// Copyright 2016 The go-ethereum Authors // This file is part of the go-ethereum library. // // The go-ethereum library is free software: you can redistribute it and/or modify // it under the terms of the GNU Lesser General Public License as published by // the Free Software Foundation, either version 3 of the License, or // (at your option) any later version. // // The go-ethereum library is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU Lesser General Public License for more details. // // You should have received a copy of the GNU Lesser General Public License // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>. package params import ( "encoding/binary" "fmt" "math/big" "github.com/ava-labs/go-ethereum/common" "github.com/ava-labs/go-ethereum/crypto" ) // Genesis hashes to enforce below configs on. var ( MainnetGenesisHash = common.HexToHash("0xd4e56740f876aef8c010b86a40d5f56745a118d0906a34e69aec8c0db1cb8fa3") TestnetGenesisHash = common.HexToHash("0x41941023680923e0fe4d74a34bdac8141f2540e3ae90623718e47d66d1ca4a2d") RinkebyGenesisHash = common.HexToHash("0x6341fd3daf94b748c72ced5a5b26028f2474f5f00d824504e4fa37a75767e177") GoerliGenesisHash = common.HexToHash("0xbf7e331f7f7c1dd2e05159666b3bf8bc7a8a3a9eb1d518969eab529dd9b88c1a") ) // TrustedCheckpoints associates each known checkpoint with the genesis hash of // the chain it belongs to. var TrustedCheckpoints = map[common.Hash]*TrustedCheckpoint{ MainnetGenesisHash: MainnetTrustedCheckpoint, TestnetGenesisHash: TestnetTrustedCheckpoint, RinkebyGenesisHash: RinkebyTrustedCheckpoint, GoerliGenesisHash: GoerliTrustedCheckpoint, } // CheckpointOracles associates each known checkpoint oracles with the genesis hash of // the chain it belongs to. var CheckpointOracles = map[common.Hash]*CheckpointOracleConfig{ MainnetGenesisHash: MainnetCheckpointOracle, TestnetGenesisHash: TestnetCheckpointOracle, RinkebyGenesisHash: RinkebyCheckpointOracle, GoerliGenesisHash: GoerliCheckpointOracle, } var ( // MainnetChainConfig is the chain parameters to run a node on the main network. MainnetChainConfig = &ChainConfig{ ChainID: big.NewInt(1), HomesteadBlock: big.NewInt(1150000), DAOForkBlock: big.NewInt(1920000), DAOForkSupport: true, EIP150Block: big.NewInt(2463000), EIP150Hash: common.HexToHash("0x2086799aeebeae135c246c65021c82b4e15a2c451340993aacfd2751886514f0"), EIP155Block: big.NewInt(2675000), EIP158Block: big.NewInt(2675000), ByzantiumBlock: big.NewInt(4370000), ConstantinopleBlock: big.NewInt(7280000), PetersburgBlock: big.NewInt(7280000), IstanbulBlock: nil, Ethash: new(EthashConfig), } // MainnetTrustedCheckpoint contains the light client trusted checkpoint for the main network. MainnetTrustedCheckpoint = &TrustedCheckpoint{ SectionIndex: 253, SectionHead: common.HexToHash("0xf35fabd036e2030196183bb70ae194f6ce1ea7b58559e3825c168f1df9c0a258"), CHTRoot: common.HexToHash("0x8992849e2be3390696eaf66312626e484045501cd3ec207922c27a6a80a7bb07"), BloomRoot: common.HexToHash("0xcc510b51ca4d73fb3fdf43208d73286f8f23817cdc31b8ea9f4de8d645f07df4"), } // MainnetCheckpointOracle contains a set of configs for the main network oracle. MainnetCheckpointOracle = &CheckpointOracleConfig{ Address: common.HexToAddress("0x9a9070028361F7AAbeB3f2F2Dc07F82C4a98A02a"), Signers: []common.Address{ common.HexToAddress("0x1b2C260efc720BE89101890E4Db589b44E950527"), // Peter common.HexToAddress("0x78d1aD571A1A09D60D9BBf25894b44e4C8859595"), // Martin common.HexToAddress("0x286834935f4A8Cfb4FF4C77D5770C2775aE2b0E7"), // Zsolt common.HexToAddress("0xb86e2B0Ab5A4B1373e40c51A7C712c70Ba2f9f8E"), // Gary common.HexToAddress("0x0DF8fa387C602AE62559cC4aFa4972A7045d6707"), // Guillaume }, Threshold: 2, } // TestnetChainConfig contains the chain parameters to run a node on the Ropsten test network. TestnetChainConfig = &ChainConfig{ ChainID: big.NewInt(3), HomesteadBlock: big.NewInt(0), DAOForkBlock: nil, DAOForkSupport: true, EIP150Block: big.NewInt(0), EIP150Hash: common.HexToHash("0x41941023680923e0fe4d74a34bdac8141f2540e3ae90623718e47d66d1ca4a2d"), EIP155Block: big.NewInt(10), EIP158Block: big.NewInt(10), ByzantiumBlock: big.NewInt(1700000), ConstantinopleBlock: big.NewInt(4230000), PetersburgBlock: big.NewInt(4939394), IstanbulBlock: nil, Ethash: new(EthashConfig), } // TestnetTrustedCheckpoint contains the light client trusted checkpoint for the Ropsten test network. TestnetTrustedCheckpoint = &TrustedCheckpoint{ SectionIndex: 187, SectionHead: common.HexToHash("0x7d6db64d8ec43303e4392fb726d2346f7231b246decca3d8140dd7e2c0d0b07d"), CHTRoot: common.HexToHash("0xa5095e1a004a8642fb93ca682eb91e8f20ef5bce151e47404fbb68772d17705b"), BloomRoot: common.HexToHash("0x90b28050f948ec6fb35b23a91d9aed38ce0c92d3cdd6e1d383c1bddf8b4071cf"), } // TestnetCheckpointOracle contains a set of configs for the Ropsten test network oracle. TestnetCheckpointOracle = &CheckpointOracleConfig{ Address: common.HexToAddress("0xEF79475013f154E6A65b54cB2742867791bf0B84"), Signers: []common.Address{ common.HexToAddress("0x32162F3581E88a5f62e8A61892B42C46E2c18f7b"), // Peter common.HexToAddress("0x78d1aD571A1A09D60D9BBf25894b44e4C8859595"), // Martin common.HexToAddress("0x286834935f4A8Cfb4FF4C77D5770C2775aE2b0E7"), // Zsolt common.HexToAddress("0xb86e2B0Ab5A4B1373e40c51A7C712c70Ba2f9f8E"), // Gary common.HexToAddress("0x0DF8fa387C602AE62559cC4aFa4972A7045d6707"), // Guillaume }, Threshold: 2, } // RinkebyChainConfig contains the chain parameters to run a node on the Rinkeby test network. RinkebyChainConfig = &ChainConfig{ ChainID: big.NewInt(4), HomesteadBlock: big.NewInt(1), DAOForkBlock: nil, DAOForkSupport: true, EIP150Block: big.NewInt(2), EIP150Hash: common.HexToHash("0x9b095b36c15eaf13044373aef8ee0bd3a382a5abb92e402afa44b8249c3a90e9"), EIP155Block: big.NewInt(3), EIP158Block: big.NewInt(3), ByzantiumBlock: big.NewInt(1035301), ConstantinopleBlock: big.NewInt(3660663), PetersburgBlock: big.NewInt(4321234), IstanbulBlock: nil, Clique: &CliqueConfig{ Period: 15, Epoch: 30000, }, } // RinkebyTrustedCheckpoint contains the light client trusted checkpoint for the Rinkeby test network. RinkebyTrustedCheckpoint = &TrustedCheckpoint{ SectionIndex: 148, SectionHead: common.HexToHash("0x45918f4686732c2a3e80827e1bc39cdb6a27fa362ddfe1fdfb61c69a7f1df1a9"), CHTRoot: common.HexToHash("0x8ac7046391fec14834a2a0183513937c0b5f696666545991477d24b067008961"), BloomRoot: common.HexToHash("0xfe4b852517612d7da54bf7e9fc18861a83171a93c72583bb6a61893b74422168"), } // RinkebyCheckpointOracle contains a set of configs for the Rinkeby test network oracle. RinkebyCheckpointOracle = &CheckpointOracleConfig{ Address: common.HexToAddress("0xebe8eFA441B9302A0d7eaECc277c09d20D684540"), Signers: []common.Address{ common.HexToAddress("0xd9c9cd5f6779558b6e0ed4e6acf6b1947e7fa1f3"), // Peter common.HexToAddress("0x78d1aD571A1A09D60D9BBf25894b44e4C8859595"), // Martin common.HexToAddress("0x286834935f4A8Cfb4FF4C77D5770C2775aE2b0E7"), // Zsolt common.HexToAddress("0xb86e2B0Ab5A4B1373e40c51A7C712c70Ba2f9f8E"), // Gary }, Threshold: 2, } // GoerliChainConfig contains the chain parameters to run a node on the Görli test network. GoerliChainConfig = &ChainConfig{ ChainID: big.NewInt(5), HomesteadBlock: big.NewInt(0), DAOForkBlock: nil, DAOForkSupport: true, EIP150Block: big.NewInt(0), EIP155Block: big.NewInt(0), EIP158Block: big.NewInt(0), ByzantiumBlock: big.NewInt(0), ConstantinopleBlock: big.NewInt(0), PetersburgBlock: big.NewInt(0), IstanbulBlock: nil, Clique: &CliqueConfig{ Period: 15, Epoch: 30000, }, } // GoerliTrustedCheckpoint contains the light client trusted checkpoint for the Görli test network. GoerliTrustedCheckpoint = &TrustedCheckpoint{ SectionIndex: 32, SectionHead: common.HexToHash("0x50eaedd8361fa9edd0ac2dec410310b9bdf67b963b60f3b1dce47f84b30670f9"), CHTRoot: common.HexToHash("0x6504db73139f75ffa9102ae980e41b361cf3d5b66cea06c79cde9f457368820c"), BloomRoot: common.HexToHash("0x7551ae027bb776252a20ded51ee2ff0cbfbd1d8d57261b9161cc1f2f80237001"), } // GoerliCheckpointOracle contains a set of configs for the Goerli test network oracle. GoerliCheckpointOracle = &CheckpointOracleConfig{ Address: common.HexToAddress("0x18CA0E045F0D772a851BC7e48357Bcaab0a0795D"), Signers: []common.Address{ common.HexToAddress("0x4769bcaD07e3b938B7f43EB7D278Bc7Cb9efFb38"), // Peter common.HexToAddress("0x78d1aD571A1A09D60D9BBf25894b44e4C8859595"), // Martin common.HexToAddress("0x286834935f4A8Cfb4FF4C77D5770C2775aE2b0E7"), // Zsolt common.HexToAddress("0xb86e2B0Ab5A4B1373e40c51A7C712c70Ba2f9f8E"), // Gary common.HexToAddress("0x0DF8fa387C602AE62559cC4aFa4972A7045d6707"), // Guillaume }, Threshold: 2, } // AllEthashProtocolChanges contains every protocol change (EIPs) introduced // and accepted by the Ethereum core developers into the Ethash consensus. // // This configuration is intentionally not using keyed fields to force anyone // adding flags to the config to also have to set these fields. AllEthashProtocolChanges = &ChainConfig{big.NewInt(1337), big.NewInt(0), nil, false, big.NewInt(0), common.Hash{}, big.NewInt(0), big.NewInt(0), big.NewInt(0), big.NewInt(0), big.NewInt(0), nil, nil, new(EthashConfig), nil} // AllCliqueProtocolChanges contains every protocol change (EIPs) introduced // and accepted by the Ethereum core developers into the Clique consensus. // // This configuration is intentionally not using keyed fields to force anyone // adding flags to the config to also have to set these fields. AllCliqueProtocolChanges = &ChainConfig{big.NewInt(1337), big.NewInt(0), nil, false, big.NewInt(0), common.Hash{}, big.NewInt(0), big.NewInt(0), big.NewInt(0), big.NewInt(0), big.NewInt(0), nil, nil, nil, &CliqueConfig{Period: 0, Epoch: 30000}} TestChainConfig = &ChainConfig{big.NewInt(1), big.NewInt(0), nil, false, big.NewInt(0), common.Hash{}, big.NewInt(0), big.NewInt(0), big.NewInt(0), big.NewInt(0), big.NewInt(0), nil, nil, new(EthashConfig), nil} TestRules = TestChainConfig.Rules(new(big.Int)) ) // TrustedCheckpoint represents a set of post-processed trie roots (CHT and // BloomTrie) associated with the appropriate section index and head hash. It is // used to start light syncing from this checkpoint and avoid downloading the // entire header chain while still being able to securely access old headers/logs. type TrustedCheckpoint struct { SectionIndex uint64 `json:"sectionIndex"` SectionHead common.Hash `json:"sectionHead"` CHTRoot common.Hash `json:"chtRoot"` BloomRoot common.Hash `json:"bloomRoot"` } // HashEqual returns an indicator comparing the itself hash with given one. func (c *TrustedCheckpoint) HashEqual(hash common.Hash) bool { if c.Empty() { return hash == common.Hash{} } return c.Hash() == hash } // Hash returns the hash of checkpoint's four key fields(index, sectionHead, chtRoot and bloomTrieRoot). func (c *TrustedCheckpoint) Hash() common.Hash { buf := make([]byte, 8+3*common.HashLength) binary.BigEndian.PutUint64(buf, c.SectionIndex) copy(buf[8:], c.SectionHead.Bytes()) copy(buf[8+common.HashLength:], c.CHTRoot.Bytes()) copy(buf[8+2*common.HashLength:], c.BloomRoot.Bytes()) return crypto.Keccak256Hash(buf) } // Empty returns an indicator whether the checkpoint is regarded as empty. func (c *TrustedCheckpoint) Empty() bool { return c.SectionHead == (common.Hash{}) || c.CHTRoot == (common.Hash{}) || c.BloomRoot == (common.Hash{}) } // CheckpointOracleConfig represents a set of checkpoint contract(which acts as an oracle) // config which used for light client checkpoint syncing. type CheckpointOracleConfig struct { Address common.Address `json:"address"` Signers []common.Address `json:"signers"` Threshold uint64 `json:"threshold"` } // ChainConfig is the core config which determines the blockchain settings. // // ChainConfig is stored in the database on a per block basis. This means // that any network, identified by its genesis block, can have its own // set of configuration options. type ChainConfig struct { ChainID *big.Int `json:"chainId"` // chainId identifies the current chain and is used for replay protection HomesteadBlock *big.Int `json:"homesteadBlock,omitempty"` // Homestead switch block (nil = no fork, 0 = already homestead) DAOForkBlock *big.Int `json:"daoForkBlock,omitempty"` // TheDAO hard-fork switch block (nil = no fork) DAOForkSupport bool `json:"daoForkSupport,omitempty"` // Whether the nodes supports or opposes the DAO hard-fork // EIP150 implements the Gas price changes (https://github.com/ethereum/EIPs/issues/150) EIP150Block *big.Int `json:"eip150Block,omitempty"` // EIP150 HF block (nil = no fork) EIP150Hash common.Hash `json:"eip150Hash,omitempty"` // EIP150 HF hash (needed for header only clients as only gas pricing changed) EIP155Block *big.Int `json:"eip155Block,omitempty"` // EIP155 HF block EIP158Block *big.Int `json:"eip158Block,omitempty"` // EIP158 HF block ByzantiumBlock *big.Int `json:"byzantiumBlock,omitempty"` // Byzantium switch block (nil = no fork, 0 = already on byzantium) ConstantinopleBlock *big.Int `json:"constantinopleBlock,omitempty"` // Constantinople switch block (nil = no fork, 0 = already activated) PetersburgBlock *big.Int `json:"petersburgBlock,omitempty"` // Petersburg switch block (nil = same as Constantinople) IstanbulBlock *big.Int `json:"istanbulBlock,omitempty"` // Istanbul switch block (nil = no fork, 0 = already on istanbul) EWASMBlock *big.Int `json:"ewasmBlock,omitempty"` // EWASM switch block (nil = no fork, 0 = already activated) // Various consensus engines Ethash *EthashConfig `json:"ethash,omitempty"` Clique *CliqueConfig `json:"clique,omitempty"` } // EthashConfig is the consensus engine configs for proof-of-work based sealing. type EthashConfig struct{} // String implements the stringer interface, returning the consensus engine details. func (c *EthashConfig) String() string { return "ethash" } // CliqueConfig is the consensus engine configs for proof-of-authority based sealing. type CliqueConfig struct { Period uint64 `json:"period"` // Number of seconds between blocks to enforce Epoch uint64 `json:"epoch"` // Epoch length to reset votes and checkpoint } // String implements the stringer interface, returning the consensus engine details. func (c *CliqueConfig) String() string { return "clique" } // String implements the fmt.Stringer interface. func (c *ChainConfig) String() string { var engine interface{} switch { case c.Ethash != nil: engine = c.Ethash case c.Clique != nil: engine = c.Clique default: engine = "unknown" } return fmt.Sprintf("{ChainID: %v Homestead: %v DAO: %v DAOSupport: %v EIP150: %v EIP155: %v EIP158: %v Byzantium: %v Constantinople: %v Petersburg: %v Istanbul: %v Engine: %v}", c.ChainID, c.HomesteadBlock, c.DAOForkBlock, c.DAOForkSupport, c.EIP150Block, c.EIP155Block, c.EIP158Block, c.ByzantiumBlock, c.ConstantinopleBlock, c.PetersburgBlock, c.IstanbulBlock, engine, ) } // IsHomestead returns whether num is either equal to the homestead block or greater. func (c *ChainConfig) IsHomestead(num *big.Int) bool { return isForked(c.HomesteadBlock, num) } // IsDAOFork returns whether num is either equal to the DAO fork block or greater. func (c *ChainConfig) IsDAOFork(num *big.Int) bool { return isForked(c.DAOForkBlock, num) } // IsEIP150 returns whether num is either equal to the EIP150 fork block or greater. func (c *ChainConfig) IsEIP150(num *big.Int) bool { return isForked(c.EIP150Block, num) } // IsEIP155 returns whether num is either equal to the EIP155 fork block or greater. func (c *ChainConfig) IsEIP155(num *big.Int) bool { return isForked(c.EIP155Block, num) } // IsEIP158 returns whether num is either equal to the EIP158 fork block or greater. func (c *ChainConfig) IsEIP158(num *big.Int) bool { return isForked(c.EIP158Block, num) } // IsByzantium returns whether num is either equal to the Byzantium fork block or greater. func (c *ChainConfig) IsByzantium(num *big.Int) bool { return isForked(c.ByzantiumBlock, num) } // IsConstantinople returns whether num is either equal to the Constantinople fork block or greater. func (c *ChainConfig) IsConstantinople(num *big.Int) bool { return isForked(c.ConstantinopleBlock, num) } // IsPetersburg returns whether num is either // - equal to or greater than the PetersburgBlock fork block, // - OR is nil, and Constantinople is active func (c *ChainConfig) IsPetersburg(num *big.Int) bool { return isForked(c.PetersburgBlock, num) || c.PetersburgBlock == nil && isForked(c.ConstantinopleBlock, num) } // IsIstanbul returns whether num is either equal to the Istanbul fork block or greater. func (c *ChainConfig) IsIstanbul(num *big.Int) bool { return isForked(c.IstanbulBlock, num) } // IsEWASM returns whether num represents a block number after the EWASM fork func (c *ChainConfig) IsEWASM(num *big.Int) bool { return isForked(c.EWASMBlock, num) } // CheckCompatible checks whether scheduled fork transitions have been imported // with a mismatching chain configuration. func (c *ChainConfig) CheckCompatible(newcfg *ChainConfig, height uint64) *ConfigCompatError { bhead := new(big.Int).SetUint64(height) // Iterate checkCompatible to find the lowest conflict. var lasterr *ConfigCompatError for { err := c.checkCompatible(newcfg, bhead) if err == nil || (lasterr != nil && err.RewindTo == lasterr.RewindTo) { break } lasterr = err bhead.SetUint64(err.RewindTo) } return lasterr } func (c *ChainConfig) checkCompatible(newcfg *ChainConfig, head *big.Int) *ConfigCompatError { if isForkIncompatible(c.HomesteadBlock, newcfg.HomesteadBlock, head) { return newCompatError("Homestead fork block", c.HomesteadBlock, newcfg.HomesteadBlock) } if isForkIncompatible(c.DAOForkBlock, newcfg.DAOForkBlock, head) { return newCompatError("DAO fork block", c.DAOForkBlock, newcfg.DAOForkBlock) } if c.IsDAOFork(head) && c.DAOForkSupport != newcfg.DAOForkSupport { return newCompatError("DAO fork support flag", c.DAOForkBlock, newcfg.DAOForkBlock) } if isForkIncompatible(c.EIP150Block, newcfg.EIP150Block, head) { return newCompatError("EIP150 fork block", c.EIP150Block, newcfg.EIP150Block) } if isForkIncompatible(c.EIP155Block, newcfg.EIP155Block, head) { return newCompatError("EIP155 fork block", c.EIP155Block, newcfg.EIP155Block) } if isForkIncompatible(c.EIP158Block, newcfg.EIP158Block, head) { return newCompatError("EIP158 fork block", c.EIP158Block, newcfg.EIP158Block) } if c.IsEIP158(head) && !configNumEqual(c.ChainID, newcfg.ChainID) { return newCompatError("EIP158 chain ID", c.EIP158Block, newcfg.EIP158Block) } if isForkIncompatible(c.ByzantiumBlock, newcfg.ByzantiumBlock, head) { return newCompatError("Byzantium fork block", c.ByzantiumBlock, newcfg.ByzantiumBlock) } if isForkIncompatible(c.ConstantinopleBlock, newcfg.ConstantinopleBlock, head) { return newCompatError("Constantinople fork block", c.ConstantinopleBlock, newcfg.ConstantinopleBlock) } if isForkIncompatible(c.PetersburgBlock, newcfg.PetersburgBlock, head) { return newCompatError("Petersburg fork block", c.PetersburgBlock, newcfg.PetersburgBlock) } if isForkIncompatible(c.IstanbulBlock, newcfg.IstanbulBlock, head) { return newCompatError("Istanbul fork block", c.IstanbulBlock, newcfg.IstanbulBlock) } if isForkIncompatible(c.EWASMBlock, newcfg.EWASMBlock, head) { return newCompatError("ewasm fork block", c.EWASMBlock, newcfg.EWASMBlock) } return nil } // isForkIncompatible returns true if a fork scheduled at s1 cannot be rescheduled to // block s2 because head is already past the fork. func isForkIncompatible(s1, s2, head *big.Int) bool { return (isForked(s1, head) || isForked(s2, head)) && !configNumEqual(s1, s2) } // isForked returns whether a fork scheduled at block s is active at the given head block. func isForked(s, head *big.Int) bool { if s == nil || head == nil { return false } return s.Cmp(head) <= 0 } func configNumEqual(x, y *big.Int) bool { if x == nil { return y == nil } if y == nil { return x == nil } return x.Cmp(y) == 0 } // ConfigCompatError is raised if the locally-stored blockchain is initialised with a // ChainConfig that would alter the past. type ConfigCompatError struct { What string // block numbers of the stored and new configurations StoredConfig, NewConfig *big.Int // the block number to which the local chain must be rewound to correct the error RewindTo uint64 } func newCompatError(what string, storedblock, newblock *big.Int) *ConfigCompatError { var rew *big.Int switch { case storedblock == nil: rew = newblock case newblock == nil || storedblock.Cmp(newblock) < 0: rew = storedblock default: rew = newblock } err := &ConfigCompatError{what, storedblock, newblock, 0} if rew != nil && rew.Sign() > 0 { err.RewindTo = rew.Uint64() - 1 } return err } func (err *ConfigCompatError) Error() string { return fmt.Sprintf("mismatching %s in database (have %d, want %d, rewindto %d)", err.What, err.StoredConfig, err.NewConfig, err.RewindTo) } // Rules wraps ChainConfig and is merely syntactic sugar or can be used for functions // that do not have or require information about the block. // // Rules is a one time interface meaning that it shouldn't be used in between transition // phases. type Rules struct { ChainID *big.Int IsHomestead, IsEIP150, IsEIP155, IsEIP158 bool IsByzantium, IsConstantinople, IsPetersburg, IsIstanbul bool } // Rules ensures c's ChainID is not nil. func (c *ChainConfig) Rules(num *big.Int) Rules { chainID := c.ChainID if chainID == nil { chainID = new(big.Int) } return Rules{ ChainID: new(big.Int).Set(chainID), IsHomestead: c.IsHomestead(num), IsEIP150: c.IsEIP150(num), IsEIP155: c.IsEIP155(num), IsEIP158: c.IsEIP158(num), IsByzantium: c.IsByzantium(num), IsConstantinople: c.IsConstantinople(num), IsPetersburg: c.IsPetersburg(num), IsIstanbul: c.IsIstanbul(num), } }