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ropsten.chain.yml
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# Extends the mainnet preset
PRESET_BASE: 'mainnet'
CONFIG_NAME: 'ropsten'
# Genesis
# ---------------------------------------------------------------
MIN_GENESIS_ACTIVE_VALIDATOR_COUNT: 100000
# Monday, May 30th, 2022 3:00:00 PM +UTC
MIN_GENESIS_TIME: 1653318000
GENESIS_FORK_VERSION: 0x80000069
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: 0x80000070
ALTAIR_FORK_EPOCH: 500
# Merge
BELLATRIX_FORK_VERSION: 0x80000071
BELLATRIX_FORK_EPOCH: 750
TERMINAL_TOTAL_DIFFICULTY: 50000000000000000
TERMINAL_BLOCK_HASH: 0x0000000000000000000000000000000000000000000000000000000000000000
TERMINAL_BLOCK_HASH_ACTIVATION_EPOCH: 18446744073709551615
# Capella
CAPELLA_FORK_VERSION: 0x03001020
CAPELLA_FORK_EPOCH: 18446744073709551615
# Sharding
SHARDING_FORK_VERSION: 0x04001020
SHARDING_FORK_EPOCH: 18446744073709551615
# Time parameters
# ---------------------------------------------------------------
# 12 seconds
SECONDS_PER_SLOT: 12
# 14 (estimate from Eth1 mainnet)
SECONDS_PER_ETH1_BLOCK: 14
# 2**8 (= 256) epochs ~27 hours
MIN_VALIDATOR_WITHDRAWABILITY_DELAY: 256
# 2**8 (= 256) epochs ~27 hours
SHARD_COMMITTEE_PERIOD: 256
# 2**11 (= 2,048) Eth1 blocks ~8 hours
ETH1_FOLLOW_DISTANCE: 2048
# 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**16 (= 65,536)
CHURN_LIMIT_QUOTIENT: 65536
# Fork choice
# ---------------------------------------------------------------
# 40%
PROPOSER_SCORE_BOOST: 40
# Deposit contract
# ---------------------------------------------------------------
DEPOSIT_CHAIN_ID: 3
DEPOSIT_NETWORK_ID: 3
DEPOSIT_CONTRACT_ADDRESS: 0x6f22fFbC56eFF051aECF839396DD1eD9aD6BBA9D
# Mainnet preset - Altair
# Updated penalty values
# ---------------------------------------------------------------
# 3 * 2**24 (= 50,331,648)
INACTIVITY_PENALTY_QUOTIENT_ALTAIR: 50331648
# 2**6 (= 64)
MIN_SLASHING_PENALTY_QUOTIENT_ALTAIR: 64
# 2
PROPORTIONAL_SLASHING_MULTIPLIER_ALTAIR: 2
# Sync committee
# ---------------------------------------------------------------
# 2**9 (= 512)
SYNC_COMMITTEE_SIZE: 512
# 2**8 (= 256)
EPOCHS_PER_SYNC_COMMITTEE_PERIOD: 256
# Sync protocol
# ---------------------------------------------------------------
# 1
MIN_SYNC_COMMITTEE_PARTICIPANTS: 1
# SLOTS_PER_EPOCH * EPOCHS_PER_SYNC_COMMITTEE_PERIOD (= 32 * 256)
UPDATE_TIMEOUT: 8192
# Mainnet preset - Bellatrix
# Updated penalty values
# ---------------------------------------------------------------
# 2**24 (= 16,777,216)
INACTIVITY_PENALTY_QUOTIENT_BELLATRIX: 16777216
# 2**5 (= 32)
MIN_SLASHING_PENALTY_QUOTIENT_BELLATRIX: 32
# 3
PROPORTIONAL_SLASHING_MULTIPLIER_BELLATRIX: 3
# Execution
# ---------------------------------------------------------------
# 2**30 (= 1,073,741,824)
MAX_BYTES_PER_TRANSACTION: 1073741824
# 2**20 (= 1,048,576)
MAX_TRANSACTIONS_PER_PAYLOAD: 1048576
# 2**8 (= 256)
BYTES_PER_LOGS_BLOOM: 256
# 2**5 (= 32)
MAX_EXTRA_DATA_BYTES: 32
# Minimal preset - Capella
# Mainnet preset - Custody Game
# Time parameters
# ---------------------------------------------------------------
# 2**1 (= 2) epochs, 12.8 minutes
RANDAO_PENALTY_EPOCHS: 2
# 2**15 (= 32,768) epochs, ~146 days
EARLY_DERIVED_SECRET_PENALTY_MAX_FUTURE_EPOCHS: 32768
# 2**14 (= 16,384) epochs ~73 days
EPOCHS_PER_CUSTODY_PERIOD: 16384
# 2**11 (= 2,048) epochs, ~9 days
CUSTODY_PERIOD_TO_RANDAO_PADDING: 2048
# 2**15 (= 32,768) epochs, ~146 days
MAX_CHUNK_CHALLENGE_DELAY: 32768
# Max operations
# ---------------------------------------------------------------
# 2**8 (= 256)
MAX_CUSTODY_KEY_REVEALS: 256
# 2**0 (= 1)
MAX_EARLY_DERIVED_SECRET_REVEALS: 1
# 2**2 (= 2)
MAX_CUSTODY_CHUNK_CHALLENGES: 4
# 2** 4 (= 16)
MAX_CUSTODY_CHUNK_CHALLENGE_RESP: 16
# 2**0 (= 1)
MAX_CUSTODY_SLASHINGS: 1
# Reward and penalty quotients
# ---------------------------------------------------------------
EARLY_DERIVED_SECRET_REVEAL_SLOT_REWARD_MULTIPLE: 2
# 2**8 (= 256)
MINOR_REWARD_QUOTIENT: 256
# Mainnet preset - Phase0
# Misc
# ---------------------------------------------------------------
# 2**6 (= 64)
MAX_COMMITTEES_PER_SLOT: 64
# 2**7 (= 128)
TARGET_COMMITTEE_SIZE: 128
# 2**11 (= 2,048)
MAX_VALIDATORS_PER_COMMITTEE: 2048
# See issue 563
SHUFFLE_ROUND_COUNT: 90
# 4
HYSTERESIS_QUOTIENT: 4
# 1 (minus 0.25)
HYSTERESIS_DOWNWARD_MULTIPLIER: 1
# 5 (plus 1.25)
HYSTERESIS_UPWARD_MULTIPLIER: 5
# Fork Choice
# ---------------------------------------------------------------
# 2**3 (= 8)
SAFE_SLOTS_TO_UPDATE_JUSTIFIED: 8
# 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**0 * 10**9 (= 1,000,000,000) Gwei
EFFECTIVE_BALANCE_INCREMENT: 1000000000
# Time parameters
# ---------------------------------------------------------------
# 2**0 (= 1) slots 12 seconds
MIN_ATTESTATION_INCLUSION_DELAY: 1
# 2**5 (= 32) slots 6.4 minutes
SLOTS_PER_EPOCH: 32
# 2**0 (= 1) epochs 6.4 minutes
MIN_SEED_LOOKAHEAD: 1
# 2**2 (= 4) epochs 25.6 minutes
MAX_SEED_LOOKAHEAD: 4
# 2**6 (= 64) epochs ~6.8 hours
EPOCHS_PER_ETH1_VOTING_PERIOD: 64
# 2**13 (= 8,192) slots ~27 hours
SLOTS_PER_HISTORICAL_ROOT: 8192
# 2**2 (= 4) epochs 25.6 minutes
MIN_EPOCHS_TO_INACTIVITY_PENALTY: 4
# State list lengths
# ---------------------------------------------------------------
# 2**16 (= 65,536) epochs ~0.8 years
EPOCHS_PER_HISTORICAL_VECTOR: 65536
# 2**13 (= 8,192) epochs ~36 days
EPOCHS_PER_SLASHINGS_VECTOR: 8192
# 2**24 (= 16,777,216) historical roots, ~26,131 years
HISTORICAL_ROOTS_LIMIT: 16777216
# 2**40 (= 1,099,511,627,776) validator spots
VALIDATOR_REGISTRY_LIMIT: 1099511627776
# Reward and penalty quotients
# ---------------------------------------------------------------
# 2**6 (= 64)
BASE_REWARD_FACTOR: 64
# 2**9 (= 512)
WHISTLEBLOWER_REWARD_QUOTIENT: 512
# 2**3 (= 8)
PROPOSER_REWARD_QUOTIENT: 8
# 2**26 (= 67,108,864)
INACTIVITY_PENALTY_QUOTIENT: 67108864
# 2**7 (= 128) (lower safety margin at Phase 0 genesis)
MIN_SLASHING_PENALTY_QUOTIENT: 128
# 1 (lower safety margin at Phase 0 genesis)
PROPORTIONAL_SLASHING_MULTIPLIER: 1
# Max operations per block
# ---------------------------------------------------------------
# 2**4 (= 16)
MAX_PROPOSER_SLASHINGS: 16
# 2**1 (= 2)
MAX_ATTESTER_SLASHINGS: 2
# 2**7 (= 128)
MAX_ATTESTATIONS: 128
# 2**4 (= 16)
MAX_DEPOSITS: 16
# 2**4 (= 16)
MAX_VOLUNTARY_EXITS: 16
# Mainnet preset - Sharding
# Misc
# ---------------------------------------------------------------
# 2**10 (= 1,024)
MAX_SHARDS: 1024
# 2**6 (= 64)
INITIAL_ACTIVE_SHARDS: 64
# 2**3 (= 8)
SAMPLE_PRICE_ADJUSTMENT_COEFFICIENT: 8
# 2**4 (= 16)
MAX_SHARD_PROPOSER_SLASHINGS: 16
#
MAX_SHARD_HEADERS_PER_SHARD: 4
# 2**8 (= 256)
SHARD_STATE_MEMORY_SLOTS: 256
# 2**40 (= 1,099,511,627,776)
BLOB_BUILDER_REGISTRY_LIMIT: 1099511627776
# Shard blob samples
# ---------------------------------------------------------------
# 2**11 (= 2,048)
MAX_SAMPLES_PER_BLOCK: 2048
# 2**10 (= 1,1024)
TARGET_SAMPLES_PER_BLOCK: 1024
# Gwei values
# ---------------------------------------------------------------
# 2**33 (= 8,589,934,592) Gwei
MAX_SAMPLE_PRICE: 8589934592
# 2**3 (= 8) Gwei
MIN_SAMPLE_PRICE: 8
# Max operations per block
# ---------------------------------------------------------------
# 2**4 (= 16)
MAX_BLS_TO_EXECUTION_CHANGES: 16
# Execution
# ---------------------------------------------------------------
# [customized] 2**2 (= 4)
MAX_WITHDRAWALS_PER_PAYLOAD: 16
# Withdrawals processing
# ---------------------------------------------------------------
# [customized] 2**4 (= 16) validators
MAX_VALIDATORS_PER_WITHDRAWALS_SWEEP: 16384