eth2.0-specs/configs/constant_presets/mainnet.yaml

# Mainnet preset
# Note: the intention of this file (for now) is to illustrate what a mainnet configuration could look like.
# Some of these constants may still change before the launch of Phase 0.


# Misc
# ---------------------------------------------------------------
# 2**10 (= 1,024)
SHARD_COUNT: 1024
# 2**7 (= 128)
TARGET_COMMITTEE_SIZE: 128
# 2**12 (= 4,096)
MAX_INDICES_PER_ATTESTATION: 4096
# 2**2 (= 4)
MIN_PER_EPOCH_CHURN_LIMIT: 4
# 2**16 (= 65,536)
CHURN_LIMIT_QUOTIENT: 65536
# Normalizes base rewards
BASE_REWARDS_PER_EPOCH: 5
# See issue 563
SHUFFLE_ROUND_COUNT: 90


# Deposit contract
# ---------------------------------------------------------------
# **TBD**
DEPOSIT_CONTRACT_ADDRESS: 0x1234567890123456789012345678901234567890
# 2**5 (= 32)
DEPOSIT_CONTRACT_TREE_DEPTH: 32


# Gwei values
# ---------------------------------------------------------------
# 2**0 * 10**9 (= 1,000,000,000) Gwei
MIN_DEPOSIT_AMOUNT: 1000000000
# 2**5 * 10**9 (= 32,000,000,000) Gwei
MAX_EFFECTIVE_BALANCE: 32000000000
# 2**4 * 10**9 (= 16,000,000,000) Gwei
EJECTION_BALANCE: 16000000000
# 2**0 * 10**9 (= 1,000,000,000) Gwei
EFFECTIVE_BALANCE_INCREMENT: 1000000000


# Initial values
# ---------------------------------------------------------------
GENESIS_FORK_VERSION: 0x00000000
# 0, GENESIS_EPOCH is derived from this constant
GENESIS_SLOT: 0
# 2**64 - 1
FAR_FUTURE_EPOCH: 18446744073709551615
BLS_WITHDRAWAL_PREFIX_BYTE: 0x00


# Time parameters
# ---------------------------------------------------------------
# 6 seconds 6 seconds
SECONDS_PER_SLOT: 6
# 2**2 (= 4) slots 24 seconds
MIN_ATTESTATION_INCLUSION_DELAY: 4
# 2**6 (= 64) slots 6.4 minutes
SLOTS_PER_EPOCH: 64
# 2**0 (= 1) epochs 6.4 minutes
MIN_SEED_LOOKAHEAD: 1
# 2**2 (= 4) epochs 25.6 minutes
ACTIVATION_EXIT_DELAY: 4
# 2**10 (= 1,024) slots ~1.7 hours
SLOTS_PER_ETH1_VOTING_PERIOD: 1024
# 2**13 (= 8,192) slots ~13 hours
SLOTS_PER_HISTORICAL_ROOT: 8192
# 2**8 (= 256) epochs ~27 hours
MIN_VALIDATOR_WITHDRAWABILITY_DELAY: 256
# 2**11 (= 2,048) epochs 9 days
PERSISTENT_COMMITTEE_PERIOD: 2048
# 2**6 (= 64) epochs ~7 hours
MAX_CROSSLINK_EPOCHS: 64
# 2**2 (= 4) epochs 25.6 minutes
MIN_EPOCHS_TO_INACTIVITY_PENALTY: 4


# State list lengths
# ---------------------------------------------------------------
# 2**13 (= 8,192) epochs ~36 days
LATEST_RANDAO_MIXES_LENGTH: 8192
# 2**13 (= 8,192) epochs ~36 days
LATEST_ACTIVE_INDEX_ROOTS_LENGTH: 8192
# 2**13 (= 8,192) epochs ~36 days
LATEST_SLASHED_EXIT_LENGTH: 8192


# Reward and penalty quotients
# ---------------------------------------------------------------
# 2**5 (= 32)
BASE_REWARD_QUOTIENT: 32
# 2**9 (= 512)
WHISTLEBLOWING_REWARD_QUOTIENT: 512
# 2**3 (= 8)
PROPOSER_REWARD_QUOTIENT: 8
# 2**25 (= 33,554,432)
INACTIVITY_PENALTY_QUOTIENT: 33554432
# 2**5 (= 32)
MIN_SLASHING_PENALTY_QUOTIENT: 32


# Max operations per block
# ---------------------------------------------------------------
# 2**4 (= 16)
MAX_PROPOSER_SLASHINGS: 16
# 2**0 (= 1)
MAX_ATTESTER_SLASHINGS: 1
# 2**7 (= 128)
MAX_ATTESTATIONS: 128
# 2**4 (= 16)
MAX_DEPOSITS: 16
# 2**4 (= 16)
MAX_VOLUNTARY_EXITS: 16
# Originally 2**4 (= 16), disabled for now.
MAX_TRANSFERS: 0


# Signature domains
# ---------------------------------------------------------------
DOMAIN_BEACON_PROPOSER: 0
DOMAIN_RANDAO: 1
DOMAIN_ATTESTATION: 2
DOMAIN_DEPOSIT: 3
DOMAIN_VOLUNTARY_EXIT: 4
DOMAIN_TRANSFER: 5