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

# Minimal preset


# Misc
# ---------------------------------------------------------------

# [customized] Just 8 shards for testing purposes
SHARD_COUNT: 8

# [customized] unsecure, but fast
TARGET_COMMITTEE_SIZE: 4
# 2**12 (= 4,096)
MAX_ATTESTATION_PARTICIPANTS: 4096
# 2**2 (= 4)
MIN_PER_EPOCH_CHURN_LIMIT: 4
# 2**16 (= 65,536)
CHURN_LIMIT_QUOTIENT: 65536
# [customized] Faster, but unsecure.
SHUFFLE_ROUND_COUNT: 10


# 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_DEPOSIT_AMOUNT: 32000000000
# 2**4 * 10**9 (= 16,000,000,000) Gwei
EJECTION_BALANCE: 16000000000
# 2**0 * 10**9 (= 1,000,000,000) Gwei
HIGH_BALANCE_INCREMENT: 1000000000


# Initial values
# ---------------------------------------------------------------
GENESIS_FORK_VERSION: 0x00000000
# 2**32, GENESIS_EPOCH is derived from this constant
GENESIS_SLOT: 4294967296
GENESIS_START_SHARD: 0
# 2**64 - 1
FAR_FUTURE_EPOCH: 18446744073709551615
BLS_WITHDRAWAL_PREFIX_BYTE: 0x00


# Time parameters
# ---------------------------------------------------------------
# 6 seconds 6 seconds
SECONDS_PER_SLOT: 6
# [customized] 2 slots
MIN_ATTESTATION_INCLUSION_DELAY: 2
# [customized] fast epochs
SLOTS_PER_EPOCH: 8
# 2**0 (= 1) epochs 6.4 minutes
MIN_SEED_LOOKAHEAD: 1
# 2**2 (= 4) epochs 25.6 minutes
ACTIVATION_EXIT_DELAY: 4
# [customized] higher frequency new deposits from eth1 for testing
SLOTS_PER_ETH1_VOTING_PERIOD: 16
# [customized] smaller state
SLOTS_PER_HISTORICAL_ROOT: 64
# 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


# State list lengths
# ---------------------------------------------------------------
# [customized] smaller state
LATEST_RANDAO_MIXES_LENGTH: 64
# [customized] smaller state
LATEST_ACTIVE_INDEX_ROOTS_LENGTH: 64
# [customized] smaller state
LATEST_SLASHED_EXIT_LENGTH: 64


# 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**24 (= 16,777,216)
INACTIVITY_PENALTY_QUOTIENT: 16777216


# Max operations per block
# ---------------------------------------------------------------
# 2**5 (= 32)
MIN_PENALTY_QUOTIENT: 32
# 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
# 2**4 (= 16)
MAX_TRANSFERS: 16


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