nimbus-eth2/beacon_chain/spec/presets/mainnet/phase0_preset.nim

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Nim

# Mainnet preset - Phase0
# https://github.com/ethereum/consensus-specs/blob/v1.3.0-alpha.0/presets/mainnet/phase0.yaml
const
#
# Misc
# ---------------------------------------------------------------
# 2**6 (= 64)
MAX_COMMITTEES_PER_SLOT* {.intdefine.}: uint64 = 64
# 2**7 (= 128)
TARGET_COMMITTEE_SIZE*: uint64 = 128
# 2**11 (= 2,048)
MAX_VALIDATORS_PER_COMMITTEE*: uint64 = 2048
# See issue 563
SHUFFLE_ROUND_COUNT*: uint64 = 90
# 4
HYSTERESIS_QUOTIENT*: uint64 = 4
# 1 (minus 0.25)
HYSTERESIS_DOWNWARD_MULTIPLIER*: uint64 = 1
# 5 (plus 1.25)
HYSTERESIS_UPWARD_MULTIPLIER*: uint64 = 5
# Fork Choice
# ---------------------------------------------------------------
# 2**3 (= 8)
SAFE_SLOTS_TO_UPDATE_JUSTIFIED*: uint64 = 8
# Gwei values
# ---------------------------------------------------------------
# 2**0 * 10**9 (= 1,000,000,000) Gwei
MIN_DEPOSIT_AMOUNT*: uint64 = 1000000000
# 2**5 * 10**9 (= 32,000,000,000) Gwei
MAX_EFFECTIVE_BALANCE*: uint64 = 32000000000'u64
# 2**0 * 10**9 (= 1,000,000,000) Gwei
EFFECTIVE_BALANCE_INCREMENT*: uint64 = 1000000000
# Time parameters
# ---------------------------------------------------------------
# 2**0 (= 1) slots 12 seconds
MIN_ATTESTATION_INCLUSION_DELAY*: uint64 = 1
# 2**5 (= 32) slots 6.4 minutes
SLOTS_PER_EPOCH* {.intdefine.}: uint64 = 32
# 2**0 (= 1) epochs 6.4 minutes
MIN_SEED_LOOKAHEAD*: uint64 = 1
# 2**2 (= 4) epochs 25.6 minutes
MAX_SEED_LOOKAHEAD*: uint64 = 4
# 2**6 (= 64) epochs ~6.8 hours
EPOCHS_PER_ETH1_VOTING_PERIOD*: uint64 = 64
# 2**13 (= 8,192) slots ~27 hours
SLOTS_PER_HISTORICAL_ROOT*: uint64 = 8192
# 2**2 (= 4) epochs 25.6 minutes
MIN_EPOCHS_TO_INACTIVITY_PENALTY*: uint64 = 4
# State list lengths
# ---------------------------------------------------------------
# 2**16 (= 65,536) epochs ~0.8 years
EPOCHS_PER_HISTORICAL_VECTOR*: uint64 = 65536
# 2**13 (= 8,192) epochs ~36 days
EPOCHS_PER_SLASHINGS_VECTOR*: uint64 = 8192
# 2**24 (= 16,777,216) historical roots, ~26,131 years
HISTORICAL_ROOTS_LIMIT*: uint64 = 16777216
# 2**40 (= 1,099,511,627,776) validator spots
VALIDATOR_REGISTRY_LIMIT*: uint64 = 1099511627776'u64
# Reward and penalty quotients
# ---------------------------------------------------------------
# 2**6 (= 64)
BASE_REWARD_FACTOR* {.intdefine.}: uint64 = 64
# 2**9 (= 512)
WHISTLEBLOWER_REWARD_QUOTIENT*: uint64 = 512
# 2**3 (= 8)
PROPOSER_REWARD_QUOTIENT*: uint64 = 8
# 2**26 (= 67,108,864)
INACTIVITY_PENALTY_QUOTIENT*: uint64 = 67108864
# 2**7 (= 128) (lower safety margin at Phase 0 genesis)
MIN_SLASHING_PENALTY_QUOTIENT*: uint64 = 128
# 1 (lower safety margin at Phase 0 genesis)
PROPORTIONAL_SLASHING_MULTIPLIER*: uint64 = 1
# Max operations per block
# ---------------------------------------------------------------
# 2**4 (= 16)
MAX_PROPOSER_SLASHINGS*: uint64 = 16
# 2**1 (= 2)
MAX_ATTESTER_SLASHINGS*: uint64 = 2
# 2**7 (= 128)
MAX_ATTESTATIONS*: uint64 = 128
# 2**4 (= 16)
MAX_DEPOSITS*: uint64 = 16
# 2**4 (= 16)
MAX_VOLUNTARY_EXITS*: uint64 = 16