@lodestar/config
Version:
Chain configuration required for lodestar
176 lines • 6.65 kB
JavaScript
import { PresetName } from "@lodestar/params";
import { fromHex as b } from "@lodestar/utils";
// Mainnet config
// https://github.com/ethereum/consensus-specs/blob/dev/configs/mainnet.yaml
export const chainConfig = {
// Extends the mainnet preset
PRESET_BASE: PresetName.mainnet,
CONFIG_NAME: "mainnet",
// Transition
// Estimated: Sept 15, 2022
TERMINAL_TOTAL_DIFFICULTY: BigInt("58750000000000000000000"),
TERMINAL_BLOCK_HASH: b("0x0000000000000000000000000000000000000000000000000000000000000000"),
TERMINAL_BLOCK_HASH_ACTIVATION_EPOCH: Infinity,
// Genesis
// ---------------------------------------------------------------
// `2**14` (= 16,384)
MIN_GENESIS_ACTIVE_VALIDATOR_COUNT: 16384,
// Dec 1, 2020, 12pm UTC
MIN_GENESIS_TIME: 1606824000,
// Mainnet initial fork version, recommend altering for testnets
GENESIS_FORK_VERSION: b("0x00000000"),
// 604800 seconds (7 days)
GENESIS_DELAY: 604800,
// Forking
// ---------------------------------------------------------------
// Some forks are disabled for now:
// - These may be re-assigned to another fork-version later
// - Temporarily set to max uint64 value: 2**64 - 1
// Altair
ALTAIR_FORK_VERSION: b("0x01000000"),
ALTAIR_FORK_EPOCH: 74240, // Oct 27, 2021, 10:56:23am UTC
// Bellatrix
BELLATRIX_FORK_VERSION: b("0x02000000"),
BELLATRIX_FORK_EPOCH: 144896, // Sept 6, 2022, 11:34:47am UTC
// Capella
CAPELLA_FORK_VERSION: b("0x03000000"),
CAPELLA_FORK_EPOCH: 194048, // April 12 (epoch: 194048 slot: 6209536 UTC: 4/12/2023, 10:27:35 PM)
// Deneb
DENEB_FORK_VERSION: b("0x04000000"),
DENEB_FORK_EPOCH: 269568, // March 13, 2024, 01:55:35pm UTC
// ELECTRA
ELECTRA_FORK_VERSION: b("0x05000000"),
ELECTRA_FORK_EPOCH: 364032, // May 7, 2025, 10:05:11am UTC
// FULU
FULU_FORK_VERSION: b("0x06000000"),
FULU_FORK_EPOCH: 411392, // December 3, 2025, 09:49:11pm UTC
// GLOAS
GLOAS_FORK_VERSION: b("0x07000000"),
GLOAS_FORK_EPOCH: Infinity,
// Time parameters
// ---------------------------------------------------------------
// 12 seconds (DEPRECATED)
SECONDS_PER_SLOT: 12,
// 12000 milliseconds, 12 seconds
SLOT_DURATION_MS: 12000,
// 14 (estimate from Eth1 mainnet)
SECONDS_PER_ETH1_BLOCK: 14,
// 2**8 (= 256) epochs ~27 hours
MIN_VALIDATOR_WITHDRAWABILITY_DELAY: 256,
// 2**6 (= 64) epochs
MIN_BUILDER_WITHDRAWABILITY_DELAY: 64,
// 2**8 (= 256) epochs ~27 hours
SHARD_COMMITTEE_PERIOD: 256,
// 2**11 (= 2,048) Eth1 blocks ~8 hours
ETH1_FOLLOW_DISTANCE: 2048,
// 1667 basis points, ~17% of SLOT_DURATION_MS
PROPOSER_REORG_CUTOFF_BPS: 1667,
// 3333 basis points, ~33% of SLOT_DURATION_MS
ATTESTATION_DUE_BPS: 3333,
// 6667 basis points, ~67% of SLOT_DURATION_MS
AGGREGATE_DUE_BPS: 6667,
// Altair
// 3333 basis points, ~33% of SLOT_DURATION_MS
SYNC_MESSAGE_DUE_BPS: 3333,
// 6667 basis points, ~67% of SLOT_DURATION_MS
CONTRIBUTION_DUE_BPS: 6667,
// 25% of SLOT_DURATION_MS
ATTESTATION_DUE_BPS_GLOAS: 2500,
// 50% of SLOT_DURATION_MS
AGGREGATE_DUE_BPS_GLOAS: 5000,
// 25% of SLOT_DURATION_MS
SYNC_MESSAGE_DUE_BPS_GLOAS: 2500,
// 50% of SLOT_DURATION_MS
CONTRIBUTION_DUE_BPS_GLOAS: 5000,
// 75% of SLOT_DURATION_MS
PAYLOAD_ATTESTATION_DUE_BPS: 7500,
// Validator cycle
// ---------------------------------------------------------------
// 2**2 (= 4)
INACTIVITY_SCORE_BIAS: 4,
// 2**4 (= 16)
INACTIVITY_SCORE_RECOVERY_RATE: 16,
// 2**4 * 10**9 (= 16,000,000,000) Gwei
EJECTION_BALANCE: 16000000000,
// 2**2 (= 4)
MIN_PER_EPOCH_CHURN_LIMIT: 4,
// 2**3 (= 8)
MAX_PER_EPOCH_ACTIVATION_CHURN_LIMIT: 8,
// 2**16 (= 65,536)
CHURN_LIMIT_QUOTIENT: 65536,
// Fork choice
// ---------------------------------------------------------------
// 40%
PROPOSER_SCORE_BOOST: 40,
REORG_HEAD_WEIGHT_THRESHOLD: 20,
REORG_PARENT_WEIGHT_THRESHOLD: 160,
REORG_MAX_EPOCHS_SINCE_FINALIZATION: 2,
// Deposit contract
// ---------------------------------------------------------------
// Ethereum PoW Mainnet
DEPOSIT_CHAIN_ID: 1,
DEPOSIT_NETWORK_ID: 1,
DEPOSIT_CONTRACT_ADDRESS: b("0x00000000219ab540356cBB839Cbe05303d7705Fa"),
// Networking
// ---------------------------------------------------------------
// 10 * 2**20 (= 10,485,760) bytes, 10 MiB
MAX_PAYLOAD_SIZE: 10485760,
// 2**10 (= 1,024) blocks
MAX_REQUEST_BLOCKS: 1024,
// 2**8 (= 256) epochs
EPOCHS_PER_SUBNET_SUBSCRIPTION: 256,
// MIN_VALIDATOR_WITHDRAWABILITY_DELAY + CHURN_LIMIT_QUOTIENT // 2 (= 33,024) epochs
MIN_EPOCHS_FOR_BLOCK_REQUESTS: 33024,
// 2**5 (= 32) slots
ATTESTATION_PROPAGATION_SLOT_RANGE: 32,
// 500ms
MAXIMUM_GOSSIP_CLOCK_DISPARITY: 500,
MESSAGE_DOMAIN_INVALID_SNAPPY: b("0x00000000"),
MESSAGE_DOMAIN_VALID_SNAPPY: b("0x01000000"),
// 2 subnets per node
SUBNETS_PER_NODE: 2,
// Deneb
// 2**7 (= 128)
MAX_REQUEST_BLOCKS_DENEB: 128,
// `2**12` (= 4096 epochs, ~18 days)
MIN_EPOCHS_FOR_BLOB_SIDECARS_REQUESTS: 4096,
BLOB_SIDECAR_SUBNET_COUNT: 6,
MAX_BLOBS_PER_BLOCK: 6,
// MAX_REQUEST_BLOCKS_DENEB * MAX_BLOBS_PER_BLOCK
MAX_REQUEST_BLOB_SIDECARS: 768,
// Electra
// 2**8 * 10**9 (= 256,000,000,000)
MAX_PER_EPOCH_ACTIVATION_EXIT_CHURN_LIMIT: 256000000000,
// 2**7 * 10**9 (= 128,000,000,000)
MIN_PER_EPOCH_CHURN_LIMIT_ELECTRA: 128000000000,
BLOB_SIDECAR_SUBNET_COUNT_ELECTRA: 9,
MAX_BLOBS_PER_BLOCK_ELECTRA: 9,
// MAX_REQUEST_BLOCKS_DENEB * MAX_BLOBS_PER_BLOCK_ELECTRA
MAX_REQUEST_BLOB_SIDECARS_ELECTRA: 1152,
// Fulu
NUMBER_OF_CUSTODY_GROUPS: 128,
DATA_COLUMN_SIDECAR_SUBNET_COUNT: 128,
MAX_REQUEST_DATA_COLUMN_SIDECARS: 16384,
SAMPLES_PER_SLOT: 8,
CUSTODY_REQUIREMENT: 4,
VALIDATOR_CUSTODY_REQUIREMENT: 8,
BALANCE_PER_ADDITIONAL_CUSTODY_GROUP: 32000000000,
// `2**12` (= 4096 epochs, ~18 days)
MIN_EPOCHS_FOR_DATA_COLUMN_SIDECARS_REQUESTS: 4096,
// Gloas
// 2**7 (= 128) payloads
MAX_REQUEST_PAYLOADS: 128,
// Blob Scheduling
// ---------------------------------------------------------------
BLOB_SCHEDULE: [
{
EPOCH: 412672, // December 9, 2025, 02:21:11pm UTC
MAX_BLOBS_PER_BLOCK: 15,
},
{
EPOCH: 419072, // January 7, 2026, 01:01:11am UTC
MAX_BLOBS_PER_BLOCK: 21,
},
],
};
//# sourceMappingURL=mainnet.js.map