# Minimal preset # Misc # --------------------------------------------------------------- # [customized] Just 4 committees for slot for testing purposes MAX_COMMITTEES_PER_SLOT: 4 # [customized] unsecure, but fast TARGET_COMMITTEE_SIZE: 4 # 2**11 (= 2,048) MAX_VALIDATORS_PER_COMMITTEE: 2048 # 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 # [customized] MIN_GENESIS_ACTIVE_VALIDATOR_COUNT: 64 # Jan 3, 2020 MIN_GENESIS_TIME: 1578009600 # 4 HYSTERESIS_QUOTIENT: 4 # 1 (minus 0.25) HYSTERESIS_DOWNWARD_MULTIPLIER: 1 # 5 (plus 1.25) HYSTERESIS_UPWARD_MULTIPLIER: 5 # Fork Choice # --------------------------------------------------------------- # 2**1 (= 1) SAFE_SLOTS_TO_UPDATE_JUSTIFIED: 2 # Validator # --------------------------------------------------------------- # [customized] process deposits more quickly, but insecure ETH1_FOLLOW_DISTANCE: 16 # 2**4 (= 16) TARGET_AGGREGATORS_PER_COMMITTEE: 16 # 2**0 (= 1) RANDOM_SUBNETS_PER_VALIDATOR: 1 # 2**8 (= 256) EPOCHS_PER_RANDOM_SUBNET_SUBSCRIPTION: 256 # 14 (estimate from Eth1 mainnet) SECONDS_PER_ETH1_BLOCK: 14 # Deposit contract # --------------------------------------------------------------- # **TBD** DEPOSIT_CONTRACT_ADDRESS: 0x1234567890123456789012345678901234567890 # 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 # --------------------------------------------------------------- # Highest byte set to 0x01 to avoid collisions with mainnet versioning GENESIS_FORK_VERSION: 0x00000001 BLS_WITHDRAWAL_PREFIX: 0x00 # Time parameters # --------------------------------------------------------------- # [customized] Faster to spin up testnets, but does not give validator reasonable warning time for genesis MIN_GENESIS_DELAY: 300 # [customized] Faster for testing purposes SECONDS_PER_SLOT: 6 # 2**0 (= 1) slots 6 seconds MIN_ATTESTATION_INCLUSION_DELAY: 1 # [customized] fast epochs SLOTS_PER_EPOCH: 8 # 2**0 (= 1) epochs MIN_SEED_LOOKAHEAD: 1 # 2**2 (= 4) epochs MAX_SEED_LOOKAHEAD: 4 # [customized] higher frequency new deposits from eth1 for testing EPOCHS_PER_ETH1_VOTING_PERIOD: 4 # [customized] smaller state SLOTS_PER_HISTORICAL_ROOT: 64 # 2**8 (= 256) epochs MIN_VALIDATOR_WITHDRAWABILITY_DELAY: 256 # [customized] higher frequency of committee turnover and faster time to acceptable voluntary exit SHARD_COMMITTEE_PERIOD: 64 # [customized] fast catchup crosslinks MAX_EPOCHS_PER_CROSSLINK: 4 # 2**2 (= 4) epochs MIN_EPOCHS_TO_INACTIVITY_PENALTY: 4 # State vector lengths # --------------------------------------------------------------- # [customized] smaller state EPOCHS_PER_HISTORICAL_VECTOR: 64 # [customized] smaller state EPOCHS_PER_SLASHINGS_VECTOR: 64 # 2**24 (= 16,777,216) historical roots 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**24 (= 16,777,216) INACTIVITY_PENALTY_QUOTIENT: 16777216 # 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 # Signature domains # --------------------------------------------------------------- DOMAIN_BEACON_PROPOSER: 0x00000000 DOMAIN_BEACON_ATTESTER: 0x01000000 DOMAIN_RANDAO: 0x02000000 DOMAIN_DEPOSIT: 0x03000000 DOMAIN_VOLUNTARY_EXIT: 0x04000000 DOMAIN_SELECTION_PROOF: 0x05000000 DOMAIN_AGGREGATE_AND_PROOF: 0x06000000 # Phase 1 DOMAIN_SHARD_PROPOSAL: 0x80000000 DOMAIN_SHARD_COMMITTEE: 0x81000000 DOMAIN_LIGHT_CLIENT: 0x82000000 DOMAIN_CUSTODY_BIT_SLASHING: 0x83000000 # Constant NO_SIGNATURE: 0x000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 # Phase 1: Upgrade from Phase 0 # --------------------------------------------------------------- # [customized] for testnet distinction PHASE_1_FORK_VERSION: 0x01000001 # [customized] for testing PHASE_1_GENESIS_SLOT: 8 # [customized] reduced for testing INITIAL_ACTIVE_SHARDS: 4 # Phase 1: General # --------------------------------------------------------------- # [customized] reduced for testing MAX_SHARDS: 8 # 2**3 (= 8) | online epochs ONLINE_PERIOD: 8 # 2**7 (= 128) LIGHT_CLIENT_COMMITTEE_SIZE: 128 # 2**8 (= 256) | epochs LIGHT_CLIENT_COMMITTEE_PERIOD: 256 # 2**18 (= 262,144) SHARD_BLOCK_CHUNK_SIZE: 262144 # 2**2 (= 4) MAX_SHARD_BLOCK_CHUNKS: 4 # 3 * 2**16` (= 196,608) TARGET_SHARD_BLOCK_SIZE: 196608 # Note: MAX_SHARD_BLOCKS_PER_ATTESTATION is derived from the list length. SHARD_BLOCK_OFFSETS: [1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233] # len(SHARD_BLOCK_OFFSETS) MAX_SHARD_BLOCKS_PER_ATTESTATION: 12 # 2**14 (= 16,384) Gwei MAX_GASPRICE: 16384 # 2**3 (= 8) Gwei MIN_GASPRICE: 8 # 2**3 (= 8) GASPRICE_ADJUSTMENT_COEFFICIENT: 8 # Phase 1: Custody Game # --------------------------------------------------------------- # Time parameters # 2**1 (= 2) epochs RANDAO_PENALTY_EPOCHS: 2 # [customized] quicker for testing EARLY_DERIVED_SECRET_PENALTY_MAX_FUTURE_EPOCHS: 4096 # 2**11 (= 2,048) epochs EPOCHS_PER_CUSTODY_PERIOD: 2048 # 2**11 (= 2,048) epochs CUSTODY_PERIOD_TO_RANDAO_PADDING: 2048 # 2**7 (= 128) epochs MAX_REVEAL_LATENESS_DECREMENT: 128 # Max operations # 2**8 (= 256) MAX_CUSTODY_KEY_REVEALS: 256 MAX_EARLY_DERIVED_SECRET_REVEALS: 1 MAX_CUSTODY_SLASHINGS: 1 # Reward and penalty quotients EARLY_DERIVED_SECRET_REVEAL_SLOT_REWARD_MULTIPLE: 2 # 2**8 (= 256) MINOR_REWARD_QUOTIENT: 256