForAuxiliaryDenom(400)),
 		Data:      "converting sdk coin to erc20",
 	}
 	res := user.SignAndBroadcastZgChainTx(tx)
@@ -102,7 +103,7 @@ func (suite *IntegrationTestSuite) TestConvertCosmosCoinsToFromERC20() {
 	tx := util.ZgChainMsgRequest{
 		Msgs:      []sdk.Msg{&convertToErc20Msg},
 		GasLimit:  2e6,
-		FeeAmount: sdk.NewCoins(a0gi(big.NewInt(2000))),
+		FeeAmount: sdk.NewCoins(chaincfg.MakeCoinForAuxiliaryDenom(2000)),
 		Data:      "converting sdk coin to erc20",
 	}
 	res := user.SignAndBroadcastZgChainTx(tx)
@@ -144,7 +145,7 @@ func (suite *IntegrationTestSuite) TestConvertCosmosCoinsToFromERC20() {
 	tx = util.ZgChainMsgRequest{
 		Msgs:      []sdk.Msg{&convertFromErc20Msg},
 		GasLimit:  2e5,
-		FeeAmount: sdk.NewCoins(a0gi(big.NewInt(200))),
+		FeeAmount: sdk.NewCoins(chaincfg.MakeCoinForAuxiliaryDenom(200)),
 		Data:      "converting erc20 to cosmos coin",
 	}
 	res = user.SignAndBroadcastZgChainTx(tx)
@@ -183,7 +184,7 @@ func (suite *IntegrationTestSuite) TestEIP712ConvertCosmosCoinsToFromERC20() {
 		user,
 		suite.ZgChain,
 		2e6,
-		sdk.NewCoins(a0gi(big.NewInt(1e4))),
+		sdk.NewCoins(chaincfg.MakeCoinForAuxiliaryDenom(1e4)),
 		[]sdk.Msg{&convertToErc20Msg},
 		"this is a memo",
 	).GetTx()
@@ -237,7 +238,7 @@ func (suite *IntegrationTestSuite) TestEIP712ConvertCosmosCoinsToFromERC20() {
 		user,
 		suite.ZgChain,
 		2e5,
-		sdk.NewCoins(a0gi(big.NewInt(200))),
+		sdk.NewCoins(chaincfg.MakeCoinForAuxiliaryDenom(200)),
 		[]sdk.Msg{&convertFromErc20Msg},
 		"",
 	).GetTx()
@@ -331,7 +332,7 @@ func (suite *IntegrationTestSuite) TestConvertCosmosCoins_ERC20Magic() {
 		"cosmo-coin-converter-complex-alice", initialAliceAmount,
 	)
 
-	gasMoney := sdk.NewCoins(a0gi(big.NewInt(1e5)))
+	gasMoney := sdk.NewCoins(chaincfg.MakeCoinForAuxiliaryDenom(1e5))
 	bob := suite.ZgChain.NewFundedAccount("cosmo-coin-converter-complex-bob", gasMoney)
 	amount := big.NewInt(1e3) // test assumes this is half of alice's balance.
 
@@ -412,7 +413,7 @@ func (suite *IntegrationTestSuite) TestConvertCosmosCoins_ERC20Magic() {
 	convertTx := util.ZgChainMsgRequest{
 		Msgs:      []sdk.Msg{&convertMsg},
 		GasLimit:  2e5,
-		FeeAmount: sdk.NewCoins(a0gi(big.NewInt(200))),
+		FeeAmount: sdk.NewCoins(chaincfg.MakeCoinForAuxiliaryDenom(200)),
 		Data:      "bob converts his new erc20 to an sdk.Coin",
 	}
 	convertRes := bob.SignAndBroadcastZgChainTx(convertTx)

tests/e2e/e2e_evm_contracts_test.go

@@ -11,7 +11,7 @@ import (
 	banktypes "github.com/cosmos/cosmos-sdk/x/bank/types"
 
 	"github.com/0glabs/0g-chain/app"
-
+	"github.com/0glabs/0g-chain/chaincfg"
 	"github.com/0glabs/0g-chain/tests/e2e/contracts/greeter"
 	"github.com/0glabs/0g-chain/tests/util"
 )
@@ -20,7 +20,7 @@ func (suite *IntegrationTestSuite) TestEthCallToGreeterContract() {
 	// this test manipulates state of the Greeter contract which means other tests shouldn't use it.
 
 	// setup funded account to interact with contract
-	user := suite.ZgChain.NewFundedAccount("greeter-contract-user", sdk.NewCoins(a0gi(big.NewInt(1e6))))
+	user := suite.ZgChain.NewFundedAccount("greeter-contract-user", sdk.NewCoins(chaincfg.MakeCoinForAuxiliaryDenom(1e6)))
 
 	greeterAddr := suite.ZgChain.ContractAddrs["greeter"]
 	contract, err := greeter.NewGreeter(greeterAddr, suite.ZgChain.EvmClient)
@@ -63,12 +63,12 @@ func (suite *IntegrationTestSuite) TestEthCallToErc20() {
 
 func (suite *IntegrationTestSuite) TestEip712BasicMessageAuthorization() {
 	// create new funded account
-	sender := suite.ZgChain.NewFundedAccount("eip712-msgSend", sdk.NewCoins(a0gi(big.NewInt(2e4))))
+	sender := suite.ZgChain.NewFundedAccount("eip712-msgSend", sdk.NewCoins(chaincfg.MakeCoinForAuxiliaryDenom(2e4)))
 	receiver := app.RandomAddress()
 
-	// setup message for sending some a0gi to random receiver
+	// setup message for sending some auxiliary denom to random receiver
 	msgs := []sdk.Msg{
-		banktypes.NewMsgSend(sender.SdkAddress, receiver, sdk.NewCoins(a0gi(big.NewInt(1e3)))),
+		banktypes.NewMsgSend(sender.SdkAddress, receiver, sdk.NewCoins(chaincfg.MakeCoinForAuxiliaryDenom(1e3))),
 	}
 
 	// create tx
@@ -76,7 +76,7 @@ func (suite *IntegrationTestSuite) TestEip712BasicMessageAuthorization() {
 		sender,
 		suite.ZgChain,
 		1e6,
-		sdk.NewCoins(a0gi(big.NewInt(1e4))),
+		sdk.NewCoins(chaincfg.MakeCoinForAuxiliaryDenom(1e4)),
 		msgs,
 		"this is a memo",
 	).GetTx()
@@ -95,10 +95,10 @@ func (suite *IntegrationTestSuite) TestEip712BasicMessageAuthorization() {
 	_, err = util.WaitForSdkTxCommit(suite.ZgChain.Tx, res.TxResponse.TxHash, 6*time.Second)
 	suite.NoError(err)
 
-	// check that the message was processed & the a0gi is transferred.
+	// check that the message was processed & the auxiliary denom is transferred.
 	balRes, err := suite.ZgChain.Bank.Balance(context.Background(), &banktypes.QueryBalanceRequest{
 		Address: receiver.String(),
-		Denom:   "ua0gi",
+		Denom:   chaincfg.AuxiliaryDenom,
 	})
 	suite.NoError(err)
 	suite.Equal(sdk.NewInt(1e3), balRes.Balance.Amount)
@@ -113,7 +113,7 @@ func (suite *IntegrationTestSuite) TestEip712BasicMessageAuthorization() {
 // 	sdkDenom := suite.DeployedErc20.CosmosDenom
 
 // 	// create new funded account
-// 	depositor := suite.ZgChain.NewFundedAccount("eip712-lend-depositor", sdk.NewCoins(a0gi(big.NewInt(1e5)))
+// 	depositor := suite.ZgChain.NewFundedAccount("eip712-lend-depositor", sdk.NewCoins(chaincfg.MakeCoinForAuxiliaryDenom(1e5)))
 // 	// give them erc20 balance to deposit
 // 	fundRes := suite.FundZgChainErc20Balance(depositor.EvmAddress, amount.BigInt())
 // 	suite.NoError(fundRes.Err)
@@ -143,7 +143,7 @@ func (suite *IntegrationTestSuite) TestEip712BasicMessageAuthorization() {
 // 		depositor,
 // 		suite.ZgChain,
 // 		1e6,
-// 		sdk.NewCoins(a0gi(big.NewInt(1e4)),
+// 		sdk.NewCoins(chaincfg.MakeCoinForAuxiliaryDenom(1e4)),
 // 		msgs,
 // 		"doing the USDT Earn workflow! erc20 -> sdk.Coin -> USDX hard deposit",
 // 	).GetTx()
@@ -189,7 +189,7 @@ func (suite *IntegrationTestSuite) TestEip712BasicMessageAuthorization() {
 // 	withdrawAndConvertBack := util.ZgChainMsgRequest{
 // 		Msgs:      []sdk.Msg{&withdraw, &convertBack},
 // 		GasLimit:  1e6,
-// 		FeeAmount: sdk.NewCoins(a0gi(big.NewInt(1000)),
+// 		FeeAmount: sdk.NewCoins(chaincfg.MakeCoinForAuxiliaryDenom(1000)),
 // 		Data:      "withdrawing from mint & converting back to erc20",
 // 	}
 // 	lastRes := depositor.SignAndBroadcastZgChainTx(withdrawAndConvertBack)

tests/e2e/e2e_min_fees_test.go

@@ -13,6 +13,7 @@ import (
 	ethtypes "github.com/ethereum/go-ethereum/core/types"
 
 	"github.com/0glabs/0g-chain/app"
+	"github.com/0glabs/0g-chain/chaincfg"
 	"github.com/0glabs/0g-chain/tests/util"
 )
 
@@ -23,10 +24,10 @@ func (suite *IntegrationTestSuite) TestEthGasPriceReturnsMinFee() {
 	minGasPrices, err := getMinFeeFromAppToml(util.ZgChainHomePath())
 	suite.NoError(err)
 
-	// evm uses neuron, get neuron min fee
+	// evm uses base denom, get base denom min fee
-	evmMinGas := minGasPrices.AmountOf("neuron").TruncateInt().BigInt()
+	evmMinGas := minGasPrices.AmountOf(chaincfg.BaseDenom).TruncateInt().BigInt()
 
-	// returns eth_gasPrice, units in a0gi
+	// returns eth_gasPrice, units in auxiliary denom
 	gasPrice, err := suite.ZgChain.EvmClient.SuggestGasPrice(context.Background())
 	suite.NoError(err)
 
@@ -37,13 +38,13 @@ func (suite *IntegrationTestSuite) TestEvmRespectsMinFee() {
 	suite.SkipIfKvtoolDisabled()
 
 	// setup sender & receiver
-	sender := suite.ZgChain.NewFundedAccount("evm-min-fee-test-sender", sdk.NewCoins(a0gi(big.NewInt(1e3))))
+	sender := suite.ZgChain.NewFundedAccount("evm-min-fee-test-sender", sdk.NewCoins(chaincfg.MakeCoinForAuxiliaryDenom(1e3)))
 	randoReceiver := util.SdkToEvmAddress(app.RandomAddress())
 
 	// get min gas price for evm (from app.toml)
 	minFees, err := getMinFeeFromAppToml(util.ZgChainHomePath())
 	suite.NoError(err)
-	minGasPrice := minFees.AmountOf("neuron").TruncateInt()
+	minGasPrice := minFees.AmountOf(chaincfg.BaseDenom).TruncateInt()
 
 	// attempt tx with less than min gas price (min fee - 1)
 	tooLowGasPrice := minGasPrice.Sub(sdk.OneInt()).BigInt()

tests/e2e/e2e_test.go

@@ -19,18 +19,15 @@ import (
 	emtypes "github.com/evmos/ethermint/types"
 
 	"github.com/0glabs/0g-chain/app"
+	"github.com/0glabs/0g-chain/chaincfg"
 	"github.com/0glabs/0g-chain/tests/e2e/testutil"
 	"github.com/0glabs/0g-chain/tests/util"
 )
 
 var (
-	minEvmGasPrice = big.NewInt(1e10) // neuron
+	minEvmGasPrice = big.NewInt(1e10) // base denom
 )
 
-func a0gi(amt *big.Int) sdk.Coin {
-	return sdk.NewCoin("ua0gi", sdkmath.NewIntFromBigInt(amt))
-}
-
 type IntegrationTestSuite struct {
 	testutil.E2eTestSuite
 }
@@ -57,7 +54,7 @@ func (suite *IntegrationTestSuite) TestChainID() {
 
 // example test that funds a new account & queries its balance
 func (suite *IntegrationTestSuite) TestFundedAccount() {
-	funds := a0gi(big.NewInt(1e3))
+	funds := chaincfg.MakeCoinForAuxiliaryDenom(1e3)
 	acc := suite.ZgChain.NewFundedAccount("example-acc", sdk.NewCoins(funds))
 
 	// check that the sdk & evm signers are for the same account
@@ -66,21 +63,21 @@ func (suite *IntegrationTestSuite) TestFundedAccount() {
 
 	// check balance via SDK query
 	res, err := suite.ZgChain.Bank.Balance(context.Background(), banktypes.NewQueryBalanceRequest(
-		acc.SdkAddress, "ua0gi",
+		acc.SdkAddress, chaincfg.AuxiliaryDenom,
 	))
 	suite.NoError(err)
 	suite.Equal(funds, *res.Balance)
 
 	// check balance via EVM query
-	neuronBal, err := suite.ZgChain.EvmClient.BalanceAt(context.Background(), acc.EvmAddress, nil)
+	baseDenomBal, err := suite.ZgChain.EvmClient.BalanceAt(context.Background(), acc.EvmAddress, nil)
 	suite.NoError(err)
-	suite.Equal(funds.Amount.MulRaw(1e12).BigInt(), neuronBal)
+	suite.Equal(funds.Amount.MulRaw(1e12).BigInt(), baseDenomBal)
 }
 
 // example test that signs & broadcasts an EVM tx
 func (suite *IntegrationTestSuite) TestTransferOverEVM() {
 	// fund an account that can perform the transfer
-	initialFunds := a0gi(big.NewInt(1e6)) // 1 A0GI
+	initialFunds := chaincfg.MakeCoinForAuxiliaryDenom(1e6) // 1 (auxiliary denom)
 	acc := suite.ZgChain.NewFundedAccount("evm-test-transfer", sdk.NewCoins(initialFunds))
 
 	// get a rando account to send 0gchain to
@@ -92,10 +89,10 @@ func (suite *IntegrationTestSuite) TestTransferOverEVM() {
 	suite.NoError(err)
 	suite.Equal(uint64(0), nonce) // sanity check. the account should have no prior txs
 
-	// transfer a0gi over EVM
+	// transfer auxiliary denom over EVM
-	a0giToTransfer := big.NewInt(1e17) // .1 A0GI; neuron has 18 decimals.
+	AuxiliaryDenomToTransfer := big.NewInt(1e17) // .1 (auxiliary denom); base denom has 18 decimals.
 	req := util.EvmTxRequest{
-		Tx:   ethtypes.NewTransaction(nonce, to, a0giToTransfer, 1e5, minEvmGasPrice, nil),
+		Tx:   ethtypes.NewTransaction(nonce, to, AuxiliaryDenomToTransfer, 1e5, minEvmGasPrice, nil),
 		Data: "any ol' data to track this through the system",
 	}
 	res := acc.SignAndBroadcastEvmTx(req)
@@ -103,31 +100,31 @@ func (suite *IntegrationTestSuite) TestTransferOverEVM() {
 	suite.Equal(ethtypes.ReceiptStatusSuccessful, res.Receipt.Status)
 
 	// evm txs refund unused gas. so to know the expected balance we need to know how much gas was used.
-	a0giUsedForGas := sdkmath.NewIntFromBigInt(minEvmGasPrice).
+	AuxiliaryDenomUsedForGas := sdkmath.NewIntFromBigInt(minEvmGasPrice).
 		Mul(sdkmath.NewIntFromUint64(res.Receipt.GasUsed)).
-		QuoRaw(1e12) // convert neuron to a0gi
+		QuoRaw(1e12) // convert base denom to auxiliary denom
 
-	// expect (9 - gas used) A0GI remaining in account.
+	// expect (9 - gas used) (auxiliary denom) remaining in account.
 	balance := suite.ZgChain.QuerySdkForBalances(acc.SdkAddress)
-	suite.Equal(sdkmath.NewInt(9e5).Sub(a0giUsedForGas), balance.AmountOf("ua0gi"))
+	suite.Equal(sdkmath.NewInt(9e5).Sub(AuxiliaryDenomUsedForGas), balance.AmountOf(chaincfg.AuxiliaryDenom))
 }
 
-// TestIbcTransfer transfers A0GI from the primary 0g-chain (suite.ZgChain) to the ibc chain (suite.Ibc).
+// TestIbcTransfer transfers (auxiliary denom) from the primary 0g-chain (suite.ZgChain) to the ibc chain (suite.Ibc).
 // Note that because the IBC chain also runs 0g-chain's binary, this tests both the sending & receiving.
 func (suite *IntegrationTestSuite) TestIbcTransfer() {
 	suite.SkipIfIbcDisabled()
 
 	// ARRANGE
 	// setup 0g-chain account
-	funds := a0gi(big.NewInt(1e5)) // .1 A0GI
+	funds := chaincfg.MakeCoinForAuxiliaryDenom(1e5) // .1 (auxiliary denom)
 	zgChainAcc := suite.ZgChain.NewFundedAccount("ibc-transfer-0g-side", sdk.NewCoins(funds))
 	// setup ibc account
 	ibcAcc := suite.Ibc.NewFundedAccount("ibc-transfer-ibc-side", sdk.NewCoins())
 
 	gasLimit := int64(2e5)
-	fee := a0gi(big.NewInt(200))
+	fee := chaincfg.MakeCoinForAuxiliaryDenom(200)
 
-	fundsToSend := a0gi(big.NewInt(5e4)) // .005 A0GI
+	fundsToSend := chaincfg.MakeCoinForAuxiliaryDenom(5e4) // .005 (auxiliary denom)
 	transferMsg := ibctypes.NewMsgTransfer(
 		testutil.IbcPort,
 		testutil.IbcChannel,
@@ -157,7 +154,7 @@ func (suite *IntegrationTestSuite) TestIbcTransfer() {
 	// the balance should be deducted from 0g-chain account
 	suite.Eventually(func() bool {
 		balance := suite.ZgChain.QuerySdkForBalances(zgChainAcc.SdkAddress)
-		return balance.AmountOf("ua0gi").Equal(expectedSrcBalance.Amount)
+		return balance.AmountOf(chaincfg.AuxiliaryDenom).Equal(expectedSrcBalance.Amount)
 	}, 10*time.Second, 1*time.Second)
 
 	// expect the balance to be transferred to the ibc chain!

tests/e2e/e2e_upgrade_gov_and_authz_test.go

@@ -3,7 +3,6 @@ package e2e_test
 import (
 	"context"
 	"fmt"
-	"math/big"
 	"time"
 
 	sdk "github.com/cosmos/cosmos-sdk/types"
@@ -12,6 +11,7 @@ import (
 	banktypes "github.com/cosmos/cosmos-sdk/x/bank/types"
 	govv1 "github.com/cosmos/cosmos-sdk/x/gov/types/v1"
 
+	"github.com/0glabs/0g-chain/chaincfg"
 	"github.com/0glabs/0g-chain/tests/e2e/testutil"
 	"github.com/0glabs/0g-chain/tests/util"
 )
@@ -101,13 +101,13 @@ func (suite *IntegrationTestSuite) TestModuleAccountGovTransfers() {
 			name:     "transfer from community to kavadist for incentive rewards",
 			sender:   communityAcc,
 			receiver: zgChainDistAcc,
-			amount:   a0gi(big.NewInt(100)),
+			amount:   chaincfg.MakeCoinForAuxiliaryDenom(100),
 		},
 		{
 			name:     "transfer from kavadist to community",
 			sender:   zgChainDistAcc,
 			receiver: communityAcc,
-			amount:   a0gi(big.NewInt(50)),
+			amount:   chaincfg.MakeCoinForAuxiliaryDenom(50),
 		},
 	}
 
@@ -153,7 +153,7 @@ func (suite *IntegrationTestSuite) submitAndPassProposal(msgs []sdk.Msg) int64 {
 	suite.NoError(err)
 
 	gasLimit := 1e6
-	fee := sdk.NewCoin("neuron", sdk.NewInt(1e15))
+	fee := chaincfg.MakeCoinForBaseDenom(1e15)
 
 	req := util.ZgChainMsgRequest{
 		Msgs:      []sdk.Msg{proposalMsg},

tests/e2e/runner/chain.go

@@ -4,6 +4,7 @@ import (
 	"errors"
 	"fmt"
 
+	"github.com/0glabs/0g-chain/chaincfg"
 	rpchttpclient "github.com/cometbft/cometbft/rpc/client/http"
 	"github.com/ethereum/go-ethereum/ethclient"
 )
@@ -73,7 +74,7 @@ var (
 		EvmRpcUrl: "http://localhost:8545",
 
 		ChainId:      "0gchainlocalnet_8888-1",
-		StakingDenom: "ua0gi",
+		StakingDenom: chaincfg.AuxiliaryDenom,
 	}
 	kvtoolIbcChain = ChainDetails{
 		RpcUrl:    "http://localhost:26658",

tests/e2e/testutil/account.go

@@ -262,7 +262,7 @@ func (a *SigningAccount) BankSend(to sdk.AccAddress, amount sdk.Coins) util.ZgCh
 		util.ZgChainMsgRequest{
 			Msgs:      []sdk.Msg{banktypes.NewMsgSend(a.SdkAddress, to, amount)},
 			GasLimit:  2e5,                                                        // 200,000 gas
-			FeeAmount: sdk.NewCoins(sdk.NewCoin(a.gasDenom, sdkmath.NewInt(200))), // assume min gas price of .001a0gi
+			FeeAmount: sdk.NewCoins(sdk.NewCoin(a.gasDenom, sdkmath.NewInt(200))), // assume min gas price of .001 auxiliary denom
 			Data:      fmt.Sprintf("sending %s to %s", amount, to),
 		},
 	)

x/bep3/client/cli/query.go

@@ -106,7 +106,7 @@ func QueryCalcSwapIDCmd(queryRoute string) *cobra.Command {
 	return &cobra.Command{
 		Use:     "calc-swapid [random-number-hash] [sender] [sender-other-chain]",
 		Short:   "calculate swap ID for the given random number hash, sender, and sender other chain",
-		Example: "bep3 calc-swapid 0677bd8a303dd981810f34d8e5cc6507f13b391899b84d3c1be6c6045a17d747 kava1l0xsq2z7gqd7yly0g40y5836g0appumark77ny bnb1ud3q90r98l3mhd87kswv3h8cgrymzeljct8qn7",
+		Example: "bep3 calc-swapid 0677bd8a303dd981810f34d8e5cc6507f13b391899b84d3c1be6c6045a17d747 0g1l0xsq2z7gqd7yly0g40y5836g0appumark77ny bnb1ud3q90r98l3mhd87kswv3h8cgrymzeljct8qn7",
 		Args:    cobra.MinimumNArgs(3),
 		RunE: func(cmd *cobra.Command, args []string) error {
 			clientCtx, err := client.GetClientQueryContext(cmd)
@@ -220,7 +220,7 @@ func QueryGetAtomicSwapsCmd(queryRoute string) *cobra.Command {
 		Short: "query atomic swaps with optional filters",
 		Long: strings.TrimSpace(`Query for all paginated atomic swaps that match optional filters:
 Example:
-$ kvcli q bep3 swaps --involve=kava1l0xsq2z7gqd7yly0g40y5836g0appumark77ny
+$ kvcli q bep3 swaps --involve=0g1l0xsq2z7gqd7yly0g40y5836g0appumark77ny
 $ kvcli q bep3 swaps --expiration=280
 $ kvcli q bep3 swaps --status=(Open|Completed|Expired)
 $ kvcli q bep3 swaps --direction=(Incoming|Outgoing)

x/bep3/keeper/msg_server_test.go

@@ -12,6 +12,7 @@ import (
 	sdk "github.com/cosmos/cosmos-sdk/types"
 
 	"github.com/0glabs/0g-chain/app"
+	"github.com/0glabs/0g-chain/chaincfg"
 	"github.com/0glabs/0g-chain/x/bep3"
 	"github.com/0glabs/0g-chain/x/bep3/keeper"
 	"github.com/0glabs/0g-chain/x/bep3/types"
@@ -35,7 +36,7 @@ func (suite *MsgServerTestSuite) SetupTest() {
 
 	// Set up genesis state and initialize
 	_, addrs := app.GeneratePrivKeyAddressPairs(3)
-	coins := sdk.NewCoins(c("bnb", 10000000000), c("a0gi", 10000))
+	coins := sdk.NewCoins(c("bnb", 10000000000), c(chaincfg.AuxiliaryDenom, 10000))
 	authGS := app.NewFundedGenStateWithSameCoins(tApp.AppCodec(), coins, addrs)
 	tApp.InitializeFromGenesisStates(authGS, NewBep3GenStateMulti(cdc, addrs[0]))
 

x/bep3/types/genesis_test.go

@@ -20,7 +20,7 @@ type GenesisTestSuite struct {
 }
 
 func (suite *GenesisTestSuite) SetupTest() {
-	coin := sdk.NewCoin("a0gi", sdk.OneInt())
+	coin := chaincfg.MakeCoinForAuxiliaryDenom(1)
 	suite.swaps = atomicSwaps(10)
 
 	supply := types.NewAssetSupply(coin, coin, coin, coin, time.Duration(0))

x/bep3/types/supply_test.go

@@ -5,12 +5,13 @@ import (
 	"time"
 
 	sdkmath "cosmossdk.io/math"
+	"github.com/0glabs/0g-chain/chaincfg"
 	sdk "github.com/cosmos/cosmos-sdk/types"
 	"github.com/stretchr/testify/require"
 )
 
 func TestAssetSupplyValidate(t *testing.T) {
-	coin := sdk.NewCoin("a0gi", sdk.OneInt())
+	coin := chaincfg.MakeCoinForAuxiliaryDenom(1)
 	invalidCoin := sdk.Coin{Denom: "Invalid Denom", Amount: sdkmath.NewInt(-1)}
 	testCases := []struct {
 		msg     string

x/committee/keeper/msg_server_test.go

@@ -6,12 +6,12 @@ import (
 
 	"github.com/stretchr/testify/suite"
 
-	sdkmath "cosmossdk.io/math"
 	tmproto "github.com/cometbft/cometbft/proto/tendermint/types"
 	sdk "github.com/cosmos/cosmos-sdk/types"
 	upgradetypes "github.com/cosmos/cosmos-sdk/x/upgrade/types"
 
 	"github.com/0glabs/0g-chain/app"
+	"github.com/0glabs/0g-chain/chaincfg"
 	"github.com/0glabs/0g-chain/x/committee/keeper"
 	"github.com/0glabs/0g-chain/x/committee/types"
 )
@@ -61,7 +61,7 @@ func (suite *MsgServerTestSuite) SetupTest() {
 		[]types.Proposal{},
 		[]types.Vote{},
 	)
-	suite.communityPoolAmt = sdk.NewCoins(sdk.NewCoin("neuron", sdkmath.NewInt(1000000000000000)))
+	suite.communityPoolAmt = sdk.NewCoins(chaincfg.MakeCoinForBaseDenom(1000000000000000))
 	suite.app.InitializeFromGenesisStates(
 		app.GenesisState{types.ModuleName: cdc.MustMarshalJSON(testGenesis)},
 		// TODO: not used?

x/committee/types/committee.go

@@ -4,6 +4,7 @@ import (
 	fmt "fmt"
 	"time"
 
+	"github.com/0glabs/0g-chain/chaincfg"
 	"github.com/cosmos/cosmos-sdk/codec"
 	codectypes "github.com/cosmos/cosmos-sdk/codec/types"
 	sdk "github.com/cosmos/cosmos-sdk/types"
@@ -18,7 +19,7 @@ const (
 	BaseCommitteeType   = "0g/BaseCommittee"
 	MemberCommitteeType = "0g/MemberCommittee" // Committee is composed of member addresses that vote to enact proposals within their permissions
 	TokenCommitteeType  = "0g/TokenCommittee"  // Committee is composed of token holders with voting power determined by total token balance
-	BondDenom           = "neuron"
+	BondDenom           = chaincfg.BondDenom
 )
 
 // Marshal needed for protobuf compatibility.

x/council/v1/client/cli/tx.go

@@ -171,10 +171,10 @@ func NewVoteCmd() *cobra.Command {
 					tokens = val.GetTokens()
 				}
 			}
-			// the denom of token is neuron, need to convert to A0GI
+			// the denom of token is base denom, need to convert to A0GI
-			a0gi := tokens.Quo(sdk.NewInt(1_000_000_000_000_000_000))
+			a0giTokenCnt := tokens.Quo(sdk.NewInt(1_000_000_000_000_000_000))
 			// 1_000 0AGI token / vote
-			numBallots := a0gi.Quo(sdk.NewInt(1_000)).Uint64()
+			numBallots := a0giTokenCnt.Quo(sdk.NewInt(1_000)).Uint64()
 			ballots := make([]*types.Ballot, numBallots)
 			for i := range ballots {
 				ballotID := uint64(i)

x/council/v1/types/codec.go

@@ -21,8 +21,8 @@ var (
 
 const (
 	// Amino names
-	registerName = "evmos/council/MsgRegister"
+	registerName = "0g/council/MsgRegister"
-	voteName     = "evmos/council/MsgVote"
+	voteName     = "0g/council/MsgVote"
 )
 
 // NOTE: This is required for the GetSignBytes function

x/evmutil/keeper/bank_keeper.go

@@ -9,64 +9,57 @@ import (
 	sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
 	evmtypes "github.com/evmos/ethermint/x/evm/types"
 
+	"github.com/0glabs/0g-chain/chaincfg"
 	"github.com/0glabs/0g-chain/x/evmutil/types"
 )
 
-const (
+// ConversionMultiplier is the conversion multiplier between base denom and auxiliary denom
-	// EvmDenom is the gas denom used by the evm
+var ConversionMultiplier = sdkmath.NewInt(chaincfg.AuxiliaryDenomConversionMultiplier)
-	EvmDenom = "neuron"
-
-	// CosmosDenom is the gas denom used by the 0g-chain app
-	CosmosDenom = "ua0gi"
-)
-
-// ConversionMultiplier is the conversion multiplier between neuron and ua0gi
-var ConversionMultiplier = sdkmath.NewInt(1_000_000_000_000)
 
 var _ evmtypes.BankKeeper = EvmBankKeeper{}
 
 // EvmBankKeeper is a BankKeeper wrapper for the x/evm module to allow the use
-// of the 18 decimal neuron coin on the evm.
+// of the 18 decimal base denom coin on the evm.
-// x/evm consumes gas and send coins by minting and burning neuron coins in its module
+// x/evm consumes gas and send coins by minting and burning base denom coins in its module
 // account and then sending the funds to the target account.
-// This keeper uses both the a0gi coin and a separate neuron balance to manage the
+// This keeper uses both the auxiliary denom coin and a separate base denom balance to manage the
 // extra percision needed by the evm.
 type EvmBankKeeper struct {
-	neuronKeeper Keeper
+	baseDenomKeeper Keeper
-	bk           types.BankKeeper
+	bk              types.BankKeeper
-	ak           types.AccountKeeper
+	ak              types.AccountKeeper
 }
 
-func NewEvmBankKeeper(neuronKeeper Keeper, bk types.BankKeeper, ak types.AccountKeeper) EvmBankKeeper {
+func NewEvmBankKeeper(baseKeeper Keeper, bk types.BankKeeper, ak types.AccountKeeper) EvmBankKeeper {
 	return EvmBankKeeper{
-		neuronKeeper: neuronKeeper,
+		baseDenomKeeper: baseKeeper,
-		bk:           bk,
+		bk:              bk,
-		ak:           ak,
+		ak:              ak,
 	}
 }
 
-// GetBalance returns the total **spendable** balance of neuron for a given account by address.
+// GetBalance returns the total **spendable** balance of base denom for a given account by address.
 func (k EvmBankKeeper) GetBalance(ctx sdk.Context, addr sdk.AccAddress, denom string) sdk.Coin {
-	if denom != EvmDenom {
+	if denom != chaincfg.BaseDenom {
-		panic(fmt.Errorf("only evm denom %s is supported by EvmBankKeeper", EvmDenom))
+		panic(fmt.Errorf("only evm denom %s is supported by EvmBankKeeper", chaincfg.BaseDenom))
 	}
 
 	spendableCoins := k.bk.SpendableCoins(ctx, addr)
-	cosmosDenomFromBank := spendableCoins.AmountOf(CosmosDenom)
+	auxiliaryDenomFromBank := spendableCoins.AmountOf(chaincfg.AuxiliaryDenom)
-	evmDenomFromBank := spendableCoins.AmountOf(EvmDenom)
+	baseDenomFromBank := spendableCoins.AmountOf(chaincfg.BaseDenom)
-	evmDenomFromEvmBank := k.neuronKeeper.GetBalance(ctx, addr)
+	baseDenomFromEvmBank := k.baseDenomKeeper.GetBalance(ctx, addr)
 
 	var total sdkmath.Int
 
-	if cosmosDenomFromBank.IsPositive() {
+	if auxiliaryDenomFromBank.IsPositive() {
-		total = cosmosDenomFromBank.Mul(ConversionMultiplier).Add(evmDenomFromBank).Add(evmDenomFromEvmBank)
+		total = auxiliaryDenomFromBank.Mul(ConversionMultiplier).Add(baseDenomFromBank).Add(baseDenomFromEvmBank)
 	} else {
-		total = evmDenomFromBank.Add(evmDenomFromEvmBank)
+		total = baseDenomFromBank.Add(baseDenomFromEvmBank)
 	}
-	return sdk.NewCoin(EvmDenom, total)
+	return sdk.NewCoin(chaincfg.BaseDenom, total)
 }
 
-// SendCoins transfers neuron coins from a AccAddress to an AccAddress.
+// SendCoins transfers base denom coins from a AccAddress to an AccAddress.
 func (k EvmBankKeeper) SendCoins(ctx sdk.Context, senderAddr sdk.AccAddress, recipientAddr sdk.AccAddress, amt sdk.Coins) error {
 	// SendCoins method is not used by the evm module, but is required by the
 	// evmtypes.BankKeeper interface. This must be updated if the evm module
@@ -74,148 +67,148 @@ func (k EvmBankKeeper) SendCoins(ctx sdk.Context, senderAddr sdk.AccAddress, rec
 	panic("not implemented")
 }
 
-// SendCoinsFromModuleToAccount transfers neuron coins from a ModuleAccount to an AccAddress.
+// SendCoinsFromModuleToAccount transfers base denom coins from a ModuleAccount to an AccAddress.
 // It will panic if the module account does not exist. An error is returned if the recipient
 // address is black-listed or if sending the tokens fails.
 func (k EvmBankKeeper) SendCoinsFromModuleToAccount(ctx sdk.Context, senderModule string, recipientAddr sdk.AccAddress, amt sdk.Coins) error {
-	ua0gi, neuron, err := SplitNeuronCoins(amt)
+	auxiliaryDenomCoin, baseDemonCnt, err := SplitBaseDenomCoins(amt)
 	if err != nil {
 		return err
 	}
 
-	if ua0gi.Amount.IsPositive() {
+	if auxiliaryDenomCoin.Amount.IsPositive() {
-		if err := k.bk.SendCoinsFromModuleToAccount(ctx, senderModule, recipientAddr, sdk.NewCoins(ua0gi)); err != nil {
+		if err := k.bk.SendCoinsFromModuleToAccount(ctx, senderModule, recipientAddr, sdk.NewCoins(auxiliaryDenomCoin)); err != nil {
 			return err
 		}
 	}
 
 	senderAddr := k.GetModuleAddress(senderModule)
-	if err := k.ConvertOneUa0giToNeuronIfNeeded(ctx, senderAddr, neuron); err != nil {
+	if err := k.ConvertOneAuxiliaryDenomToBaseDenomIfNeeded(ctx, senderAddr, baseDemonCnt); err != nil {
 		return err
 	}
 
-	if err := k.neuronKeeper.SendBalance(ctx, senderAddr, recipientAddr, neuron); err != nil {
+	if err := k.baseDenomKeeper.SendBalance(ctx, senderAddr, recipientAddr, baseDemonCnt); err != nil {
 		return err
 	}
 
-	return k.ConvertNeuronToUa0gi(ctx, recipientAddr)
+	return k.ConvertBaseDenomToAuxiliaryDenom(ctx, recipientAddr)
 }
 
-// SendCoinsFromAccountToModule transfers neuron coins from an AccAddress to a ModuleAccount.
+// SendCoinsFromAccountToModule transfers base denom coins from an AccAddress to a ModuleAccount.
 // It will panic if the module account does not exist.
 func (k EvmBankKeeper) SendCoinsFromAccountToModule(ctx sdk.Context, senderAddr sdk.AccAddress, recipientModule string, amt sdk.Coins) error {
-	ua0gi, neuronNeeded, err := SplitNeuronCoins(amt)
+	auxiliaryDenomCoin, baseDenomCnt, err := SplitBaseDenomCoins(amt)
 	if err != nil {
 		return err
 	}
 
-	if ua0gi.IsPositive() {
+	if auxiliaryDenomCoin.IsPositive() {
-		if err := k.bk.SendCoinsFromAccountToModule(ctx, senderAddr, recipientModule, sdk.NewCoins(ua0gi)); err != nil {
+		if err := k.bk.SendCoinsFromAccountToModule(ctx, senderAddr, recipientModule, sdk.NewCoins(auxiliaryDenomCoin)); err != nil {
 			return err
 		}
 	}
 
-	if err := k.ConvertOneUa0giToNeuronIfNeeded(ctx, senderAddr, neuronNeeded); err != nil {
+	if err := k.ConvertOneAuxiliaryDenomToBaseDenomIfNeeded(ctx, senderAddr, baseDenomCnt); err != nil {
 		return err
 	}
 
 	recipientAddr := k.GetModuleAddress(recipientModule)
-	if err := k.neuronKeeper.SendBalance(ctx, senderAddr, recipientAddr, neuronNeeded); err != nil {
+	if err := k.baseDenomKeeper.SendBalance(ctx, senderAddr, recipientAddr, baseDenomCnt); err != nil {
 		return err
 	}
 
-	return k.ConvertNeuronToUa0gi(ctx, recipientAddr)
+	return k.ConvertBaseDenomToAuxiliaryDenom(ctx, recipientAddr)
 }
 
-// MintCoins mints neuron coins by minting the equivalent a0gi coins and any remaining neuron coins.
+// MintCoins mints base denom coins by minting the equivalent auxiliary denom coins and any remaining base denom coins.
 // It will panic if the module account does not exist or is unauthorized.
 func (k EvmBankKeeper) MintCoins(ctx sdk.Context, moduleName string, amt sdk.Coins) error {
-	ua0gi, neuron, err := SplitNeuronCoins(amt)
+	auxiliaryDenomCoin, baseDemonCnt, err := SplitBaseDenomCoins(amt)
 	if err != nil {
 		return err
 	}
 
-	if ua0gi.IsPositive() {
+	if auxiliaryDenomCoin.IsPositive() {
-		if err := k.bk.MintCoins(ctx, moduleName, sdk.NewCoins(ua0gi)); err != nil {
+		if err := k.bk.MintCoins(ctx, moduleName, sdk.NewCoins(auxiliaryDenomCoin)); err != nil {
 			return err
 		}
 	}
 
 	recipientAddr := k.GetModuleAddress(moduleName)
-	if err := k.neuronKeeper.AddBalance(ctx, recipientAddr, neuron); err != nil {
+	if err := k.baseDenomKeeper.AddBalance(ctx, recipientAddr, baseDemonCnt); err != nil {
 		return err
 	}
 
-	return k.ConvertNeuronToUa0gi(ctx, recipientAddr)
+	return k.ConvertBaseDenomToAuxiliaryDenom(ctx, recipientAddr)
 }
 
-// BurnCoins burns neuron coins by burning the equivalent a0gi coins and any remaining neuron coins.
+// BurnCoins burns base denom coins by burning the equivalent auxiliary denom coins and any remaining base denom coins.
 // It will panic if the module account does not exist or is unauthorized.
 func (k EvmBankKeeper) BurnCoins(ctx sdk.Context, moduleName string, amt sdk.Coins) error {
-	ua0gi, neuron, err := SplitNeuronCoins(amt)
+	auxiliaryDenomCoin, baseDemonCnt, err := SplitBaseDenomCoins(amt)
 	if err != nil {
 		return err
 	}
 
-	if ua0gi.IsPositive() {
+	if auxiliaryDenomCoin.IsPositive() {
-		if err := k.bk.BurnCoins(ctx, moduleName, sdk.NewCoins(ua0gi)); err != nil {
+		if err := k.bk.BurnCoins(ctx, moduleName, sdk.NewCoins(auxiliaryDenomCoin)); err != nil {
 			return err
 		}
 	}
 
 	moduleAddr := k.GetModuleAddress(moduleName)
-	if err := k.ConvertOneUa0giToNeuronIfNeeded(ctx, moduleAddr, neuron); err != nil {
+	if err := k.ConvertOneAuxiliaryDenomToBaseDenomIfNeeded(ctx, moduleAddr, baseDemonCnt); err != nil {
 		return err
 	}
 
-	return k.neuronKeeper.RemoveBalance(ctx, moduleAddr, neuron)
+	return k.baseDenomKeeper.RemoveBalance(ctx, moduleAddr, baseDemonCnt)
 }
 
-// ConvertOneUa0giToNeuronIfNeeded converts 1 a0gi to neuron for an address if
+// ConvertOneauxiliaryDenomToBaseDenomIfNeeded converts 1 auxiliary denom to base denom for an address if
-// its neuron balance is smaller than the neuronNeeded amount.
+// its base denom balance is smaller than the baseDenomCnt amount.
-func (k EvmBankKeeper) ConvertOneUa0giToNeuronIfNeeded(ctx sdk.Context, addr sdk.AccAddress, neuronNeeded sdkmath.Int) error {
+func (k EvmBankKeeper) ConvertOneAuxiliaryDenomToBaseDenomIfNeeded(ctx sdk.Context, addr sdk.AccAddress, baseDenomCnt sdkmath.Int) error {
-	neuronBal := k.neuronKeeper.GetBalance(ctx, addr)
+	baseDenomBal := k.baseDenomKeeper.GetBalance(ctx, addr)
-	if neuronBal.GTE(neuronNeeded) {
+	if baseDenomBal.GTE(baseDenomCnt) {
 		return nil
 	}
 
-	ua0giToStore := sdk.NewCoins(sdk.NewCoin(CosmosDenom, sdk.OneInt()))
+	auxiliaryDenomToStore := sdk.NewCoins(sdk.NewCoin(chaincfg.AuxiliaryDenom, sdk.OneInt()))
-	if err := k.bk.SendCoinsFromAccountToModule(ctx, addr, types.ModuleName, ua0giToStore); err != nil {
+	if err := k.bk.SendCoinsFromAccountToModule(ctx, addr, types.ModuleName, auxiliaryDenomToStore); err != nil {
 		return err
 	}
 
-	// add 1a0gi equivalent of neuron to addr
+	// add 1 auxiliary denom equivalent of base denom to addr
-	neuronToReceive := ConversionMultiplier
+	baseDenomToReceive := ConversionMultiplier
-	if err := k.neuronKeeper.AddBalance(ctx, addr, neuronToReceive); err != nil {
+	if err := k.baseDenomKeeper.AddBalance(ctx, addr, baseDenomToReceive); err != nil {
 		return err
 	}
 
 	return nil
 }
 
-// ConvertNeuronToA0gi converts all available neuron to a0gi for a given AccAddress.
+// ConvertBaseDenomToauxiliaryDenom converts all available base denom to auxiliary denom for a given AccAddress.
-func (k EvmBankKeeper) ConvertNeuronToUa0gi(ctx sdk.Context, addr sdk.AccAddress) error {
+func (k EvmBankKeeper) ConvertBaseDenomToAuxiliaryDenom(ctx sdk.Context, addr sdk.AccAddress) error {
-	totalNeuron := k.neuronKeeper.GetBalance(ctx, addr)
+	totalBaseDenom := k.baseDenomKeeper.GetBalance(ctx, addr)
-	ua0gi, _, err := SplitNeuronCoins(sdk.NewCoins(sdk.NewCoin(EvmDenom, totalNeuron)))
+	auxiliaryDenomCoin, _, err := SplitBaseDenomCoins(sdk.NewCoins(sdk.NewCoin(chaincfg.BaseDenom, totalBaseDenom)))
 	if err != nil {
 		return err
 	}
 
-	// do nothing if account does not have enough neuron for a single a0gi
+	// do nothing if account does not have enough base denom for a single auxiliary denom
-	ua0giToReceive := ua0gi.Amount
+	auxiliaryDenomToReceive := auxiliaryDenomCoin.Amount
-	if !ua0giToReceive.IsPositive() {
+	if !auxiliaryDenomToReceive.IsPositive() {
 		return nil
 	}
 
-	// remove neuron used for converting to ua0gi
+	// remove base denom used for converting to auxiliary denom
-	neuronToBurn := ua0giToReceive.Mul(ConversionMultiplier)
+	baseDenomToBurn := auxiliaryDenomToReceive.Mul(ConversionMultiplier)
-	finalBal := totalNeuron.Sub(neuronToBurn)
+	finalBal := totalBaseDenom.Sub(baseDenomToBurn)
-	if err := k.neuronKeeper.SetBalance(ctx, addr, finalBal); err != nil {
+	if err := k.baseDenomKeeper.SetBalance(ctx, addr, finalBal); err != nil {
 		return err
 	}
 
 	fromAddr := k.GetModuleAddress(types.ModuleName)
-	if err := k.bk.SendCoins(ctx, fromAddr, addr, sdk.NewCoins(ua0gi)); err != nil {
+	if err := k.bk.SendCoins(ctx, fromAddr, addr, sdk.NewCoins(auxiliaryDenomCoin)); err != nil {
 		return err
 	}
 
@@ -230,35 +223,35 @@ func (k EvmBankKeeper) GetModuleAddress(moduleName string) sdk.AccAddress {
 	return addr
 }
 
-// SplitNeuronCoins splits neuron coins to the equivalent a0gi coins and any remaining neuron balance.
+// SplitBaseDenomCoins splits base denom coins to the equivalent auxiliary denom coins and any remaining base denom balance.
-// An error will be returned if the coins are not valid or if the coins are not the neuron denom.
+// An error will be returned if the coins are not valid or if the coins are not the base denom.
-func SplitNeuronCoins(coins sdk.Coins) (sdk.Coin, sdkmath.Int, error) {
+func SplitBaseDenomCoins(coins sdk.Coins) (sdk.Coin, sdkmath.Int, error) {
-	neuron := sdk.ZeroInt()
+	baseDemonCnt := sdk.ZeroInt()
-	ua0gi := sdk.NewCoin(CosmosDenom, sdk.ZeroInt())
+	auxiliaryDenomAmt := sdk.NewCoin(chaincfg.AuxiliaryDenom, sdk.ZeroInt())
 
 	if len(coins) == 0 {
-		return ua0gi, neuron, nil
+		return auxiliaryDenomAmt, baseDemonCnt, nil
 	}
 
 	if err := ValidateEvmCoins(coins); err != nil {
-		return ua0gi, neuron, err
+		return auxiliaryDenomAmt, baseDemonCnt, err
 	}
 
 	// note: we should always have len(coins) == 1 here since coins cannot have dup denoms after we validate.
 	coin := coins[0]
 	remainingBalance := coin.Amount.Mod(ConversionMultiplier)
 	if remainingBalance.IsPositive() {
-		neuron = remainingBalance
+		baseDemonCnt = remainingBalance
 	}
-	ua0giAmount := coin.Amount.Quo(ConversionMultiplier)
+	auxiliaryDenomAmount := coin.Amount.Quo(ConversionMultiplier)
-	if ua0giAmount.IsPositive() {
+	if auxiliaryDenomAmount.IsPositive() {
-		ua0gi = sdk.NewCoin(CosmosDenom, ua0giAmount)
+		auxiliaryDenomAmt = sdk.NewCoin(chaincfg.AuxiliaryDenom, auxiliaryDenomAmount)
 	}
 
-	return ua0gi, neuron, nil
+	return auxiliaryDenomAmt, baseDemonCnt, nil
 }
 
-// ValidateEvmCoins validates the coins from evm is valid and is the EvmDenom (neuron).
+// ValidateEvmCoins validates the coins from evm is valid and is the base denom.
 func ValidateEvmCoins(coins sdk.Coins) error {
 	if len(coins) == 0 {
 		return nil
@@ -269,9 +262,9 @@ func ValidateEvmCoins(coins sdk.Coins) error {
 		return errorsmod.Wrap(sdkerrors.ErrInvalidCoins, coins.String())
 	}
 
-	// validate that coin denom is neuron
+	// validate that coin denom is base denom
-	if len(coins) != 1 || coins[0].Denom != EvmDenom {
+	if len(coins) != 1 || coins[0].Denom != chaincfg.BaseDenom {
-		errMsg := fmt.Sprintf("invalid evm coin denom, only %s is supported", EvmDenom)
+		errMsg := fmt.Sprintf("invalid evm coin denom, only %s is supported", chaincfg.BaseDenom)
 		return errorsmod.Wrap(sdkerrors.ErrInvalidCoins, errMsg)
 	}
 

x/evmutil/keeper/bank_keeper_test.go

@@ -14,6 +14,7 @@ import (
 	vesting "github.com/cosmos/cosmos-sdk/x/auth/vesting/types"
 	evmtypes "github.com/evmos/ethermint/x/evm/types"
 
+	"github.com/0glabs/0g-chain/chaincfg"
 	"github.com/0glabs/0g-chain/x/evmutil/keeper"
 	"github.com/0glabs/0g-chain/x/evmutil/testutil"
 	"github.com/0glabs/0g-chain/x/evmutil/types"
@@ -34,8 +35,8 @@ func (suite *evmBankKeeperTestSuite) SetupTest() {
 }
 
 func (suite *evmBankKeeperTestSuite) TestGetBalance_ReturnsSpendable() {
-	startingCoins := sdk.NewCoins(sdk.NewInt64Coin("ua0gi", 10))
+	startingCoins := sdk.NewCoins(sdk.NewInt64Coin(chaincfg.AuxiliaryDenom, 10))
-	startingNeuron := sdkmath.NewInt(100)
+	startingBaseDenom := sdkmath.NewInt(100)
 
 	now := tmtime.Now()
 	endTime := now.Add(24 * time.Hour)
@@ -45,24 +46,26 @@ func (suite *evmBankKeeperTestSuite) TestGetBalance_ReturnsSpendable() {
 
 	err := suite.App.FundAccount(suite.Ctx, suite.Addrs[0], startingCoins)
 	suite.Require().NoError(err)
-	err = suite.Keeper.SetBalance(suite.Ctx, suite.Addrs[0], startingNeuron)
+	err = suite.Keeper.SetBalance(suite.Ctx, suite.Addrs[0], startingBaseDenom)
 	suite.Require().NoError(err)
 
-	coin := suite.EvmBankKeeper.GetBalance(suite.Ctx, suite.Addrs[0], "neuron")
+	coin := suite.EvmBankKeeper.GetBalance(suite.Ctx, suite.Addrs[0], chaincfg.BaseDenom)
-	suite.Require().Equal(startingNeuron, coin.Amount)
+	suite.Require().Equal(startingBaseDenom, coin.Amount)
 
 	ctx := suite.Ctx.WithBlockTime(now.Add(12 * time.Hour))
-	coin = suite.EvmBankKeeper.GetBalance(ctx, suite.Addrs[0], "neuron")
+	coin = suite.EvmBankKeeper.GetBalance(ctx, suite.Addrs[0], chaincfg.BaseDenom)
 	suite.Require().Equal(sdkmath.NewIntFromUint64(5_000_000_000_100), coin.Amount)
 }
+
 func (suite *evmBankKeeperTestSuite) TestGetBalance_NotEvmDenom() {
 	suite.Require().Panics(func() {
-		suite.EvmBankKeeper.GetBalance(suite.Ctx, suite.Addrs[0], "ua0gi")
+		suite.EvmBankKeeper.GetBalance(suite.Ctx, suite.Addrs[0], chaincfg.AuxiliaryDenom)
 	})
 	suite.Require().Panics(func() {
 		suite.EvmBankKeeper.GetBalance(suite.Ctx, suite.Addrs[0], "busd")
 	})
 }
+
 func (suite *evmBankKeeperTestSuite) TestGetBalance() {
 	tests := []struct {
 		name           string
@@ -70,41 +73,41 @@ func (suite *evmBankKeeperTestSuite) TestGetBalance() {
 		expAmount      sdkmath.Int
 	}{
 		{
-			"ua0gi with neuron",
+			"auxiliary denom with base denom",
 			sdk.NewCoins(
-				sdk.NewInt64Coin("neuron", 100),
+				sdk.NewInt64Coin(chaincfg.BaseDenom, 100),
-				sdk.NewInt64Coin("ua0gi", 10),
+				sdk.NewInt64Coin(chaincfg.AuxiliaryDenom, 10),
 			),
-			sdk.NewIntFromBigInt(makeBigIntByString("10000000000100")),
+			sdkmath.NewInt(10_000_000_000_100),
 		},
 		{
-			"just neuron",
+			"just base denom",
 			sdk.NewCoins(
-				sdk.NewInt64Coin("neuron", 100),
+				sdk.NewInt64Coin(chaincfg.BaseDenom, 100),
 				sdk.NewInt64Coin("busd", 100),
 			),
 			sdkmath.NewInt(100),
 		},
 		{
-			"just ua0gi",
+			"just auxiliary denom",
 			sdk.NewCoins(
-				sdk.NewInt64Coin("ua0gi", 10),
+				sdk.NewInt64Coin(chaincfg.AuxiliaryDenom, 10),
 				sdk.NewInt64Coin("busd", 100),
 			),
-			sdk.NewIntFromBigInt(makeBigIntByString("10000000000000")),
+			sdkmath.NewInt(10_000_000_000_000),
 		},
 		{
-			"no ua0gi or neuron",
+			"no auxiliary denom or base denom",
 			sdk.NewCoins(),
 			sdk.ZeroInt(),
 		},
 		{
-			"with avaka that is more than 1 ua0gi",
+			"with avaka that is more than 1 auxiliary denom",
 			sdk.NewCoins(
-				sdk.NewCoin("neuron", sdk.NewIntFromBigInt(makeBigIntByString("20000000000220"))),
+				sdk.NewInt64Coin(chaincfg.BaseDenom, 20_000_000_000_220),
-				sdk.NewInt64Coin("ua0gi", 11),
+				sdk.NewInt64Coin(chaincfg.AuxiliaryDenom, 11),
 			),
-			sdk.NewIntFromBigInt(makeBigIntByString("31000000000220")),
+			sdkmath.NewInt(31_000_000_000_220),
 		},
 	}
 
@@ -113,15 +116,16 @@ func (suite *evmBankKeeperTestSuite) TestGetBalance() {
 			suite.SetupTest()
 
 			suite.FundAccountWithZgChain(suite.Addrs[0], tt.startingAmount)
-			coin := suite.EvmBankKeeper.GetBalance(suite.Ctx, suite.Addrs[0], "neuron")
+			coin := suite.EvmBankKeeper.GetBalance(suite.Ctx, suite.Addrs[0], chaincfg.BaseDenom)
 			suite.Require().Equal(tt.expAmount, coin.Amount)
 		})
 	}
 }
+
 func (suite *evmBankKeeperTestSuite) TestSendCoinsFromModuleToAccount() {
 	startingModuleCoins := sdk.NewCoins(
-		sdk.NewInt64Coin("neuron", 200),
+		sdk.NewInt64Coin(chaincfg.BaseDenom, 200),
-		sdk.NewInt64Coin("ua0gi", 100),
+		sdk.NewInt64Coin(chaincfg.AuxiliaryDenom, 100),
 	)
 	tests := []struct {
 		name           string
@@ -131,102 +135,102 @@ func (suite *evmBankKeeperTestSuite) TestSendCoinsFromModuleToAccount() {
 		hasErr         bool
 	}{
 		{
-			"send more than 1 ua0gi",
+			"send more than 1 auxiliary denom",
-			sdk.NewCoins(sdk.NewCoin("neuron", sdk.NewIntFromBigInt(makeBigIntByString("12000000000010")))),
+			sdk.NewCoins(sdk.NewInt64Coin(chaincfg.BaseDenom, 12_000_000_000_010)),
 			sdk.Coins{},
 			sdk.NewCoins(
-				sdk.NewInt64Coin("neuron", 10),
+				sdk.NewInt64Coin(chaincfg.BaseDenom, 10),
-				sdk.NewInt64Coin("ua0gi", 12),
+				sdk.NewInt64Coin(chaincfg.AuxiliaryDenom, 12),
 			),
 			false,
 		},
 		{
-			"send less than 1 ua0gi",
+			"send less than 1 auxiliary denom",
-			sdk.NewCoins(sdk.NewInt64Coin("neuron", 122)),
+			sdk.NewCoins(sdk.NewInt64Coin(chaincfg.BaseDenom, 122)),
 			sdk.Coins{},
 			sdk.NewCoins(
-				sdk.NewInt64Coin("neuron", 122),
+				sdk.NewInt64Coin(chaincfg.BaseDenom, 122),
-				sdk.NewInt64Coin("ua0gi", 0),
+				sdk.NewInt64Coin(chaincfg.AuxiliaryDenom, 0),
 			),
 			false,
 		},
 		{
-			"send an exact amount of ua0gi",
+			"send an exact amount of auxiliary denom",
-			sdk.NewCoins(sdk.NewCoin("neuron", sdk.NewIntFromBigInt(makeBigIntByString("98000000000000")))),
+			sdk.NewCoins(sdk.NewInt64Coin(chaincfg.BaseDenom, 98_000_000_000_000)),
 			sdk.Coins{},
 			sdk.NewCoins(
-				sdk.NewInt64Coin("neuron", 0),
+				sdk.NewInt64Coin(chaincfg.BaseDenom, 0o0),
-				sdk.NewInt64Coin("ua0gi", 98),
+				sdk.NewInt64Coin(chaincfg.AuxiliaryDenom, 98),
 			),
 			false,
 		},
 		{
-			"send no neuron",
+			"send no base denom",
-			sdk.NewCoins(sdk.NewInt64Coin("neuron", 0)),
+			sdk.NewCoins(sdk.NewInt64Coin(chaincfg.BaseDenom, 0)),
 			sdk.Coins{},
 			sdk.NewCoins(
-				sdk.NewInt64Coin("neuron", 0),
+				sdk.NewInt64Coin(chaincfg.BaseDenom, 0),
-				sdk.NewInt64Coin("ua0gi", 0),
+				sdk.NewInt64Coin(chaincfg.AuxiliaryDenom, 0),
 			),
 			false,
 		},
 		{
 			"errors if sending other coins",
-			sdk.NewCoins(sdk.NewInt64Coin("neuron", 500), sdk.NewInt64Coin("busd", 1000)),
+			sdk.NewCoins(sdk.NewInt64Coin(chaincfg.BaseDenom, 500), sdk.NewInt64Coin("busd", 1000)),
 			sdk.Coins{},
 			sdk.Coins{},
 			true,
 		},
 		{
-			"errors if not enough total neuron to cover",
+			"errors if not enough total base denom to cover",
-			sdk.NewCoins(sdk.NewCoin("neuron", sdk.NewIntFromBigInt(makeBigIntByString("100000000001000")))),
+			sdk.NewCoins(sdk.NewInt64Coin(chaincfg.BaseDenom, 100_000_000_001_000)),
 			sdk.Coins{},
 			sdk.Coins{},
 			true,
 		},
 		{
-			"errors if not enough ua0gi to cover",
+			"errors if not enough auxiliary denom to cover",
-			sdk.NewCoins(sdk.NewCoin("neuron", sdk.NewIntFromBigInt(makeBigIntByString("200000000000000")))),
+			sdk.NewCoins(sdk.NewInt64Coin(chaincfg.BaseDenom, 200_000_000_000_000)),
 			sdk.Coins{},
 			sdk.Coins{},
 			true,
 		},
 		{
-			"converts receiver's neuron to ua0gi if there's enough neuron after the transfer",
+			"converts receiver's base denom to auxiliary denom if there's enough base denom after the transfer",
-			sdk.NewCoins(sdk.NewCoin("neuron", sdk.NewIntFromBigInt(makeBigIntByString("99000000000200")))),
+			sdk.NewCoins(sdk.NewInt64Coin(chaincfg.BaseDenom, 99_000_000_000_200)),
 			sdk.NewCoins(
-				sdk.NewInt64Coin("neuron", 999_999_999_900),
+				sdk.NewInt64Coin(chaincfg.BaseDenom, 999_999_999_900),
-				sdk.NewInt64Coin("ua0gi", 1),
+				sdk.NewInt64Coin(chaincfg.AuxiliaryDenom, 1),
 			),
 			sdk.NewCoins(
-				sdk.NewInt64Coin("neuron", 100),
+				sdk.NewInt64Coin(chaincfg.BaseDenom, 100),
-				sdk.NewInt64Coin("ua0gi", 101),
+				sdk.NewInt64Coin(chaincfg.AuxiliaryDenom, 101),
 			),
 			false,
 		},
 		{
-			"converts all of receiver's neuron to ua0gi even if somehow receiver has more than 1a0gi of neuron",
+			"converts all of receiver's base denom to auxiliary denom even if somehow receiver has more than 1 auxiliary denom of base denom",
-			sdk.NewCoins(sdk.NewCoin("neuron", sdk.NewIntFromBigInt(makeBigIntByString("12000000000100")))),
+			sdk.NewCoins(sdk.NewInt64Coin(chaincfg.BaseDenom, 12_000_000_000_100)),
 			sdk.NewCoins(
-				sdk.NewInt64Coin("neuron", 5_999_999_999_990),
+				sdk.NewInt64Coin(chaincfg.BaseDenom, 5_999_999_999_990),
-				sdk.NewInt64Coin("ua0gi", 1),
+				sdk.NewInt64Coin(chaincfg.AuxiliaryDenom, 1),
 			),
 			sdk.NewCoins(
-				sdk.NewInt64Coin("neuron", 90),
+				sdk.NewInt64Coin(chaincfg.BaseDenom, 90),
-				sdk.NewInt64Coin("ua0gi", 19),
+				sdk.NewInt64Coin(chaincfg.AuxiliaryDenom, 19),
 			),
 			false,
 		},
 		{
-			"swap 1 ua0gi for neuron if module account doesn't have enough neuron",
+			"swap 1 auxiliary denom for base denom if module account doesn't have enough base denom",
-			sdk.NewCoins(sdk.NewCoin("neuron", sdk.NewIntFromBigInt(makeBigIntByString("99000000001000")))),
+			sdk.NewCoins(sdk.NewInt64Coin(chaincfg.BaseDenom, 99_000_000_001_000)),
 			sdk.NewCoins(
-				sdk.NewInt64Coin("neuron", 200),
+				sdk.NewInt64Coin(chaincfg.BaseDenom, 200),
-				sdk.NewInt64Coin("ua0gi", 1),
+				sdk.NewInt64Coin(chaincfg.AuxiliaryDenom, 1),
 			),
 			sdk.NewCoins(
-				sdk.NewInt64Coin("neuron", 1200),
+				sdk.NewInt64Coin(chaincfg.BaseDenom, 1200),
-				sdk.NewInt64Coin("ua0gi", 100),
+				sdk.NewInt64Coin(chaincfg.AuxiliaryDenom, 100),
 			),
 			false,
 		},
@@ -239,8 +243,8 @@ func (suite *evmBankKeeperTestSuite) TestSendCoinsFromModuleToAccount() {
 			suite.FundAccountWithZgChain(suite.Addrs[0], tt.startingAccBal)
 			suite.FundModuleAccountWithZgChain(evmtypes.ModuleName, startingModuleCoins)
 
-			// fund our module with some ua0gi to account for converting extra neuron back to ua0gi
+			// fund our module with some auxiliary denom to account for converting extra base denom back to auxiliary denom
-			suite.FundModuleAccountWithZgChain(types.ModuleName, sdk.NewCoins(sdk.NewInt64Coin("ua0gi", 10)))
+			suite.FundModuleAccountWithZgChain(types.ModuleName, sdk.NewCoins(sdk.NewInt64Coin(chaincfg.AuxiliaryDenom, 10)))
 
 			err := suite.EvmBankKeeper.SendCoinsFromModuleToAccount(suite.Ctx, evmtypes.ModuleName, suite.Addrs[0], tt.sendCoins)
 			if tt.hasErr {
@@ -250,23 +254,24 @@ func (suite *evmBankKeeperTestSuite) TestSendCoinsFromModuleToAccount() {
 				suite.Require().NoError(err)
 			}
 
-			// check ua0gi
+			// check auxiliary denom
-			a0giSender := suite.BankKeeper.GetBalance(suite.Ctx, suite.Addrs[0], "ua0gi")
+			AuxiliaryDenomSender := suite.BankKeeper.GetBalance(suite.Ctx, suite.Addrs[0], chaincfg.AuxiliaryDenom)
-			suite.Require().Equal(tt.expAccBal.AmountOf("ua0gi").Int64(), a0giSender.Amount.Int64())
+			suite.Require().Equal(tt.expAccBal.AmountOf(chaincfg.AuxiliaryDenom).Int64(), AuxiliaryDenomSender.Amount.Int64())
 
-			// check neuron
+			// check base denom
-			actualNeuron := suite.Keeper.GetBalance(suite.Ctx, suite.Addrs[0])
+			actualBaseDenom := suite.Keeper.GetBalance(suite.Ctx, suite.Addrs[0])
-			suite.Require().Equal(tt.expAccBal.AmountOf("neuron").Int64(), actualNeuron.Int64())
+			suite.Require().Equal(tt.expAccBal.AmountOf(chaincfg.BaseDenom).Int64(), actualBaseDenom.Int64())
 		})
 	}
 }
+
 func (suite *evmBankKeeperTestSuite) TestSendCoinsFromAccountToModule() {
 	startingAccCoins := sdk.NewCoins(
-		sdk.NewInt64Coin("neuron", 200),
+		sdk.NewInt64Coin(chaincfg.BaseDenom, 200),
-		sdk.NewInt64Coin("ua0gi", 100),
+		sdk.NewInt64Coin(chaincfg.AuxiliaryDenom, 100),
 	)
 	startingModuleCoins := sdk.NewCoins(
-		sdk.NewInt64Coin("neuron", 100_000_000_000),
+		sdk.NewInt64Coin(chaincfg.BaseDenom, 100_000_000_000),
 	)
 	tests := []struct {
 		name           string
@@ -276,36 +281,36 @@ func (suite *evmBankKeeperTestSuite) TestSendCoinsFromAccountToModule() {
 		hasErr         bool
 	}{
 		{
-			"send more than 1 ua0gi",
+			"send more than 1 auxiliary denom",
-			sdk.NewCoins(sdk.NewCoin("neuron", sdk.NewIntFromBigInt(makeBigIntByString("12000000000010")))),
+			sdk.NewCoins(sdk.NewInt64Coin(chaincfg.BaseDenom, 12_000_000_000_010)),
-			sdk.NewCoins(sdk.NewInt64Coin("neuron", 190), sdk.NewInt64Coin("ua0gi", 88)),
+			sdk.NewCoins(sdk.NewInt64Coin(chaincfg.BaseDenom, 190), sdk.NewInt64Coin(chaincfg.AuxiliaryDenom, 88)),
-			sdk.NewCoins(sdk.NewInt64Coin("neuron", 100_000_000_010), sdk.NewInt64Coin("ua0gi", 12)),
+			sdk.NewCoins(sdk.NewInt64Coin(chaincfg.BaseDenom, 100_000_000_010), sdk.NewInt64Coin(chaincfg.AuxiliaryDenom, 12)),
 			false,
 		},
 		{
-			"send less than 1 ua0gi",
+			"send less than 1 auxiliary denom",
-			sdk.NewCoins(sdk.NewInt64Coin("neuron", 122)),
+			sdk.NewCoins(sdk.NewInt64Coin(chaincfg.BaseDenom, 122)),
-			sdk.NewCoins(sdk.NewInt64Coin("neuron", 78), sdk.NewInt64Coin("ua0gi", 100)),
+			sdk.NewCoins(sdk.NewInt64Coin(chaincfg.BaseDenom, 78), sdk.NewInt64Coin(chaincfg.AuxiliaryDenom, 100)),
-			sdk.NewCoins(sdk.NewInt64Coin("neuron", 100_000_000_122), sdk.NewInt64Coin("ua0gi", 0)),
+			sdk.NewCoins(sdk.NewInt64Coin(chaincfg.BaseDenom, 100_000_000_122), sdk.NewInt64Coin(chaincfg.AuxiliaryDenom, 0)),
 			false,
 		},
 		{
-			"send an exact amount of ua0gi",
+			"send an exact amount of auxiliary denom",
-			sdk.NewCoins(sdk.NewCoin("neuron", sdk.NewIntFromBigInt(makeBigIntByString("98000000000000")))),
+			sdk.NewCoins(sdk.NewInt64Coin(chaincfg.BaseDenom, 98_000_000_000_000)),
-			sdk.NewCoins(sdk.NewInt64Coin("neuron", 200), sdk.NewInt64Coin("ua0gi", 2)),
+			sdk.NewCoins(sdk.NewInt64Coin(chaincfg.BaseDenom, 200), sdk.NewInt64Coin(chaincfg.AuxiliaryDenom, 2)),
-			sdk.NewCoins(sdk.NewInt64Coin("neuron", 100_000_000_000), sdk.NewInt64Coin("ua0gi", 98)),
+			sdk.NewCoins(sdk.NewInt64Coin(chaincfg.BaseDenom, 100_000_000_000), sdk.NewInt64Coin(chaincfg.AuxiliaryDenom, 98)),
 			false,
 		},
 		{
-			"send no neuron",
+			"send no base denom",
-			sdk.NewCoins(sdk.NewInt64Coin("neuron", 0)),
+			sdk.NewCoins(sdk.NewInt64Coin(chaincfg.BaseDenom, 0)),
-			sdk.NewCoins(sdk.NewInt64Coin("neuron", 200), sdk.NewInt64Coin("ua0gi", 100)),
+			sdk.NewCoins(sdk.NewInt64Coin(chaincfg.BaseDenom, 200), sdk.NewInt64Coin(chaincfg.AuxiliaryDenom, 100)),
-			sdk.NewCoins(sdk.NewInt64Coin("neuron", 100_000_000_000), sdk.NewInt64Coin("ua0gi", 0)),
+			sdk.NewCoins(sdk.NewInt64Coin(chaincfg.BaseDenom, 100_000_000_000), sdk.NewInt64Coin(chaincfg.AuxiliaryDenom, 0)),
 			false,
 		},
 		{
 			"errors if sending other coins",
-			sdk.NewCoins(sdk.NewInt64Coin("neuron", 500), sdk.NewInt64Coin("busd", 1000)),
+			sdk.NewCoins(sdk.NewInt64Coin(chaincfg.BaseDenom, 500), sdk.NewInt64Coin("busd", 1000)),
 			sdk.Coins{},
 			sdk.Coins{},
 			true,
@@ -313,39 +318,39 @@ func (suite *evmBankKeeperTestSuite) TestSendCoinsFromAccountToModule() {
 		{
 			"errors if have dup coins",
 			sdk.Coins{
-				sdk.NewInt64Coin("neuron", 12_000_000_000_000),
+				sdk.NewInt64Coin(chaincfg.BaseDenom, 12_000_000_000_000),
-				sdk.NewInt64Coin("neuron", 2_000_000_000_000),
+				sdk.NewInt64Coin(chaincfg.BaseDenom, 2_000_000_000_000),
 			},
 			sdk.Coins{},
 			sdk.Coins{},
 			true,
 		},
 		{
-			"errors if not enough total neuron to cover",
+			"errors if not enough total base denom to cover",
-			sdk.NewCoins(sdk.NewCoin("neuron", sdk.NewIntFromBigInt(makeBigIntByString("100000000001000")))),
+			sdk.NewCoins(sdk.NewInt64Coin(chaincfg.BaseDenom, 100_000_000_001_000)),
 			sdk.Coins{},
 			sdk.Coins{},
 			true,
 		},
 		{
-			"errors if not enough ua0gi to cover",
+			"errors if not enough auxiliary denom to cover",
-			sdk.NewCoins(sdk.NewCoin("neuron", sdk.NewIntFromBigInt(makeBigIntByString("200000000000000")))),
+			sdk.NewCoins(sdk.NewInt64Coin(chaincfg.BaseDenom, 200_000_000_000_000)),
 			sdk.Coins{},
 			sdk.Coins{},
 			true,
 		},
 		{
-			"converts 1 ua0gi to neuron if not enough neuron to cover",
+			"converts 1 auxiliary denom to base denom if not enough base denom to cover",
-			sdk.NewCoins(sdk.NewCoin("neuron", sdk.NewIntFromBigInt(makeBigIntByString("99001000000000")))),
+			sdk.NewCoins(sdk.NewInt64Coin(chaincfg.BaseDenom, 99_001_000_000_000)),
-			sdk.NewCoins(sdk.NewInt64Coin("neuron", 999_000_000_200), sdk.NewInt64Coin("ua0gi", 0)),
+			sdk.NewCoins(sdk.NewInt64Coin(chaincfg.BaseDenom, 999_000_000_200), sdk.NewInt64Coin(chaincfg.AuxiliaryDenom, 0)),
-			sdk.NewCoins(sdk.NewInt64Coin("neuron", 101_000_000_000), sdk.NewInt64Coin("ua0gi", 99)),
+			sdk.NewCoins(sdk.NewInt64Coin(chaincfg.BaseDenom, 101_000_000_000), sdk.NewInt64Coin(chaincfg.AuxiliaryDenom, 99)),
 			false,
 		},
 		{
-			"converts receiver's neuron to ua0gi if there's enough neuron after the transfer",
+			"converts receiver's base denom to auxiliary denom if there's enough base denom after the transfer",
-			sdk.NewCoins(sdk.NewInt64Coin("neuron", 5_900_000_000_200)),
+			sdk.NewCoins(sdk.NewInt64Coin(chaincfg.BaseDenom, 5_900_000_000_200)),
-			sdk.NewCoins(sdk.NewInt64Coin("neuron", 100_000_000_000), sdk.NewInt64Coin("ua0gi", 94)),
+			sdk.NewCoins(sdk.NewInt64Coin(chaincfg.BaseDenom, 100_000_000_000), sdk.NewInt64Coin(chaincfg.AuxiliaryDenom, 94)),
-			sdk.NewCoins(sdk.NewInt64Coin("neuron", 200), sdk.NewInt64Coin("ua0gi", 6)),
+			sdk.NewCoins(sdk.NewInt64Coin(chaincfg.BaseDenom, 200), sdk.NewInt64Coin(chaincfg.AuxiliaryDenom, 6)),
 			false,
 		},
 	}
@@ -365,66 +370,67 @@ func (suite *evmBankKeeperTestSuite) TestSendCoinsFromAccountToModule() {
 			}
 
 			// check sender balance
-			a0giSender := suite.BankKeeper.GetBalance(suite.Ctx, suite.Addrs[0], "ua0gi")
+			AuxiliaryDenomSender := suite.BankKeeper.GetBalance(suite.Ctx, suite.Addrs[0], chaincfg.AuxiliaryDenom)
-			suite.Require().Equal(tt.expSenderCoins.AmountOf("ua0gi").Int64(), a0giSender.Amount.Int64())
+			suite.Require().Equal(tt.expSenderCoins.AmountOf(chaincfg.AuxiliaryDenom).Int64(), AuxiliaryDenomSender.Amount.Int64())
-			actualNeuron := suite.Keeper.GetBalance(suite.Ctx, suite.Addrs[0])
+			actualBaseDenom := suite.Keeper.GetBalance(suite.Ctx, suite.Addrs[0])
-			suite.Require().Equal(tt.expSenderCoins.AmountOf("neuron").Int64(), actualNeuron.Int64())
+			suite.Require().Equal(tt.expSenderCoins.AmountOf(chaincfg.BaseDenom).Int64(), actualBaseDenom.Int64())
 
 			// check module balance
 			moduleAddr := suite.AccountKeeper.GetModuleAddress(evmtypes.ModuleName)
-			a0giSender = suite.BankKeeper.GetBalance(suite.Ctx, moduleAddr, "ua0gi")
+			AuxiliaryDenomSender = suite.BankKeeper.GetBalance(suite.Ctx, moduleAddr, chaincfg.AuxiliaryDenom)
-			suite.Require().Equal(tt.expModuleCoins.AmountOf("ua0gi").Int64(), a0giSender.Amount.Int64())
+			suite.Require().Equal(tt.expModuleCoins.AmountOf(chaincfg.AuxiliaryDenom).Int64(), AuxiliaryDenomSender.Amount.Int64())
-			actualNeuron = suite.Keeper.GetBalance(suite.Ctx, moduleAddr)
+			actualBaseDenom = suite.Keeper.GetBalance(suite.Ctx, moduleAddr)
-			suite.Require().Equal(tt.expModuleCoins.AmountOf("neuron").Int64(), actualNeuron.Int64())
+			suite.Require().Equal(tt.expModuleCoins.AmountOf(chaincfg.BaseDenom).Int64(), actualBaseDenom.Int64())
 		})
 	}
 }
+
 func (suite *evmBankKeeperTestSuite) TestBurnCoins() {
-	startingA0gi := sdkmath.NewInt(100)
+	startingAuxiliaryDenom := sdkmath.NewInt(100)
 	tests := []struct {
-		name        string
+		name              string
-		burnCoins   sdk.Coins
+		burnCoins         sdk.Coins
-		expA0gi     sdkmath.Int
+		expAuxiliaryDenom sdkmath.Int
-		expNeuron   sdkmath.Int
+		expBaseDenom      sdkmath.Int
-		hasErr      bool
+		hasErr            bool
-		neuronStart sdkmath.Int
+		baseDenomStart    sdkmath.Int
 	}{
 		{
-			"burn more than 1 ua0gi",
+			"burn more than 1 auxiliary denom",
-			sdk.NewCoins(sdk.NewCoin("neuron", sdk.NewIntFromBigInt(makeBigIntByString("12021000000002")))),
+			sdk.NewCoins(sdk.NewInt64Coin(chaincfg.BaseDenom, 12_021_000_000_002)),
 			sdkmath.NewInt(88),
 			sdkmath.NewInt(100_000_000_000),
 			false,
-			sdk.NewIntFromBigInt(makeBigIntByString("121000000002")),
+			sdkmath.NewInt(121_000_000_002),
 		},
 		{
-			"burn less than 1 ua0gi",
+			"burn less than 1 auxiliary denom",
-			sdk.NewCoins(sdk.NewInt64Coin("neuron", 122)),
+			sdk.NewCoins(sdk.NewInt64Coin(chaincfg.BaseDenom, 122)),
 			sdkmath.NewInt(100),
 			sdkmath.NewInt(878),
 			false,
 			sdkmath.NewInt(1000),
 		},
 		{
-			"burn an exact amount of ua0gi",
+			"burn an exact amount of auxiliary denom",
-			sdk.NewCoins(sdk.NewCoin("neuron", sdk.NewIntFromBigInt(makeBigIntByString("98000000000000")))),
+			sdk.NewCoins(sdk.NewInt64Coin(chaincfg.BaseDenom, 98_000_000_000_000)),
 			sdkmath.NewInt(2),
 			sdkmath.NewInt(10),
 			false,
 			sdkmath.NewInt(10),
 		},
 		{
-			"burn no neuron",
+			"burn no base denom",
-			sdk.NewCoins(sdk.NewInt64Coin("neuron", 0)),
+			sdk.NewCoins(sdk.NewInt64Coin(chaincfg.BaseDenom, 0)),
-			startingA0gi,
+			startingAuxiliaryDenom,
 			sdk.ZeroInt(),
 			false,
 			sdk.ZeroInt(),
 		},
 		{
 			"errors if burning other coins",
-			sdk.NewCoins(sdk.NewInt64Coin("neuron", 500), sdk.NewInt64Coin("busd", 1000)),
+			sdk.NewCoins(sdk.NewInt64Coin(chaincfg.BaseDenom, 500), sdk.NewInt64Coin("busd", 1000)),
-			startingA0gi,
+			startingAuxiliaryDenom,
 			sdkmath.NewInt(100),
 			true,
 			sdkmath.NewInt(100),
@@ -432,41 +438,41 @@ func (suite *evmBankKeeperTestSuite) TestBurnCoins() {
 		{
 			"errors if have dup coins",
 			sdk.Coins{
-				sdk.NewInt64Coin("neuron", 12_000_000_000_000),
+				sdk.NewInt64Coin(chaincfg.BaseDenom, 12_000_000_000_000),
-				sdk.NewInt64Coin("neuron", 2_000_000_000_000),
+				sdk.NewInt64Coin(chaincfg.BaseDenom, 2_000_000_000_000),
 			},
-			startingA0gi,
+			startingAuxiliaryDenom,
 			sdk.ZeroInt(),
 			true,
 			sdk.ZeroInt(),
 		},
 		{
 			"errors if burn amount is negative",
-			sdk.Coins{sdk.Coin{Denom: "neuron", Amount: sdkmath.NewInt(-100)}},
+			sdk.Coins{sdk.Coin{Denom: chaincfg.BaseDenom, Amount: sdkmath.NewInt(-100)}},
-			startingA0gi,
+			startingAuxiliaryDenom,
 			sdkmath.NewInt(50),
 			true,
 			sdkmath.NewInt(50),
 		},
 		{
-			"errors if not enough neuron to cover burn",
+			"errors if not enough base denom to cover burn",
-			sdk.NewCoins(sdk.NewCoin("neuron", sdk.NewIntFromBigInt(makeBigIntByString("100999000000000")))),
+			sdk.NewCoins(sdk.NewInt64Coin(chaincfg.BaseDenom, 100_999_000_000_000)),
 			sdkmath.NewInt(0),
 			sdkmath.NewInt(99_000_000_000),
 			true,
 			sdkmath.NewInt(99_000_000_000),
 		},
 		{
-			"errors if not enough ua0gi to cover burn",
+			"errors if not enough auxiliary denom to cover burn",
-			sdk.NewCoins(sdk.NewCoin("neuron", sdk.NewIntFromBigInt(makeBigIntByString("200000000000000")))),
+			sdk.NewCoins(sdk.NewInt64Coin(chaincfg.BaseDenom, 200_000_000_000_000)),
 			sdkmath.NewInt(100),
 			sdk.ZeroInt(),
 			true,
 			sdk.ZeroInt(),
 		},
 		{
-			"converts 1 ua0gi to neuron if not enough neuron to cover",
+			"converts 1 auxiliary denom to base denom if not enough base denom to cover",
-			sdk.NewCoins(sdk.NewCoin("neuron", sdk.NewIntFromBigInt(makeBigIntByString("12021000000002")))),
+			sdk.NewCoins(sdk.NewInt64Coin(chaincfg.BaseDenom, 12_021_000_000_002)),
 			sdkmath.NewInt(87),
 			sdkmath.NewInt(980_000_000_000),
 			false,
@@ -478,8 +484,8 @@ func (suite *evmBankKeeperTestSuite) TestBurnCoins() {
 		suite.Run(tt.name, func() {
 			suite.SetupTest()
 			startingCoins := sdk.NewCoins(
-				sdk.NewCoin("ua0gi", startingA0gi),
+				sdk.NewCoin(chaincfg.AuxiliaryDenom, startingAuxiliaryDenom),
-				sdk.NewCoin("neuron", tt.neuronStart),
+				sdk.NewCoin(chaincfg.BaseDenom, tt.baseDenomStart),
 			)
 			suite.FundModuleAccountWithZgChain(evmtypes.ModuleName, startingCoins)
 
@@ -491,52 +497,53 @@ func (suite *evmBankKeeperTestSuite) TestBurnCoins() {
 				suite.Require().NoError(err)
 			}
 
-			// check ua0gi
+			// check auxiliary denom
-			a0giActual := suite.BankKeeper.GetBalance(suite.Ctx, suite.EvmModuleAddr, "ua0gi")
+			AuxiliaryDenomActual := suite.BankKeeper.GetBalance(suite.Ctx, suite.EvmModuleAddr, chaincfg.AuxiliaryDenom)
-			suite.Require().Equal(tt.expA0gi, a0giActual.Amount)
+			suite.Require().Equal(tt.expAuxiliaryDenom, AuxiliaryDenomActual.Amount)
 
-			// check neuron
+			// check base denom
-			neuronActual := suite.Keeper.GetBalance(suite.Ctx, suite.EvmModuleAddr)
+			baseDenomActual := suite.Keeper.GetBalance(suite.Ctx, suite.EvmModuleAddr)
-			suite.Require().Equal(tt.expNeuron, neuronActual)
+			suite.Require().Equal(tt.expBaseDenom, baseDenomActual)
 		})
 	}
 }
+
 func (suite *evmBankKeeperTestSuite) TestMintCoins() {
 	tests := []struct {
-		name        string
+		name              string
-		mintCoins   sdk.Coins
+		mintCoins         sdk.Coins
-		ua0gi       sdkmath.Int
+		AuxiliaryDenomCnt sdkmath.Int
-		neuron      sdkmath.Int
+		baseDenomCnt      sdkmath.Int
-		hasErr      bool
+		hasErr            bool
-		neuronStart sdkmath.Int
+		baseDenomStart    sdkmath.Int
 	}{
 		{
-			"mint more than 1 ua0gi",
+			"mint more than 1 auxiliary denom",
-			sdk.NewCoins(sdk.NewCoin("neuron", sdk.NewIntFromBigInt(makeBigIntByString("12021000000002")))),
+			sdk.NewCoins(sdk.NewInt64Coin(chaincfg.BaseDenom, 12_021_000_000_002)),
 			sdkmath.NewInt(12),
 			sdkmath.NewInt(21_000_000_002),
 			false,
 			sdk.ZeroInt(),
 		},
 		{
-			"mint less than 1 ua0gi",
+			"mint less than 1 auxiliary denom",
-			sdk.NewCoins(sdk.NewInt64Coin("neuron", 901_000_000_001)),
+			sdk.NewCoins(sdk.NewInt64Coin(chaincfg.BaseDenom, 901_000_000_001)),
 			sdk.ZeroInt(),
 			sdkmath.NewInt(901_000_000_001),
 			false,
 			sdk.ZeroInt(),
 		},
 		{
-			"mint an exact amount of ua0gi",
+			"mint an exact amount of auxiliary denom",
-			sdk.NewCoins(sdk.NewCoin("neuron", sdk.NewIntFromBigInt(makeBigIntByString("123000000000000000")))),
+			sdk.NewCoins(sdk.NewInt64Coin(chaincfg.BaseDenom, 123_000_000_000_000_000)),
 			sdkmath.NewInt(123_000),
 			sdk.ZeroInt(),
 			false,
 			sdk.ZeroInt(),
 		},
 		{
-			"mint no neuron",
+			"mint no base denom",
-			sdk.NewCoins(sdk.NewInt64Coin("neuron", 0)),
+			sdk.NewCoins(sdk.NewInt64Coin(chaincfg.BaseDenom, 0)),
 			sdk.ZeroInt(),
 			sdk.ZeroInt(),
 			false,
@@ -544,7 +551,7 @@ func (suite *evmBankKeeperTestSuite) TestMintCoins() {
 		},
 		{
 			"errors if minting other coins",
-			sdk.NewCoins(sdk.NewInt64Coin("neuron", 500), sdk.NewInt64Coin("busd", 1000)),
+			sdk.NewCoins(sdk.NewInt64Coin(chaincfg.BaseDenom, 500), sdk.NewInt64Coin("busd", 1000)),
 			sdk.ZeroInt(),
 			sdkmath.NewInt(100),
 			true,
@@ -553,8 +560,8 @@ func (suite *evmBankKeeperTestSuite) TestMintCoins() {
 		{
 			"errors if have dup coins",
 			sdk.Coins{
-				sdk.NewInt64Coin("neuron", 12_000_000_000_000),
+				sdk.NewInt64Coin(chaincfg.BaseDenom, 12_000_000_000_000),
-				sdk.NewInt64Coin("neuron", 2_000_000_000_000),
+				sdk.NewInt64Coin(chaincfg.BaseDenom, 2_000_000_000_000),
 			},
 			sdk.ZeroInt(),
 			sdk.ZeroInt(),
@@ -563,35 +570,35 @@ func (suite *evmBankKeeperTestSuite) TestMintCoins() {
 		},
 		{
 			"errors if mint amount is negative",
-			sdk.Coins{sdk.Coin{Denom: "neuron", Amount: sdkmath.NewInt(-100)}},
+			sdk.Coins{sdk.Coin{Denom: chaincfg.BaseDenom, Amount: sdkmath.NewInt(-100)}},
 			sdk.ZeroInt(),
 			sdkmath.NewInt(50),
 			true,
 			sdkmath.NewInt(50),
 		},
 		{
-			"adds to existing neuron balance",
+			"adds to existing base denom balance",
-			sdk.NewCoins(sdk.NewCoin("neuron", sdk.NewIntFromBigInt(makeBigIntByString("12021000000002")))),
+			sdk.NewCoins(sdk.NewInt64Coin(chaincfg.BaseDenom, 12_021_000_000_002)),
 			sdkmath.NewInt(12),
 			sdkmath.NewInt(21_000_000_102),
 			false,
 			sdkmath.NewInt(100),
 		},
 		{
-			"convert neuron balance to ua0gi if it exceeds 1 ua0gi",
+			"convert base denom balance to auxiliary denom if it exceeds 1 auxiliary denom",
-			sdk.NewCoins(sdk.NewCoin("neuron", sdk.NewIntFromBigInt(makeBigIntByString("10999000000000")))),
+			sdk.NewCoins(sdk.NewInt64Coin(chaincfg.BaseDenom, 10_999_000_000_000)),
 			sdkmath.NewInt(12),
 			sdkmath.NewInt(1_200_000_001),
 			false,
-			sdkmath.NewIntFromBigInt(makeBigIntByString("1002200000001")),
+			sdkmath.NewInt(1_002_200_000_001),
 		},
 	}
 
 	for _, tt := range tests {
 		suite.Run(tt.name, func() {
 			suite.SetupTest()
-			suite.FundModuleAccountWithZgChain(types.ModuleName, sdk.NewCoins(sdk.NewInt64Coin("ua0gi", 10)))
+			suite.FundModuleAccountWithZgChain(types.ModuleName, sdk.NewCoins(sdk.NewInt64Coin(chaincfg.AuxiliaryDenom, 10)))
-			suite.FundModuleAccountWithZgChain(evmtypes.ModuleName, sdk.NewCoins(sdk.NewCoin("neuron", tt.neuronStart)))
+			suite.FundModuleAccountWithZgChain(evmtypes.ModuleName, sdk.NewCoins(sdk.NewCoin(chaincfg.BaseDenom, tt.baseDenomStart)))
 
 			err := suite.EvmBankKeeper.MintCoins(suite.Ctx, evmtypes.ModuleName, tt.mintCoins)
 			if tt.hasErr {
@@ -601,13 +608,13 @@ func (suite *evmBankKeeperTestSuite) TestMintCoins() {
 				suite.Require().NoError(err)
 			}
 
-			// check ua0gi
+			// check auxiliary denom
-			a0giActual := suite.BankKeeper.GetBalance(suite.Ctx, suite.EvmModuleAddr, "ua0gi")
+			AuxiliaryDenomActual := suite.BankKeeper.GetBalance(suite.Ctx, suite.EvmModuleAddr, chaincfg.AuxiliaryDenom)
-			suite.Require().Equal(tt.ua0gi, a0giActual.Amount)
+			suite.Require().Equal(tt.AuxiliaryDenomCnt, AuxiliaryDenomActual.Amount)
 
-			// check neuron
+			// check base denom
-			neuronActual := suite.Keeper.GetBalance(suite.Ctx, suite.EvmModuleAddr)
+			baseDenomActual := suite.Keeper.GetBalance(suite.Ctx, suite.EvmModuleAddr)
-			suite.Require().Equal(tt.neuron, neuronActual)
+			suite.Require().Equal(tt.baseDenomCnt, baseDenomActual)
 		})
 	}
 }
@@ -620,22 +627,22 @@ func (suite *evmBankKeeperTestSuite) TestValidateEvmCoins() {
 	}{
 		{
 			"valid coins",
-			sdk.NewCoins(sdk.NewInt64Coin("neuron", 500)),
+			sdk.NewCoins(sdk.NewInt64Coin(chaincfg.BaseDenom, 500)),
 			false,
 		},
 		{
 			"dup coins",
-			sdk.Coins{sdk.NewInt64Coin("neuron", 500), sdk.NewInt64Coin("neuron", 500)},
+			sdk.Coins{sdk.NewInt64Coin(chaincfg.BaseDenom, 500), sdk.NewInt64Coin(chaincfg.BaseDenom, 500)},
 			true,
 		},
 		{
 			"not evm coins",
-			sdk.NewCoins(sdk.NewInt64Coin("ua0gi", 500)),
+			sdk.NewCoins(sdk.NewInt64Coin(chaincfg.AuxiliaryDenom, 500)),
 			true,
 		},
 		{
 			"negative coins",
-			sdk.Coins{sdk.Coin{Denom: "neuron", Amount: sdkmath.NewInt(-500)}},
+			sdk.Coins{sdk.Coin{Denom: chaincfg.BaseDenom, Amount: sdkmath.NewInt(-500)}},
 			true,
 		},
 	}
@@ -651,8 +658,8 @@ func (suite *evmBankKeeperTestSuite) TestValidateEvmCoins() {
 	}
 }
 
-func (suite *evmBankKeeperTestSuite) TestConvertOneA0giToNeuronIfNeeded() {
+func (suite *evmBankKeeperTestSuite) TestConvertOneAuxiliaryDenomToBaseDenomIfNeeded() {
-	neuronNeeded := sdkmath.NewInt(200)
+	baseDenomNeeded := sdkmath.NewInt(200)
 	tests := []struct {
 		name          string
 		startingCoins sdk.Coins
@@ -660,21 +667,21 @@ func (suite *evmBankKeeperTestSuite) TestConvertOneA0giToNeuronIfNeeded() {
 		success       bool
 	}{
 		{
-			"not enough ua0gi for conversion",
+			"not enough auxiliary denom for conversion",
-			sdk.NewCoins(sdk.NewInt64Coin("neuron", 100)),
+			sdk.NewCoins(sdk.NewInt64Coin(chaincfg.BaseDenom, 100)),
-			sdk.NewCoins(sdk.NewInt64Coin("neuron", 100)),
+			sdk.NewCoins(sdk.NewInt64Coin(chaincfg.BaseDenom, 100)),
 			false,
 		},
 		{
-			"converts 1 ua0gi to neuron",
+			"converts 1 auxiliary denom to base denom",
-			sdk.NewCoins(sdk.NewInt64Coin("ua0gi", 10), sdk.NewInt64Coin("neuron", 100)),
+			sdk.NewCoins(sdk.NewInt64Coin(chaincfg.AuxiliaryDenom, 10), sdk.NewInt64Coin(chaincfg.BaseDenom, 100)),
-			sdk.NewCoins(sdk.NewInt64Coin("ua0gi", 9), sdk.NewCoin("neuron", sdk.NewIntFromBigInt(makeBigIntByString("1000000000100")))),
+			sdk.NewCoins(sdk.NewInt64Coin(chaincfg.AuxiliaryDenom, 9), sdk.NewInt64Coin(chaincfg.BaseDenom, 1_000_000_000_100)),
 			true,
 		},
 		{
 			"conversion not needed",
-			sdk.NewCoins(sdk.NewInt64Coin("ua0gi", 10), sdk.NewInt64Coin("neuron", 200)),
+			sdk.NewCoins(sdk.NewInt64Coin(chaincfg.AuxiliaryDenom, 10), sdk.NewInt64Coin(chaincfg.BaseDenom, 200)),
-			sdk.NewCoins(sdk.NewInt64Coin("ua0gi", 10), sdk.NewInt64Coin("neuron", 200)),
+			sdk.NewCoins(sdk.NewInt64Coin(chaincfg.AuxiliaryDenom, 10), sdk.NewInt64Coin(chaincfg.BaseDenom, 200)),
 			true,
 		},
 	}
@@ -683,11 +690,11 @@ func (suite *evmBankKeeperTestSuite) TestConvertOneA0giToNeuronIfNeeded() {
 			suite.SetupTest()
 
 			suite.FundAccountWithZgChain(suite.Addrs[0], tt.startingCoins)
-			err := suite.EvmBankKeeper.ConvertOneUa0giToNeuronIfNeeded(suite.Ctx, suite.Addrs[0], neuronNeeded)
+			err := suite.EvmBankKeeper.ConvertOneAuxiliaryDenomToBaseDenomIfNeeded(suite.Ctx, suite.Addrs[0], baseDenomNeeded)
-			moduleZgChain := suite.BankKeeper.GetBalance(suite.Ctx, suite.AccountKeeper.GetModuleAddress(types.ModuleName), "ua0gi")
+			moduleZgChain := suite.BankKeeper.GetBalance(suite.Ctx, suite.AccountKeeper.GetModuleAddress(types.ModuleName), chaincfg.AuxiliaryDenom)
 			if tt.success {
 				suite.Require().NoError(err)
-				if tt.startingCoins.AmountOf("neuron").LT(neuronNeeded) {
+				if tt.startingCoins.AmountOf(chaincfg.BaseDenom).LT(baseDenomNeeded) {
 					suite.Require().Equal(sdk.OneInt(), moduleZgChain.Amount)
 				}
 			} else {
@@ -695,52 +702,54 @@ func (suite *evmBankKeeperTestSuite) TestConvertOneA0giToNeuronIfNeeded() {
 				suite.Require().Equal(sdk.ZeroInt(), moduleZgChain.Amount)
 			}
 
-			neuron := suite.Keeper.GetBalance(suite.Ctx, suite.Addrs[0])
+			baseDenomCnt := suite.Keeper.GetBalance(suite.Ctx, suite.Addrs[0])
-			suite.Require().Equal(tt.expectedCoins.AmountOf("neuron"), neuron)
+			suite.Require().Equal(tt.expectedCoins.AmountOf(chaincfg.BaseDenom), baseDenomCnt)
-			ua0gi := suite.BankKeeper.GetBalance(suite.Ctx, suite.Addrs[0], "ua0gi")
+			AuxiliaryDenomCoin := suite.BankKeeper.GetBalance(suite.Ctx, suite.Addrs[0], chaincfg.AuxiliaryDenom)
-			suite.Require().Equal(tt.expectedCoins.AmountOf("ua0gi"), ua0gi.Amount)
+			suite.Require().Equal(tt.expectedCoins.AmountOf(chaincfg.AuxiliaryDenom), AuxiliaryDenomCoin.Amount)
 		})
 	}
 }
-func (suite *evmBankKeeperTestSuite) TestConvertNeuronToA0gi() {
+
+func (suite *evmBankKeeperTestSuite) TestConvertBaseDenomToAuxiliaryDenom() {
 	tests := []struct {
 		name          string
 		startingCoins sdk.Coins
 		expectedCoins sdk.Coins
 	}{
 		{
-			"not enough ua0gi",
+			"not enough auxiliary denom",
-			sdk.NewCoins(sdk.NewInt64Coin("neuron", 100)),
+			sdk.NewCoins(sdk.NewInt64Coin(chaincfg.BaseDenom, 100)),
-			sdk.NewCoins(sdk.NewInt64Coin("neuron", 100), sdk.NewInt64Coin("ua0gi", 0)),
+			sdk.NewCoins(sdk.NewInt64Coin(chaincfg.BaseDenom, 100), sdk.NewInt64Coin(chaincfg.AuxiliaryDenom, 0)),
 		},
 		{
-			"converts neuron for 1 ua0gi",
+			"converts base denom for 1 auxiliary denom",
-			sdk.NewCoins(sdk.NewInt64Coin("ua0gi", 10), sdk.NewCoin("neuron", sdk.NewIntFromBigInt(makeBigIntByString("1000000000003")))),
+			sdk.NewCoins(sdk.NewInt64Coin(chaincfg.AuxiliaryDenom, 10), sdk.NewInt64Coin(chaincfg.BaseDenom, 1_000_000_000_003)),
-			sdk.NewCoins(sdk.NewInt64Coin("ua0gi", 11), sdk.NewInt64Coin("neuron", 3)),
+			sdk.NewCoins(sdk.NewInt64Coin(chaincfg.AuxiliaryDenom, 11), sdk.NewInt64Coin(chaincfg.BaseDenom, 3)),
 		},
 		{
-			"converts more than 1 ua0gi of neuron",
+			"converts more than 1 auxiliary denom of base denom",
-			sdk.NewCoins(sdk.NewInt64Coin("ua0gi", 10), sdk.NewCoin("neuron", sdk.NewIntFromBigInt(makeBigIntByString("8000000000123")))),
+			sdk.NewCoins(sdk.NewInt64Coin(chaincfg.AuxiliaryDenom, 10), sdk.NewInt64Coin(chaincfg.BaseDenom, 8_000_000_000_123)),
-			sdk.NewCoins(sdk.NewInt64Coin("ua0gi", 18), sdk.NewInt64Coin("neuron", 123)),
+			sdk.NewCoins(sdk.NewInt64Coin(chaincfg.AuxiliaryDenom, 18), sdk.NewInt64Coin(chaincfg.BaseDenom, 123)),
 		},
 	}
 	for _, tt := range tests {
 		suite.Run(tt.name, func() {
 			suite.SetupTest()
 
-			err := suite.App.FundModuleAccount(suite.Ctx, types.ModuleName, sdk.NewCoins(sdk.NewInt64Coin("ua0gi", 10)))
+			err := suite.App.FundModuleAccount(suite.Ctx, types.ModuleName, sdk.NewCoins(sdk.NewInt64Coin(chaincfg.AuxiliaryDenom, 10)))
 			suite.Require().NoError(err)
 			suite.FundAccountWithZgChain(suite.Addrs[0], tt.startingCoins)
-			err = suite.EvmBankKeeper.ConvertNeuronToUa0gi(suite.Ctx, suite.Addrs[0])
+			err = suite.EvmBankKeeper.ConvertBaseDenomToAuxiliaryDenom(suite.Ctx, suite.Addrs[0])
 			suite.Require().NoError(err)
-			neuron := suite.Keeper.GetBalance(suite.Ctx, suite.Addrs[0])
+			baseDenomCnt := suite.Keeper.GetBalance(suite.Ctx, suite.Addrs[0])
-			suite.Require().Equal(tt.expectedCoins.AmountOf("neuron"), neuron)
+			suite.Require().Equal(tt.expectedCoins.AmountOf(chaincfg.BaseDenom), baseDenomCnt)
-			ua0gi := suite.BankKeeper.GetBalance(suite.Ctx, suite.Addrs[0], "ua0gi")
+			AuxiliaryDenomCoin := suite.BankKeeper.GetBalance(suite.Ctx, suite.Addrs[0], chaincfg.AuxiliaryDenom)
-			suite.Require().Equal(tt.expectedCoins.AmountOf("ua0gi"), ua0gi.Amount)
+			suite.Require().Equal(tt.expectedCoins.AmountOf(chaincfg.AuxiliaryDenom), AuxiliaryDenomCoin.Amount)
 		})
 	}
 }
-func (suite *evmBankKeeperTestSuite) TestSplitNeuronCoins() {
+
+func (suite *evmBankKeeperTestSuite) TestSplitBaseDenomCoins() {
 	tests := []struct {
 		name          string
 		coins         sdk.Coins
@@ -749,7 +758,7 @@ func (suite *evmBankKeeperTestSuite) TestSplitNeuronCoins() {
 	}{
 		{
 			"invalid coins",
-			sdk.NewCoins(sdk.NewInt64Coin("ua0gi", 500)),
+			sdk.NewCoins(sdk.NewInt64Coin(chaincfg.AuxiliaryDenom, 500)),
 			nil,
 			true,
 		},
@@ -760,33 +769,33 @@ func (suite *evmBankKeeperTestSuite) TestSplitNeuronCoins() {
 			false,
 		},
 		{
-			"ua0gi & neuron coins",
+			"auxiliary denom & base denom coins",
-			sdk.NewCoins(sdk.NewInt64Coin("neuron", 8_000_000_000_123)),
+			sdk.NewCoins(sdk.NewInt64Coin(chaincfg.BaseDenom, 8_000_000_000_123)),
-			sdk.NewCoins(sdk.NewInt64Coin("ua0gi", 8), sdk.NewInt64Coin("neuron", 123)),
+			sdk.NewCoins(sdk.NewInt64Coin(chaincfg.AuxiliaryDenom, 8), sdk.NewInt64Coin(chaincfg.BaseDenom, 123)),
 			false,
 		},
 		{
-			"only neuron",
+			"only base denom",
-			sdk.NewCoins(sdk.NewInt64Coin("neuron", 10_123)),
+			sdk.NewCoins(sdk.NewInt64Coin(chaincfg.BaseDenom, 10_123)),
-			sdk.NewCoins(sdk.NewInt64Coin("neuron", 10_123)),
+			sdk.NewCoins(sdk.NewInt64Coin(chaincfg.BaseDenom, 10_123)),
 			false,
 		},
 		{
-			"only ua0gi",
+			"only auxiliary denom",
-			sdk.NewCoins(sdk.NewInt64Coin("neuron", 5_000_000_000_000)),
+			sdk.NewCoins(sdk.NewInt64Coin(chaincfg.BaseDenom, 5_000_000_000_000)),
-			sdk.NewCoins(sdk.NewInt64Coin("ua0gi", 5)),
+			sdk.NewCoins(sdk.NewInt64Coin(chaincfg.AuxiliaryDenom, 5)),
 			false,
 		},
 	}
 	for _, tt := range tests {
 		suite.Run(tt.name, func() {
-			ua0gi, neuron, err := keeper.SplitNeuronCoins(tt.coins)
+			AuxiliaryDenomCoin, baseDenomCnt, err := keeper.SplitBaseDenomCoins(tt.coins)
 			if tt.shouldErr {
 				suite.Require().Error(err)
 			} else {
 				suite.Require().NoError(err)
-				suite.Require().Equal(tt.expectedCoins.AmountOf("ua0gi"), ua0gi.Amount)
+				suite.Require().Equal(tt.expectedCoins.AmountOf(chaincfg.AuxiliaryDenom), AuxiliaryDenomCoin.Amount)
-				suite.Require().Equal(tt.expectedCoins.AmountOf("neuron"), neuron)
+				suite.Require().Equal(tt.expectedCoins.AmountOf(chaincfg.BaseDenom), baseDenomCnt)
 			}
 		})
 	}

x/evmutil/keeper/invariants.go

@@ -6,6 +6,7 @@ import (
 	sdk "github.com/cosmos/cosmos-sdk/types"
 	authtypes "github.com/cosmos/cosmos-sdk/x/auth/types"
 
+	"github.com/0glabs/0g-chain/chaincfg"
 	"github.com/0glabs/0g-chain/x/evmutil/types"
 )
 
@@ -50,7 +51,7 @@ func FullyBackedInvariant(bankK types.BankKeeper, k Keeper) sdk.Invariant {
 		})
 
 		bankAddr := authtypes.NewModuleAddress(types.ModuleName)
-		bankBalance := bankK.GetBalance(ctx, bankAddr, CosmosDenom).Amount.Mul(ConversionMultiplier)
+		bankBalance := bankK.GetBalance(ctx, bankAddr, chaincfg.AuxiliaryDenom).Amount.Mul(ConversionMultiplier)
 
 		broken = totalMinorBalances.GT(bankBalance)
 

x/evmutil/keeper/invariants_test.go

@@ -12,6 +12,7 @@ import (
 	"github.com/stretchr/testify/suite"
 
 	"github.com/0glabs/0g-chain/app"
+	"github.com/0glabs/0g-chain/chaincfg"
 	"github.com/0glabs/0g-chain/x/evmutil/keeper"
 	"github.com/0glabs/0g-chain/x/evmutil/testutil"
 	"github.com/0glabs/0g-chain/x/evmutil/types"
@@ -49,7 +50,7 @@ func (suite *invariantTestSuite) SetupValidState() {
 	suite.FundModuleAccountWithZgChain(
 		types.ModuleName,
 		sdk.NewCoins(
-			sdk.NewCoin("ua0gi", sdkmath.NewInt(2)), // ( sum of all minor balances ) / conversion multiplier
+			sdk.NewCoin(chaincfg.AuxiliaryDenom, sdkmath.NewInt(2)), // ( sum of all minor balances ) / conversion multiplier
 		),
 	)
 
@@ -159,8 +160,8 @@ func (suite *invariantTestSuite) TestSmallBalances() {
 
 	// increase minor balance at least above conversion multiplier
 	suite.Keeper.AddBalance(suite.Ctx, suite.Addrs[0], keeper.ConversionMultiplier)
-	// add same number of a0gi to avoid breaking other invariants
+	// add same number of auxiliary denom to avoid breaking other invariants
-	amt := sdk.NewCoins(sdk.NewInt64Coin("ua0gi", 1))
+	amt := sdk.NewCoins(sdk.NewInt64Coin(chaincfg.AuxiliaryDenom, 1))
 	suite.Require().NoError(
 		suite.App.FundModuleAccount(suite.Ctx, types.ModuleName, amt),
 	)

x/evmutil/keeper/keeper.go

@@ -115,7 +115,7 @@ func (k Keeper) SetAccount(ctx sdk.Context, account types.Account) error {
 	return nil
 }
 
-// GetBalance returns the total balance of neuron for a given account by address.
+// GetBalance returns the total balance of base denom for a given account by address.
 func (k Keeper) GetBalance(ctx sdk.Context, addr sdk.AccAddress) sdkmath.Int {
 	account := k.GetAccount(ctx, addr)
 	if account == nil {
@@ -124,7 +124,7 @@ func (k Keeper) GetBalance(ctx sdk.Context, addr sdk.AccAddress) sdkmath.Int {
 	return account.Balance
 }
 
-// SetBalance sets the total balance of neuron for a given account by address.
+// SetBalance sets the total balance of base denom for a given account by address.
 func (k Keeper) SetBalance(ctx sdk.Context, addr sdk.AccAddress, bal sdkmath.Int) error {
 	account := k.GetAccount(ctx, addr)
 	if account == nil {
@@ -140,10 +140,10 @@ func (k Keeper) SetBalance(ctx sdk.Context, addr sdk.AccAddress, bal sdkmath.Int
 	return k.SetAccount(ctx, *account)
 }
 
-// SendBalance transfers the neuron balance from sender addr to recipient addr.
+// SendBalance transfers the base denom balance from sender addr to recipient addr.
 func (k Keeper) SendBalance(ctx sdk.Context, senderAddr sdk.AccAddress, recipientAddr sdk.AccAddress, amt sdkmath.Int) error {
 	if amt.IsNegative() {
-		return fmt.Errorf("cannot send a negative amount of neuron: %d", amt)
+		return fmt.Errorf("cannot send a negative amount of base denom: %d", amt)
 	}
 
 	if amt.IsZero() {
@@ -162,13 +162,13 @@ func (k Keeper) SendBalance(ctx sdk.Context, senderAddr sdk.AccAddress, recipien
 	return k.SetBalance(ctx, recipientAddr, receiverBal)
 }
 
-// AddBalance increments the neuron balance of an address.
+// AddBalance increments the base denom balance of an address.
 func (k Keeper) AddBalance(ctx sdk.Context, addr sdk.AccAddress, amt sdkmath.Int) error {
 	bal := k.GetBalance(ctx, addr)
 	return k.SetBalance(ctx, addr, amt.Add(bal))
 }
 
-// RemoveBalance decrements the neuron balance of an address.
+// RemoveBalance decrements the base denom balance of an address.
 func (k Keeper) RemoveBalance(ctx sdk.Context, addr sdk.AccAddress, amt sdkmath.Int) error {
 	if amt.IsNegative() {
 		return fmt.Errorf("cannot remove a negative amount from balance: %d", amt)

x/evmutil/testutil/suite.go

@@ -37,6 +37,7 @@ import (
 	"github.com/stretchr/testify/suite"
 
 	"github.com/0glabs/0g-chain/app"
+	"github.com/0glabs/0g-chain/chaincfg"
 	"github.com/0glabs/0g-chain/x/evmutil/keeper"
 	"github.com/0glabs/0g-chain/x/evmutil/types"
 )
@@ -81,14 +82,14 @@ func (suite *Suite) SetupTest() {
 	suite.Addrs = addrs
 
 	evmGenesis := evmtypes.DefaultGenesisState()
-	evmGenesis.Params.EvmDenom = keeper.EvmDenom
+	evmGenesis.Params.EvmDenom = chaincfg.BaseDenom
 
 	feemarketGenesis := feemarkettypes.DefaultGenesisState()
 	feemarketGenesis.Params.EnableHeight = 1
 	feemarketGenesis.Params.NoBaseFee = false
 
 	cdc := suite.App.AppCodec()
-	coins := sdk.NewCoins(sdk.NewInt64Coin("ua0gi", 1000_000_000_000))
+	coins := sdk.NewCoins(sdk.NewInt64Coin(chaincfg.AuxiliaryDenom, 1000_000_000_000_000_000))
 	authGS := app.NewFundedGenStateWithSameCoins(cdc, coins, []sdk.AccAddress{
 		sdk.AccAddress(suite.Key1.PubKey().Address()),
 		sdk.AccAddress(suite.Key2.PubKey().Address()),
@@ -185,28 +186,28 @@ func (suite *Suite) ModuleBalance(denom string) sdk.Int {
 }
 
 func (suite *Suite) FundAccountWithZgChain(addr sdk.AccAddress, coins sdk.Coins) {
-	ua0gi := coins.AmountOf("ua0gi")
+	AuxiliaryDenomAmt := coins.AmountOf(chaincfg.AuxiliaryDenom)
-	if ua0gi.IsPositive() {
+	if AuxiliaryDenomAmt.IsPositive() {
-		err := suite.App.FundAccount(suite.Ctx, addr, sdk.NewCoins(sdk.NewCoin("ua0gi", ua0gi)))
+		err := suite.App.FundAccount(suite.Ctx, addr, sdk.NewCoins(sdk.NewCoin(chaincfg.AuxiliaryDenom, AuxiliaryDenomAmt)))
 		suite.Require().NoError(err)
 	}
-	neuron := coins.AmountOf("neuron")
+	baseDenomAmt := coins.AmountOf(chaincfg.BaseDenom)
-	if neuron.IsPositive() {
+	if baseDenomAmt.IsPositive() {
-		err := suite.Keeper.SetBalance(suite.Ctx, addr, neuron)
+		err := suite.Keeper.SetBalance(suite.Ctx, addr, baseDenomAmt)
 		suite.Require().NoError(err)
 	}
 }
 
 func (suite *Suite) FundModuleAccountWithZgChain(moduleName string, coins sdk.Coins) {
-	ua0gi := coins.AmountOf("ua0gi")
+	AuxiliaryDenomAmt := coins.AmountOf(chaincfg.AuxiliaryDenom)
-	if ua0gi.IsPositive() {
+	if AuxiliaryDenomAmt.IsPositive() {
-		err := suite.App.FundModuleAccount(suite.Ctx, moduleName, sdk.NewCoins(sdk.NewCoin("ua0gi", ua0gi)))
+		err := suite.App.FundModuleAccount(suite.Ctx, moduleName, sdk.NewCoins(sdk.NewCoin(chaincfg.AuxiliaryDenom, AuxiliaryDenomAmt)))
 		suite.Require().NoError(err)
 	}
-	neuron := coins.AmountOf("neuron")
+	baseDenomAmt := coins.AmountOf(chaincfg.BaseDenom)
-	if neuron.IsPositive() {
+	if baseDenomAmt.IsPositive() {
 		addr := suite.AccountKeeper.GetModuleAddress(moduleName)
-		err := suite.Keeper.SetBalance(suite.Ctx, addr, neuron)
+		err := suite.Keeper.SetBalance(suite.Ctx, addr, baseDenomAmt)
 		suite.Require().NoError(err)
 	}
 }
@@ -217,7 +218,7 @@ func (suite *Suite) DeployERC20() types.InternalEVMAddress {
 	suite.App.FundModuleAccount(
 		suite.Ctx,
 		types.ModuleName,
-		sdk.NewCoins(sdk.NewCoin("ua0gi", sdkmath.NewInt(0))),
+		sdk.NewCoins(sdk.NewCoin(chaincfg.AuxiliaryDenom, sdkmath.NewInt(0))),
 	)
 
 	contractAddr, err := suite.Keeper.DeployTestMintableERC20Contract(suite.Ctx, "USDC", "USDC", uint8(18))
@@ -318,7 +319,7 @@ func (suite *Suite) SendTx(
 	// Mint the max gas to the FeeCollector to ensure balance in case of refund
 	suite.MintFeeCollector(sdk.NewCoins(
 		sdk.NewCoin(
-			"ua0gi",
+			chaincfg.AuxiliaryDenom,
 			sdkmath.NewInt(baseFee.Int64()*int64(gasRes.Gas*2)),
 		)))
 

x/evmutil/types/conversion_pair.pb.go

@@ -28,7 +28,7 @@ const _ = proto.GoGoProtoPackageIsVersion3 // please upgrade the proto package
 // allowed to be converted between ERC20 and sdk.Coin
 type ConversionPair struct {
 	// ERC20 address of the token on the 0gChain EVM
-	ZgChainERC20Address HexBytes `protobuf:"bytes,1,opt,name=zgChain_erc20_address,json=zgChainErc20Address,proto3,casttype=HexBytes" json:"zgChain_erc20_address,omitempty"`
+	ZgChainERC20Address HexBytes `protobuf:"bytes,1,opt,name=zgchain_erc20_address,json=zgchainErc20Address,proto3,casttype=HexBytes" json:"zgchain_erc20_address,omitempty"`
 	// Denom of the corresponding sdk.Coin
 	Denom string `protobuf:"bytes,2,opt,name=denom,proto3" json:"denom,omitempty"`
 }
@@ -134,20 +134,20 @@ var fileDescriptor_6bad9d4ffa6874ec = []byte{
 	0x62, 0xd2, 0xd5, 0xa9, 0x08, 0x67, 0x2c, 0x92, 0x9e, 0x08, 0xed, 0x09, 0xf1, 0x22, 0x6d, 0x12,
 	0x89, 0x58, 0xa0, 0xda, 0x92, 0x53, 0xad, 0x40, 0xb5, 0x02, 0x6d, 0xd4, 0xb9, 0xe0, 0x22, 0xdb,
 	0xeb, 0xe9, 0x94, 0xa3, 0xed, 0x67, 0x00, 0x0f, 0xcc, 0x9d, 0xe4, 0x8e, 0x78, 0x11, 0x7a, 0x80,
-	0x87, 0x4b, 0x6e, 0x8e, 0x89, 0x17, 0xda, 0x2c, 0xa2, 0x3d, 0xc3, 0x26, 0xae, 0x1b, 0x31, 0x29,
+	0x87, 0x4b, 0x4e, 0xc7, 0xc4, 0x0b, 0x6d, 0x16, 0xd1, 0x9e, 0x61, 0x13, 0xd7, 0x8d, 0x98, 0x94,
-	0x55, 0xd0, 0x02, 0x9d, 0xea, 0xe0, 0x34, 0x59, 0x37, 0x6b, 0xa3, 0x1c, 0x18, 0x5a, 0x66, 0xcf,
+	0x2a, 0x68, 0x81, 0x4e, 0x75, 0x70, 0x9a, 0xac, 0x9b, 0xb5, 0x11, 0x37, 0x53, 0x60, 0x68, 0x99,
-	0xe8, 0xe7, 0xeb, 0x9f, 0x75, 0xb3, 0x72, 0xc3, 0xe6, 0x83, 0x45, 0xcc, 0xa4, 0x55, 0x2b, 0x0c,
+	0x3d, 0xa3, 0x9f, 0xaf, 0x7f, 0xd6, 0xcd, 0xca, 0x0d, 0x9b, 0x0f, 0x16, 0x31, 0x93, 0x56, 0xad,
-	0xc3, 0x54, 0x50, 0x00, 0xa8, 0x0e, 0xff, 0xb9, 0x2c, 0x14, 0x81, 0xfa, 0xa7, 0x05, 0x3a, 0xff,
+	0x30, 0x0c, 0x53, 0x41, 0x01, 0xa0, 0x3a, 0xfc, 0xe7, 0xb2, 0x50, 0x04, 0xea, 0x9f, 0x16, 0xe8,
-	0xad, 0x3c, 0x5c, 0x95, 0x5e, 0xde, 0x9b, 0x4a, 0xfb, 0x15, 0xc0, 0xe3, 0xbe, 0xef, 0x8b, 0x27,
+	0xfc, 0xb7, 0xf2, 0x70, 0x55, 0x7a, 0x79, 0x6f, 0x2a, 0xed, 0x57, 0x00, 0x8f, 0xfb, 0xbe, 0x2f,
-	0xe6, 0x9a, 0x42, 0x06, 0x42, 0x9a, 0xa2, 0xd0, 0xdf, 0x8b, 0x47, 0x16, 0xa2, 0x13, 0x58, 0xa5,
+	0x9e, 0x98, 0x6b, 0x0a, 0x19, 0x08, 0x69, 0x8a, 0x42, 0x7f, 0x2f, 0x1e, 0x59, 0x88, 0x4e, 0x60,
-	0x59, 0x6f, 0xe7, 0x0a, 0x90, 0x29, 0xf6, 0xf2, 0xee, 0x3a, 0xad, 0x10, 0x82, 0xa5, 0x90, 0x04,
+	0x95, 0x66, 0xbd, 0x9d, 0x2b, 0x40, 0xa6, 0xd8, 0xcb, 0xbb, 0xeb, 0xb4, 0x42, 0x08, 0x96, 0x42,
-	0xac, 0xb0, 0x67, 0x33, 0x3a, 0x82, 0x65, 0xb9, 0x08, 0x1c, 0xe1, 0xab, 0x7f, 0xb3, 0xb6, 0x48,
+	0x12, 0xb0, 0xc2, 0x9e, 0xcd, 0xe8, 0x08, 0x96, 0xe5, 0x22, 0x70, 0x84, 0xaf, 0xfe, 0xcd, 0xda,
-	0xa8, 0x01, 0x2b, 0x2e, 0xa3, 0x5e, 0x40, 0x7c, 0xa9, 0x96, 0x5a, 0xa0, 0xb3, 0x6f, 0xed, 0x72,
+	0x22, 0xa1, 0x06, 0xac, 0xb8, 0x8c, 0x7a, 0x01, 0xf1, 0xa5, 0x5a, 0x6a, 0x81, 0xce, 0xbe, 0xb5,
-	0x7e, 0xa0, 0xc1, 0xed, 0xe6, 0x1b, 0x83, 0x8f, 0x04, 0x83, 0xcf, 0x04, 0x83, 0x55, 0x82, 0xc1,
+	0xcb, 0xf9, 0x81, 0x06, 0xb7, 0x9b, 0x6f, 0x0c, 0x3e, 0x12, 0x0c, 0x3e, 0x13, 0x0c, 0x56, 0x09,
-	0x26, 0xc1, 0xe0, 0x6d, 0x8b, 0x95, 0xd5, 0x16, 0x2b, 0x5f, 0x5b, 0xac, 0x8c, 0xce, 0xb9, 0x17,
+	0x06, 0x9b, 0x04, 0x83, 0xb7, 0x2d, 0x56, 0x56, 0x5b, 0xac, 0x7c, 0x6d, 0xb1, 0x32, 0x3a, 0xe7,
-	0x8f, 0xa7, 0x8e, 0x46, 0x45, 0xa0, 0x1b, 0xdc, 0x27, 0x8e, 0xd4, 0x0d, 0x7e, 0x41, 0xd3, 0x6b,
+	0x5e, 0x3c, 0x9e, 0x3a, 0x1a, 0x15, 0x81, 0x6e, 0x70, 0x9f, 0x38, 0x52, 0x37, 0xf8, 0x45, 0x76,
-	0xeb, 0xf3, 0xdd, 0x4f, 0xc5, 0x8b, 0x09, 0x93, 0x4e, 0x39, 0x7b, 0xed, 0xcb, 0xdf, 0x00, 0x00,
+	0x6d, 0x7d, 0xbe, 0xfb, 0xa9, 0x78, 0x31, 0x61, 0xd2, 0x29, 0x67, 0xaf, 0x7d, 0xf9, 0x1b, 0x00,
-	0x00, 0xff, 0xff, 0x25, 0x71, 0x3e, 0xe1, 0xc5, 0x01, 0x00, 0x00,
+	0x00, 0xff, 0xff, 0xfa, 0x07, 0x29, 0xab, 0xc5, 0x01, 0x00, 0x00,
 }
 
 func (this *ConversionPair) VerboseEqual(that interface{}) error {

x/evmutil/types/conversion_pairs_test.go

@@ -3,6 +3,7 @@ package types_test
 import (
 	"testing"
 
+	"github.com/0glabs/0g-chain/chaincfg"
 	"github.com/0glabs/0g-chain/x/evmutil/testutil"
 	"github.com/0glabs/0g-chain/x/evmutil/types"
 	"github.com/stretchr/testify/require"
@@ -142,7 +143,7 @@ func TestConversionPairs_Validate(t *testing.T) {
 				),
 				types.NewConversionPair(
 					testutil.MustNewInternalEVMAddressFromString("0x000000000000000000000000000000000000000A"),
-					"a0gi",
+					chaincfg.AuxiliaryDenom,
 				),
 				types.NewConversionPair(
 					testutil.MustNewInternalEVMAddressFromString("0x000000000000000000000000000000000000000B"),
@@ -162,7 +163,7 @@ func TestConversionPairs_Validate(t *testing.T) {
 				),
 				types.NewConversionPair(
 					testutil.MustNewInternalEVMAddressFromString("0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2"),
-					"a0gi",
+					chaincfg.AuxiliaryDenom,
 				),
 				types.NewConversionPair(
 					testutil.MustNewInternalEVMAddressFromString("0x000000000000000000000000000000000000000B"),
@@ -183,16 +184,16 @@ func TestConversionPairs_Validate(t *testing.T) {
 				),
 				types.NewConversionPair(
 					testutil.MustNewInternalEVMAddressFromString("0x000000000000000000000000000000000000000A"),
-					"a0gi",
+					chaincfg.AuxiliaryDenom,
 				),
 				types.NewConversionPair(
 					testutil.MustNewInternalEVMAddressFromString("0x000000000000000000000000000000000000000B"),
-					"a0gi",
+					chaincfg.AuxiliaryDenom,
 				),
 			),
 			errArgs{
 				expectPass: false,
-				contains:   "found duplicate enabled conversion pair denom a0gi",
+				contains:   "found duplicate enabled conversion pair denom " + chaincfg.AuxiliaryDenom,
 			},
 		},
 		{
@@ -208,7 +209,7 @@ func TestConversionPairs_Validate(t *testing.T) {
 				),
 				types.NewConversionPair(
 					testutil.MustNewInternalEVMAddressFromString("0x000000000000000000000000000000000000000B"),
-					"a0gi",
+					chaincfg.AuxiliaryDenom,
 				),
 			),
 			errArgs{
@@ -240,12 +241,12 @@ func TestAllowedCosmosCoinERC20Token_Validate(t *testing.T) {
 	}{
 		{
 			name:   "valid token",
-			token:  types.NewAllowedCosmosCoinERC20Token("uatom", "0g-wrapped ATOM", "kATOM", 6),
+			token:  types.NewAllowedCosmosCoinERC20Token("uatom", "0gChain-wrapped ATOM", "kATOM", 6),
 			expErr: "",
 		},
 		{
 			name:   "valid - highest allowed decimals",
-			token:  types.NewAllowedCosmosCoinERC20Token("uatom", "0g-wrapped ATOM", "kATOM", 255),
+			token:  types.NewAllowedCosmosCoinERC20Token("uatom", "0gChain-wrapped ATOM", "kATOM", 255),
 			expErr: "",
 		},
 		{
@@ -280,7 +281,7 @@ func TestAllowedCosmosCoinERC20Token_Validate(t *testing.T) {
 		},
 		{
 			name:   "invalid - decimals higher than uint8",
-			token:  types.NewAllowedCosmosCoinERC20Token("uatom", "0g-wrapped ATOM", "kATOM", 256),
+			token:  types.NewAllowedCosmosCoinERC20Token("uatom", "0gChain-wrapped ATOM", "kATOM", 256),
 			expErr: "decimals must be less than 256",
 		},
 	}

x/evmutil/types/params_test.go

@@ -107,11 +107,11 @@ func (suite *ParamsTestSuite) TestParams_Validate() {
 	invalidConversionPairs := types.NewConversionPairs(
 		types.NewConversionPair(
 			testutil.MustNewInternalEVMAddressFromString("0x000000000000000000000000000000000000000A"),
-			"a0gi",
+			chaincfg.AuxiliaryDenom,
 		),
 		types.NewConversionPair(
 			testutil.MustNewInternalEVMAddressFromString("0x000000000000000000000000000000000000000B"),
-			"a0gi", // duplicate denom!
+			chaincfg.AuxiliaryDenom, // duplicate denom!
 		),
 	)
 	validAllowedCosmosDenoms := types.NewAllowedCosmosCoinERC20Tokens(

x/evmutil/types/tx.pb.go

@@ -139,7 +139,7 @@ type MsgConvertERC20ToCoin struct {
 	// 0gChain bech32 address that will receive the converted sdk.Coin.
 	Receiver string `protobuf:"bytes,2,opt,name=receiver,proto3" json:"receiver,omitempty"`
 	// EVM 0x hex address of the ERC20 contract.
-	ZgChainERC20Address string `protobuf:"bytes,3,opt,name=zgChain_erc20_address,json=zgChainErc20Address,proto3" json:"zgChain_erc20_address,omitempty"`
+	ZgChainERC20Address string `protobuf:"bytes,3,opt,name=zgchain_erc20_address,json=zgchainErc20Address,proto3" json:"zgchain_erc20_address,omitempty"`
 	// ERC20 token amount to convert.
 	Amount github_com_cosmos_cosmos_sdk_types.Int `protobuf:"bytes,4,opt,name=amount,proto3,customtype=github.com/cosmos/cosmos-sdk/types.Int" json:"amount"`
 }
@@ -452,7 +452,7 @@ func init() {
 func init() { proto.RegisterFile("zgc/evmutil/v1beta1/tx.proto", fileDescriptor_b60fa1a7a6ac0cc3) }
 
 var fileDescriptor_b60fa1a7a6ac0cc3 = []byte{
-	// 563 bytes of a gzipped FileDescriptorProto
+	// 564 bytes of a gzipped FileDescriptorProto
 	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xc4, 0x55, 0xc1, 0x6e, 0xd3, 0x30,
 	0x18, 0xae, 0xb7, 0x69, 0xa2, 0xe6, 0x96, 0x6e, 0xa2, 0x0b, 0x23, 0x9d, 0x8a, 0x06, 0xd3, 0xa4,
 	0x26, 0x69, 0x40, 0x08, 0x21, 0x2e, 0xb4, 0x1a, 0xd2, 0x04, 0xbb, 0x84, 0x9e, 0x76, 0xa9, 0x92,
@@ -471,24 +471,24 @@ var fileDescriptor_b60fa1a7a6ac0cc3 = []byte{
 	0x6c, 0xdd, 0xb5, 0xd6, 0x74, 0x99, 0x2d, 0xf2, 0x93, 0x9a, 0xd4, 0x23, 0x15, 0xb6, 0x04, 0x36,
 	0x1b, 0xf0, 0x41, 0xa1, 0x3e, 0x1b, 0xf1, 0x21, 0xa3, 0x1c, 0x35, 0xbf, 0x2c, 0xe4, 0x1d, 0xc4,
 	0xb1, 0x1e, 0x8b, 0x80, 0xca, 0xfa, 0x5f, 0x0e, 0xf2, 0x3a, 0x9f, 0x5e, 0xd5, 0x59, 0x62, 0xef,
-	0xd2, 0xc1, 0x1b, 0xb8, 0x3a, 0xc1, 0xdd, 0x03, 0x87, 0xd0, 0x3e, 0x0a, 0x3c, 0xcb, 0xec, 0x3b,
+	0xd2, 0xc1, 0x1b, 0xb8, 0x3a, 0xc1, 0xde, 0x81, 0x43, 0x68, 0x1f, 0x05, 0x9e, 0x65, 0xf6, 0x9d,
-	0x09, 0x30, 0x36, 0x54, 0xed, 0xdc, 0x0b, 0xa7, 0x8d, 0xda, 0x7e, 0x02, 0x88, 0xa5, 0xc8, 0x3c,
+	0x04, 0x18, 0x1b, 0xaa, 0x76, 0xee, 0x85, 0xd3, 0x46, 0x6d, 0x1f, 0x77, 0x23, 0x40, 0x2c, 0x45,
-	0x76, 0x4d, 0xb2, 0x76, 0x22, 0x92, 0xdc, 0x54, 0x7a, 0x59, 0x39, 0x96, 0x62, 0xf6, 0xcb, 0xd3,
+	0xe6, 0xb1, 0x6b, 0x92, 0xb5, 0x13, 0x91, 0xe4, 0xa6, 0xd2, 0xcb, 0xca, 0xb1, 0x14, 0xb3, 0x5f,
-	0x69, 0xa3, 0xf2, 0x73, 0xda, 0x78, 0x84, 0x89, 0x38, 0x18, 0xb9, 0xba, 0xc7, 0x7c, 0x79, 0x87,
+	0x9e, 0x4e, 0x1b, 0x95, 0x9f, 0xd3, 0xc6, 0x23, 0x4c, 0xc4, 0xc1, 0xc8, 0xd5, 0x3d, 0xe6, 0xcb,
-	0xf2, 0xa7, 0xc5, 0x07, 0xef, 0x0d, 0xf1, 0x61, 0x88, 0xb8, 0xbe, 0x4b, 0xc5, 0xf9, 0x49, 0x0b,
+	0x3b, 0x94, 0x3f, 0x2d, 0x3e, 0x78, 0x6f, 0x88, 0x0f, 0x43, 0xc4, 0xf5, 0x5d, 0x2a, 0xce, 0x4f,
-	0x4a, 0xb9, 0xbb, 0x54, 0x14, 0x57, 0x2c, 0x57, 0x8f, 0xac, 0x62, 0x9f, 0x01, 0xbc, 0x9f, 0xaf,
+	0x5a, 0x50, 0xca, 0xdd, 0xa5, 0xa2, 0xb8, 0x62, 0xb9, 0x7a, 0x64, 0x15, 0xfb, 0x0c, 0xe0, 0xfd,
-	0x69, 0x94, 0x21, 0x7f, 0xf3, 0xe5, 0x75, 0xfb, 0xcf, 0xf7, 0xbb, 0x09, 0x1f, 0x96, 0x68, 0xc9,
+	0x7c, 0x4d, 0xa3, 0x0c, 0xf9, 0x9b, 0x2f, 0xaf, 0xdb, 0x7f, 0xbe, 0xdf, 0x4d, 0xf8, 0xb0, 0x44,
-	0x34, 0x1f, 0x83, 0x3f, 0xfb, 0x20, 0xc5, 0xbd, 0x0e, 0x98, 0x7f, 0x0b, 0xaa, 0x1f, 0xc3, 0xcd,
+	0x4b, 0xa6, 0xf9, 0x18, 0xfc, 0xd9, 0x07, 0x29, 0xee, 0x75, 0xc0, 0xfc, 0x5b, 0x50, 0xfd, 0x18,
-	0x52, 0x35, 0xa9, 0x6e, 0xeb, 0xd3, 0x12, 0x5c, 0xdc, 0xe3, 0x58, 0x11, 0x50, 0x29, 0x98, 0xb1,
+	0x6e, 0x96, 0xaa, 0x49, 0x75, 0x5b, 0x9f, 0x96, 0xe0, 0xe2, 0x1e, 0xc7, 0x8a, 0x80, 0x4a, 0xc1,
-	0x6d, 0xbd, 0x60, 0xc8, 0xf5, 0xc2, 0x7e, 0x57, 0xad, 0xeb, 0x63, 0xd3, 0xd3, 0x73, 0xa7, 0xe6,
+	0x8c, 0x6d, 0xeb, 0x05, 0x43, 0xae, 0x17, 0xf6, 0xbb, 0x6a, 0x5d, 0x1f, 0x9b, 0x9e, 0x9e, 0x3b,
-	0xe7, 0x62, 0xde, 0xa9, 0x39, 0xec, 0xdc, 0x53, 0x0b, 0xfa, 0x4b, 0xf9, 0x08, 0x60, 0xfd, 0x9f,
+	0x35, 0x3f, 0x17, 0xf3, 0x4e, 0xcd, 0x61, 0xe7, 0x9e, 0x5a, 0xd0, 0x5f, 0xca, 0x47, 0x00, 0xeb,
-	0xcd, 0x65, 0xce, 0xb5, 0x71, 0x85, 0xa1, 0x3e, 0xbf, 0x29, 0x23, 0x13, 0x72, 0x0c, 0xa0, 0x5a,
+	0xff, 0x6c, 0x2e, 0x73, 0xae, 0x8d, 0x2b, 0x0c, 0xf5, 0xf9, 0x4d, 0x19, 0x99, 0x90, 0x63, 0x00,
-	0xd2, 0x31, 0xd6, 0xb5, 0x13, 0x67, 0x1c, 0xf5, 0xc5, 0xcd, 0x39, 0xa9, 0x9c, 0xce, 0xdb, 0x8b,
+	0xd5, 0x92, 0x8e, 0xb1, 0xae, 0x9d, 0x38, 0xe3, 0xa8, 0x2f, 0x6e, 0xce, 0x49, 0xe5, 0x74, 0xde,
-	0x5f, 0x1a, 0xf8, 0x1e, 0x6a, 0xe0, 0x34, 0xd4, 0xc0, 0x59, 0xa8, 0x81, 0x8b, 0x50, 0x03, 0x5f,
+	0x5e, 0xfc, 0xd2, 0xc0, 0xf7, 0x50, 0x03, 0xa7, 0xa1, 0x06, 0xce, 0x42, 0x0d, 0x5c, 0x84, 0x1a,
-	0x67, 0x5a, 0xe5, 0x6c, 0xa6, 0x55, 0x7e, 0xcc, 0xb4, 0xca, 0xfe, 0x76, 0x6e, 0xf0, 0x4d, 0x7c,
+	0xf8, 0x3a, 0xd3, 0x2a, 0x67, 0x33, 0xad, 0xf2, 0x63, 0xa6, 0x55, 0xf6, 0xb7, 0x73, 0x83, 0x6f,
-	0xe8, 0xb8, 0xdc, 0x30, 0x71, 0xcb, 0x8b, 0x1e, 0x0e, 0xe3, 0x28, 0xfb, 0x54, 0xc4, 0x0f, 0x80,
+	0xe2, 0x43, 0xc7, 0xe5, 0x86, 0x89, 0x5b, 0xf1, 0xc3, 0x61, 0x1c, 0x65, 0x9f, 0x8a, 0xf8, 0x01,
-	0xbb, 0x1c, 0x3f, 0xe0, 0x4f, 0x7e, 0x07, 0x00, 0x00, 0xff, 0xff, 0x6e, 0x5d, 0x0b, 0x0a, 0x46,
+	0x70, 0x97, 0xe3, 0x07, 0xfc, 0xc9, 0xef, 0x00, 0x00, 0x00, 0xff, 0xff, 0x2f, 0xc2, 0xb2, 0xda,
-	0x06, 0x00, 0x00,
+	0x46, 0x06, 0x00, 0x00,
 }
 
 func (this *MsgConvertCoinToERC20) VerboseEqual(that interface{}) error {

x/pricefeed/types/key_test.go

@@ -3,13 +3,14 @@ package types
 import (
 	"testing"
 
+	"github.com/0glabs/0g-chain/chaincfg"
 	sdk "github.com/cosmos/cosmos-sdk/types"
 	"github.com/stretchr/testify/require"
 )
 
 func TestRawPriceKey_Iteration(t *testing.T) {
 	// An iterator key should only match price keys with the same market
-	iteratorKey := RawPriceIteratorKey("a0gi:usd")
+	iteratorKey := RawPriceIteratorKey(chaincfg.AuxiliaryDenom + ":usd")
 
 	addr := sdk.AccAddress("test addr")
 
@@ -20,12 +21,12 @@ func TestRawPriceKey_Iteration(t *testing.T) {
 	}{
 		{
 			name:      "equal marketID is included in iteration",
-			priceKey:  RawPriceKey("a0gi:usd", addr),
+			priceKey:  RawPriceKey(chaincfg.AuxiliaryDenom+":usd", addr),
 			expectErr: false,
 		},
 		{
 			name:      "prefix overlapping marketID excluded from iteration",
-			priceKey:  RawPriceKey("a0gi:usd:30", addr),
+			priceKey:  RawPriceKey(chaincfg.AuxiliaryDenom+":usd:30", addr),
 			expectErr: true,
 		},
 	}