params

package
v0.7.3 Latest Latest
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 Go to latest Published: Oct 21, 2019 License: GPL-3.0 Imports: 5 Imported by: 0

Documentation

Index

Constants

View Source 
const (
	Von  = 1
	GVon = 1e9
	LAT  = 1e18
)

These are the multipliers for ether denominations. Example: To get the von value of an amount in 'gvon', use 

new(big.Int).Mul(value, big.NewInt(params.GVon))
View Source 
const (
	// BloomBitsBlocks is the number of blocks a single bloom bit section vector
	// contains on the server side.
	BloomBitsBlocks uint64 = 4096

	// BloomBitsBlocksClient is the number of blocks a single bloom bit section vector
	// contains on the light client side
	BloomBitsBlocksClient uint64 = 32768

	// BloomConfirms is the number of confirmation blocks before a bloom section is
	// considered probably final and its rotated bits are calculated.
	BloomConfirms = 256

	// CHTFrequency is the block frequency for creating CHTs
	CHTFrequency = 32768

	// BloomTrieFrequency is the block frequency for creating BloomTrie on both
	// server/client sides.
	BloomTrieFrequency = 32768

	// HelperTrieConfirmations is the number of confirmations before a client is expected
	// to have the given HelperTrie available.
	HelperTrieConfirmations = 2048

	// HelperTrieProcessConfirmations is the number of confirmations before a HelperTrie
	// is generated
	HelperTrieProcessConfirmations = 256
)
View Source 
const (
	GasLimitBoundDivisor uint64 = 256     // The bound divisor of the gas limit, used in update calculations.
	MinGasLimit          uint64 = 5000    // Minimum the gas limit may ever be.
	GenesisGasLimit      uint64 = 4712388 // Gas limit of the Genesis block.

	MaximumExtraDataSize uint64 = 32    // Maximum size extra data may be after Genesis.
	ExpByteGas           uint64 = 10    // Times ceil(log256(exponent)) for the EXP instruction.
	SloadGas             uint64 = 50    // Multiplied by the number of 32-byte words that are copied (round up) for any *COPY operation and added.
	CallValueTransferGas uint64 = 9000  // Paid for CALL when the value transfer is non-zero.
	CallNewAccountGas    uint64 = 25000 // Paid for CALL when the destination address didn't exist prior.
	TxGas                uint64 = 21000 // Per transaction not creating a contract. NOTE: Not payable on data of calls between transactions.
	// todo: pre value: 53000
	TxGasContractCreation uint64 = 53000 // Per transaction that creates a contract. NOTE: Not payable on data of calls between transactions.
	TxDataZeroGas         uint64 = 4     // Per byte of data attached to a transaction that equals zero. NOTE: Not payable on data of calls between transactions.
	QuadCoeffDiv          uint64 = 512   // Divisor for the quadratic particle of the memory cost equation.
	LogDataGas            uint64 = 8     // Per byte in a LOG* operation's data.
	CallStipend           uint64 = 2300  // Free gas given at beginning of call.

	Sha3Gas     uint64 = 30 // Once per SHA3 operation.
	Sha3WordGas uint64 = 6  // Once per word of the SHA3 operation's data.

	SstoreSetGas    uint64 = 20000 // Once per SLOAD operation.
	SstoreResetGas  uint64 = 5000  // Once per SSTORE operation if the zeroness changes from zero.
	SstoreClearGas  uint64 = 5000  // Once per SSTORE operation if the zeroness doesn't change.
	SstoreRefundGas uint64 = 15000 // Once per SSTORE operation if the zeroness changes to zero.

	NetSstoreNoopGas  uint64 = 200   // Once per SSTORE operation if the value doesn't change.
	NetSstoreInitGas  uint64 = 20000 // Once per SSTORE operation from clean zero.
	NetSstoreCleanGas uint64 = 5000  // Once per SSTORE operation from clean non-zero.
	NetSstoreDirtyGas uint64 = 200   // Once per SSTORE operation from dirty.

	NetSstoreClearRefund      uint64 = 15000 // Once per SSTORE operation for clearing an originally existing storage slot
	NetSstoreResetRefund      uint64 = 4800  // Once per SSTORE operation for resetting to the original non-zero value
	NetSstoreResetClearRefund uint64 = 19800 // Once per SSTORE operation for resetting to the original zero value

	JumpdestGas      uint64 = 1     // Refunded gas, once per SSTORE operation if the zeroness changes to zero.
	EpochDuration    uint64 = 30000 // Duration between proof-of-work epochs.
	CallGas          uint64 = 40    // Once per CALL operation & message call transaction.
	CreateDataGas    uint64 = 20    //
	CallCreateDepth  uint64 = 1024  // Maximum depth of call/create stack.
	ExpGas           uint64 = 10    // Once per EXP instruction
	LogGas           uint64 = 375   // Per LOG* operation.
	CopyGas          uint64 = 3     //
	StackLimit       uint64 = 1024  // Maximum size of VM stack allowed.
	TierStepGas      uint64 = 0     // Once per operation, for a selection of them.
	LogTopicGas      uint64 = 375   // Multiplied by the * of the LOG*, per LOG transaction. e.g. LOG0 incurs 0 * c_txLogTopicGas, LOG4 incurs 4 * c_txLogTopicGas.
	CreateGas        uint64 = 32000 // Once per CREATE operation & contract-creation transaction.
	Create2Gas       uint64 = 32000 // Once per CREATE2 operation
	SuicideRefundGas uint64 = 24000 // Refunded following a suicide operation.
	MemoryGas        uint64 = 3     // Times the address of the (highest referenced byte in memory + 1). NOTE: referencing happens on read, write and in instructions such as RETURN and CALL.
	TxDataNonZeroGas uint64 = 68    // Per byte of data attached to a transaction that is not equal to zero. NOTE: Not payable on data of calls between transactions.

	// todo: MAX CODE SIZE. pre value : 24576
	MaxCodeSize = 524288 // Maximum bytecode to permit for a contract

	EcrecoverGas            uint64 = 3000   // Elliptic curve sender recovery gas price
	Sha256BaseGas           uint64 = 60     // Base price for a SHA256 operation
	Sha256PerWordGas        uint64 = 12     // Per-word price for a SHA256 operation
	Ripemd160BaseGas        uint64 = 600    // Base price for a RIPEMD160 operation
	Ripemd160PerWordGas     uint64 = 120    // Per-word price for a RIPEMD160 operation
	IdentityBaseGas         uint64 = 15     // Base price for a data copy operation
	IdentityPerWordGas      uint64 = 3      // Per-work price for a data copy operation
	ModExpQuadCoeffDiv      uint64 = 20     // Divisor for the quadratic particle of the big int modular exponentiation
	Bn256AddGas             uint64 = 500    // Gas needed for an elliptic curve addition
	Bn256ScalarMulGas       uint64 = 40000  // Gas needed for an elliptic curve scalar multiplication
	Bn256PairingBaseGas     uint64 = 100000 // Base price for an elliptic curve pairing check
	Bn256PairingPerPointGas uint64 = 80000  // Per-point price for an elliptic curve pairing check

	StakingGas          uint64 = 6000  // Gas needed for precompiled contract: stakingContract
	CreateStakeGas      uint64 = 32000 // Gas needed for createStaking
	EditCandidatGas     uint64 = 12000 // Gas needed for editCandidate
	IncStakeGas         uint64 = 20000 // Gas needed for increaseStaking
	WithdrewStakeGas    uint64 = 20000 // Gas needed for withdrewStaking
	DelegateGas         uint64 = 16000 // Gas needed for delegate
	WithdrewDelegateGas uint64 = 8000  // Gas needed for withdrewDelegate

	GovGas                   uint64 = 9000   // Gas needed for precompiled contract: govContract
	SubmitTextProposalGas    uint64 = 320000 // Gas needed for submitText
	SubmitVersionProposalGas uint64 = 450000 // Gas needed for submitVersion
	SubmitCancelProposalGas  uint64 = 500000 // Gas needed for submitParam
	VoteGas                  uint64 = 2000   // Gas needed for vote
	DeclareVersionGas        uint64 = 3000   // Gas needed for declareVersion

	SlashingGas              uint64 = 21000 // Gas needed for precompiled contract: slashingContract
	ReportDuplicateSignGas   uint64 = 21000 // Gas needed for ReportDuplicateSign
	DuplicateEvidencesGas    uint64 = 21000 // When reporting, each duplicate sign of evidence requires gas to be consumed
	RestrictingPlanGas       uint64 = 18000 // Gas needed for precompiled contract: restrictingPlanContract
	CreateRestrictingPlanGas uint64 = 8000  // Gas needed for createRestrictingPlan
	ReleasePlanGas           uint64 = 21000 // Gas consumed every time the von of the restrictPlan is released
)
View Source 
const (
	VersionMajor   = 0          // Major version component of the current release
	VersionMinor   = 7          // Minor version component of the current release
	VersionPatch   = 3          // Patch version component of the current release
	VersionMeta    = "unstable" // Version metadata to append to the version string
	GenesisVersion = uint32(0<<16 | 7<<8 | 1)
)

Variables

View Source 
var (
	MainnetGenesisHash = common.HexToHash("0xd4e56740f876aef8c010b86a40d5f56745a118d0906a34e69aec8c0db1cb8fa3")
	TestnetGenesisHash = common.HexToHash("0x41941023680923e0fe4d74a34bdac8141f2540e3ae90623718e47d66d1ca4a2d")
)

Genesis hashes to enforce below configs on.

View Source 
var (

	// MainnetChainConfig is the chain parameters to run a node on the main network.
	MainnetChainConfig = &ChainConfig{
		ChainID:     big.NewInt(101),
		EmptyBlock:  "on",
		EIP155Block: big.NewInt(1),
		Cbft: &CbftConfig{
			InitialNodes:  ConvertNodeUrl(initialMainNetConsensusNodes),
			Amount:        10,
			ValidatorMode: "ppos",
			Period:        20000,
		},
		VMInterpreter: "wasm",
	}

	// MainnetTrustedCheckpoint contains the light client trusted checkpoint for the main network.
	MainnetTrustedCheckpoint = &TrustedCheckpoint{
		Name:         "mainnet",
		SectionIndex: 193,
		SectionHead:  common.HexToHash("0xc2d574295ecedc4d58530ae24c31a5a98be7d2b3327fba0dd0f4ed3913828a55"),
		CHTRoot:      common.HexToHash("0x5d1027dfae688c77376e842679ceada87fd94738feb9b32ef165473bfbbb317b"),
		BloomRoot:    common.HexToHash("0xd38be1a06aabd568e10957fee4fcc523bc64996bcf31bae3f55f86e0a583919f"),
	}

	// TestnetChainConfig contains the chain parameters to run a node on the test network.
	TestnetChainConfig = &ChainConfig{
		ChainID:     big.NewInt(103),
		EmptyBlock:  "on",
		EIP155Block: big.NewInt(1),
		Cbft: &CbftConfig{
			InitialNodes:  ConvertNodeUrl(initialTestnetConsensusNodes),
			Amount:        10,
			ValidatorMode: "ppos",
			Period:        20000,
		},
		VMInterpreter: "wasm",
	}

	// TestnetTrustedCheckpoint contains the light client trusted checkpoint for the test network.
	TestnetTrustedCheckpoint = &TrustedCheckpoint{
		Name:         "testnet",
		SectionIndex: 123,
		SectionHead:  common.HexToHash("0xa372a53decb68ce453da12bea1c8ee7b568b276aa2aab94d9060aa7c81fc3dee"),
		CHTRoot:      common.HexToHash("0x6b02e7fada79cd2a80d4b3623df9c44384d6647fc127462e1c188ccd09ece87b"),
		BloomRoot:    common.HexToHash("0xf2d27490914968279d6377d42868928632573e823b5d1d4a944cba6009e16259"),
	}

	GrapeChainConfig = &ChainConfig{
		ChainID:     big.NewInt(304),
		EmptyBlock:  "on",
		EIP155Block: big.NewInt(3),
		Cbft: &CbftConfig{
			Period: 3,
		},
	}

	// AllEthashProtocolChanges contains every protocol change (EIPs) introduced
	//
	// 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), big.NewInt(0), nil, 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), big.NewInt(0), &CliqueConfig{Period: 0, Epoch: 30000}, nil, ""}

	TestChainConfig = &ChainConfig{big.NewInt(1), "", big.NewInt(0), big.NewInt(0), nil, new(CbftConfig), ""}
)
View Source 
var (
	// GasTableHomestead contain the gas prices for
	// the homestead phase.
	GasTableHomestead = GasTable{
		ExtcodeSize: 20,
		ExtcodeCopy: 20,
		Balance:     20,
		SLoad:       50,
		Calls:       40,
		Suicide:     0,
		ExpByte:     10,
	}

	// GasTableEIP150 contain the gas re-prices for
	// the EIP150 phase.
	GasTableEIP150 = GasTable{
		ExtcodeSize: 700,
		ExtcodeCopy: 700,
		Balance:     400,
		SLoad:       200,
		Calls:       700,
		Suicide:     5000,
		ExpByte:     10,

		CreateBySuicide: 25000,
	}
	// GasTableEIP158 contain the gas re-prices for
	// the EIP155/EIP158 phase.
	GasTableEIP158 = GasTable{
		ExtcodeSize: 700,
		ExtcodeCopy: 700,
		Balance:     400,
		SLoad:       200,
		Calls:       700,
		Suicide:     5000,
		ExpByte:     50,

		CreateBySuicide: 25000,
	}
	// GasTableConstantinople contain the gas re-prices for
	// the constantinople phase.
	GasTableConstantinople = GasTable{
		ExtcodeSize: 700,
		ExtcodeCopy: 700,
		ExtcodeHash: 400,
		Balance:     400,
		SLoad:       200,
		Calls:       700,
		Suicide:     5000,
		ExpByte:     50,

		CreateBySuicide: 25000,
	}
)

Variables containing gas prices for different ethereum phases.

View Source 
var (
	DifficultyBoundDivisor = big.NewInt(2048)   // The bound divisor of the difficulty, used in the update calculations.
	GenesisDifficulty      = big.NewInt(131072) // Difficulty of the Genesis block.
	MinimumDifficulty      = big.NewInt(131072) // The minimum that the difficulty may ever be.
	DurationLimit          = big.NewInt(13)     // The decision boundary on the blocktime duration used to determine whether difficulty should go up or not.

	SubmitTextProposalGasPrice    = big.NewInt(1500000 * 1000000000) // Min gas price for submit a text proposal in Von
	SubmitVersionProposalGasPrice = big.NewInt(2100000 * 1000000000) // Min gas price for submit a version proposal in Von
	SubmitCancelProposalGasPrice  = big.NewInt(3000000 * 1000000000) // Min gas price for submit a cancel proposal in Von
)
View Source 
var DAORefundContract = common.HexToAddress("0xbf4ed7b27f1d666546e30d74d50d173d20bca754")

DAORefundContract is the address of the refund contract to send DAO balances to.

View Source 
var DiscoveryV5Bootnodes = []string{}

DiscoveryV5Bootnodes are the enode URLs of the P2P bootstrap nodes for the experimental RLPx v5 topic-discovery network.

View Source 
var MainnetBootnodes = []string{
	"enode://4b11f1b1269b0d2ad0294a39a6b146574f74f97aa576dfec41f45591872a4ac1017f14e3188fe77984115af714cf9014e1d58f2582268fd03db895e83e089891@40.115.117.118:16789",
	"enode://a7c93028b7075d6cb8b345939511e44949c43bd2a891553dc51edd4bfcc9e9f0e4af1c1ae72c06040f94d2bd81202aac0cac7e1b96025e05fc26a3c9b6469ef3@52.175.21.166:16789",
	"enode://a06721ca35534e06b68bdf25a66cf113feaa170ba07faad915b32de2b1c402b6764b80220136cd92cccdd633f09ff8acbda3f11c54754e9dc5fd4fa02afce915@13.72.228.149:16789",
	"enode://1ce60ab861c13a9d97a8619e850be00728aa78ce59550819e8257b4b5b779ac8a742fc1240c6fc8430e936375f3cbe012a425b21f812f675476a36dee707ad7d@52.233.38.169:16789",
	"enode://ee9655cab5e6a6be56457fc2ab06ed38b05fef8a0f754730e064513aa821ac0bc82ba9c986ef2ceeec69b98651f15a8769a0a085d73e9df1c885f1e253661295@13.235.119.163:16789",
	"enode://3d716e226d2c92f90acad316f641691e76c5562158c8b1e7ba9deb6b26f13bfc0d4d1ce4fb6d196851c6362a2dc8c673ec8c9aef12b82bd9ad2826eb5fc3cb45@18.130.156.184:16789",
	"enode://18bf33a6ef0cdb125f356dbe18489921c288f03245b6b43ff07ca918dc6a57f86fb5958ac79654a774452079b9e889c88d856baaefc8ba0c81620dee149064ed@18.197.168.156:16789",
}

MainnetBootnodes are the enode URLs of the P2P bootstrap nodes running on the main Ethereum network.

View Source 
var TestnetBootnodes = []string{
	"enode://6fbdf43ad1b95fd4d5ecb88946a4efcb5cfb526c1db4683ff7f9898a9a235d97b08f180a076545e622205b9129f3ca7a7a12c701a84d0044f682ae3b4f17f965@40.113.90.184:16789",
	"enode://6886e23fe0602fcdede8e2e5d00f7672255094a47fb79c044a16c41d8ede18ba5de5015cbcc7284658bbd67d94e7da46c7dd3a4979244268e03bda23bcf16475@52.236.129.182:16789",
	"enode://818e750342d00c690f34a32e420985965f32eeb41d8aad20d0cb46caf3b09446b661c4c810088f618048004e00938ab8501a0757fee0febef35db59b57c4e6d4@52.228.24.46:16789",
	"enode://dc2b2a6250cc4b7df75894e488cc83cca2f36fedbf8eea159a76265248e14930f95e2be52564f079e3f508422fdd420d69ea974bbb17b7f5607e55af955d7fb3@51.105.52.146:16789",
	"enode://d5e7124a8ad5ee5d086fe273b2d1988eca7fc8dca5cf8b0f3f78b12446d37cde30934490058344cf3c9f79af6d500ea05819d764a1a56706aab4c5311f860e49@18.196.12.156:16789",
	"enode://c38a7f2f7f5bd559a55530496379d60428717453ae779467e8343239ec0907895ae403284c8d901c3b40499d86fff19054ddd97f813ac8b31d2847fdda909a6d@13.235.239.114:16789",
	"enode://060cbd0ded75d37bea9b7aaa927f09dd353998488c734d83fdcfb5ee0f80ef06b809b2d52ff8124310daafae78ce08e2477d917cbf06406f103c4a827c12cad0@18.139.233.254:16789",
}

TestnetBootnodes are the enode URLs of the P2P bootstrap nodes running on the test network.

View Source 
var TrustedCheckpoints = map[common.Hash]*TrustedCheckpoint{
	MainnetGenesisHash: MainnetTrustedCheckpoint,
	TestnetGenesisHash: TestnetTrustedCheckpoint,
}
View Source 
var Version = func() string {
	return fmt.Sprintf("%d.%d.%d", VersionMajor, VersionMinor, VersionPatch)
}()

Version holds the textual version string.

View Source 
var VersionWithMeta = func() string {
	v := Version
	if VersionMeta != "" {
		v += "-" + VersionMeta
	}
	return v
}()

VersionWithMeta holds the textual version string including the metadata.

Functions

func ArchiveVersion 

func ArchiveVersion(gitCommit string) string

ArchiveVersion holds the textual version string used for Geth archives. e.g. "1.8.11-dea1ce05" for stable releases, or 

"1.8.13-unstable-21c059b6" for unstable releases

func DAODrainList 

func DAODrainList() []common.Address

DAODrainList is the list of accounts whose full balances will be moved into a refund contract at the beginning of the dao-fork block.

func VersionWithCommit 

func VersionWithCommit(gitCommit string) string

Types

type CbftConfig added in v0.7.0 

type CbftConfig struct {
	Period        uint64     `json:"period,omitempty"`        // Number of seconds between blocks to enforce
	Amount        uint32     `json:"amount,omitempty"`        //The maximum number of blocks generated per cycle
	InitialNodes  []CbftNode `json:"initialNodes,omitempty"`  //Genesis consensus node
	ValidatorMode string     `json:"validatorMode,omitempty"` //Validator mode for easy testing
}

type CbftNode added in v0.7.1 

type CbftNode struct {
	Node      discover.Node `json:"node"`
	BlsPubKey bls.PublicKey `json:"blsPubKey"`
}

func ConvertNodeUrl added in v0.7.3 

func ConvertNodeUrl(initialNodes []initNode) []CbftNode

type ChainConfig 

type ChainConfig struct {
	ChainID     *big.Int `json:"chainId"` // chainId identifies the current chain and is used for replay protection
	EmptyBlock  string   `json:"emptyBlock"`
	EIP155Block *big.Int `json:"eip155Block,omitempty"` // EIP155 HF block
	EWASMBlock  *big.Int `json:"ewasmBlock,omitempty"`  // EWASM switch block (nil = no fork, 0 = already activated)
	// Various consensus engines
	Clique *CliqueConfig `json:"clique,omitempty"`
	Cbft   *CbftConfig   `json:"cbft,omitempty"`

	// Various vm interpreter
	VMInterpreter string `json:"interpreter,omitempty"`
}

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.

func (*ChainConfig) CheckCompatible 

func (c *ChainConfig) CheckCompatible(newcfg *ChainConfig, height uint64) *ConfigCompatError

CheckCompatible checks whether scheduled fork transitions have been imported with a mismatching chain configuration.

func (*ChainConfig) GasTable 

func (c *ChainConfig) GasTable(num *big.Int) GasTable

GasTable returns the gas table corresponding to the current phase (homestead or homestead reprice).

The returned GasTable's fields shouldn't, under any circumstances, be changed.

func (*ChainConfig) IsEIP155 

func (c *ChainConfig) IsEIP155(num *big.Int) bool

IsEIP155 returns whether num is either equal to the EIP155 fork block or greater.

func (*ChainConfig) IsEWASM 

func (c *ChainConfig) IsEWASM(num *big.Int) bool

IsEWASM returns whether num represents a block number after the EWASM fork

func (*ChainConfig) Rules 

func (c *ChainConfig) Rules(num *big.Int) Rules

Rules ensures c's ChainID is not nil.

func (*ChainConfig) String 

func (c *ChainConfig) String() string

String implements the fmt.Stringer interface.

type CliqueConfig 

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
}

CliqueConfig is the consensus engine configs for proof-of-authority based sealing.

func (*CliqueConfig) String 

func (c *CliqueConfig) String() string

String implements the stringer interface, returning the consensus engine details.

type ConfigCompatError 

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
}

ConfigCompatError is raised if the locally-stored blockchain is initialised with a ChainConfig that would alter the past.

func (*ConfigCompatError) Error 

func (err *ConfigCompatError) Error() string

type GasTable 

type GasTable struct {
	ExtcodeSize uint64
	ExtcodeCopy uint64
	ExtcodeHash uint64
	Balance     uint64
	SLoad       uint64
	Calls       uint64
	Suicide     uint64

	ExpByte uint64

	// CreateBySuicide occurs when the
	// refunded account is one that does
	// not exist. This logic is similar
	// to call. May be left nil. Nil means
	// not charged.
	CreateBySuicide uint64
}

GasTable organizes gas prices for different ethereum phases.

type ProgramVersion added in v0.7.3 

type ProgramVersion struct {
	Version uint32
	Sign    string
}

type Rules 

type Rules struct {
	ChainID  *big.Int
	IsEIP155 bool
}

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 TrustedCheckpoint 

type TrustedCheckpoint struct {
	Name         string      `json:"-"`
	SectionIndex uint64      `json:"sectionIndex"`
	SectionHead  common.Hash `json:"sectionHead"`
	CHTRoot      common.Hash `json:"chtRoot"`
	BloomRoot    common.Hash `json:"bloomRoot"`
}

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.

Source Files

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