151 lines
5.1 KiB
Nim
151 lines
5.1 KiB
Nim
# beacon_chain
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# Copyright (c) 2018-2020 Status Research & Development GmbH
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# Licensed and distributed under either of
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# * MIT license (license terms in the root directory or at https://opensource.org/licenses/MIT).
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# * Apache v2 license (license terms in the root directory or at https://www.apache.org/licenses/LICENSE-2.0).
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# at your option. This file may not be copied, modified, or distributed except according to those terms.
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# This file contains constants that are part of the spec and thus subject to
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# serialization and spec updates.
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import
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math
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{.experimental: "codeReordering".} # SLOTS_PER_EPOCH is use before being defined in spec
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const
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# Misc
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# ---------------------------------------------------------------
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# https://github.com/ethereum/eth2.0-specs/blob/v1.0.0-rc.0/configs/minimal/phase0.yaml#L5
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CONFIG_NAME* = "minimal"
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# Changed
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MAX_COMMITTEES_PER_SLOT*: uint64 = 4
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TARGET_COMMITTEE_SIZE*: uint64 = 4
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# Unchanged
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MAX_VALIDATORS_PER_COMMITTEE*: uint64 = 2048
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MIN_PER_EPOCH_CHURN_LIMIT*: uint64 = 4
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CHURN_LIMIT_QUOTIENT*: uint64 = 2'u64 ^ 16
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# Changed
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SHUFFLE_ROUND_COUNT*: uint64 = 10
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# MIN_GENESIS_ACTIVE_VALIDATOR_COUNT and MIN_GENESIS_TIME are runtime presets
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# Unchanged
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HYSTERESIS_QUOTIENT*: uint64 = 4
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HYSTERESIS_DOWNWARD_MULTIPLIER*: uint64 = 1
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HYSTERESIS_UPWARD_MULTIPLIER*: uint64 = 5
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# Gwei values
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# ---------------------------------------------------------------
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# https://github.com/ethereum/eth2.0-specs/blob/v1.0.0-rc.0/configs/minimal/phase0.yaml#L61
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# Unchanged
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MIN_DEPOSIT_AMOUNT*: uint64 = 2'u64^0 * 10'u64^9
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MAX_EFFECTIVE_BALANCE*: uint64 = 2'u64^5 * 10'u64^9
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EJECTION_BALANCE*: uint64 = 2'u64^4 * 10'u64^9
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EFFECTIVE_BALANCE_INCREMENT*: uint64 = 2'u64^0 * 10'u64^9
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# Initial values
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# ---------------------------------------------------------------
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# https://github.com/ethereum/eth2.0-specs/blob/v1.0.0-rc.0/configs/minimal/phase0.yaml#L73
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# GENESIS_FORK_VERSION is a runtime preset
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BLS_WITHDRAWAL_PREFIX*: byte = 0
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# Time parameters
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# ---------------------------------------------------------------
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# https://github.com/ethereum/eth2.0-specs/blob/v1.0.0-rc.0/configs/minimal/phase0.yaml#L80
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# Changed: Faster to spin up testnets, but does not give validator
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# reasonable warning time for genesis
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# GENESIS_DELAY is a runtime preset
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# Unchanged
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SECONDS_PER_SLOT*{.intdefine.}: uint64 = 6
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# Unchanged
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MIN_ATTESTATION_INCLUSION_DELAY*: uint64 = 1
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# Changed
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SLOTS_PER_EPOCH* {.intdefine.}: uint64 = 8
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# Unchanged
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MIN_SEED_LOOKAHEAD*: uint64 = 1
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MAX_SEED_LOOKAHEAD*: uint64 = 4
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# Changed
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EPOCHS_PER_ETH1_VOTING_PERIOD*: uint64 = 4
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SLOTS_PER_HISTORICAL_ROOT*: uint64 = 64
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# Unchanged
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MIN_VALIDATOR_WITHDRAWABILITY_DELAY*: uint64 = 2'u64^8
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SHARD_COMMITTEE_PERIOD*: uint64 = 64 # epochs
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# Changed
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MIN_EPOCHS_TO_INACTIVITY_PENALTY*: uint64 = 2'u64^2
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# State vector lengths
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# ---------------------------------------------------------------
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# https://github.com/ethereum/eth2.0-specs/blob/v1.0.0-rc.0/configs/minimal/phase0.yaml#L106
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# Changed
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EPOCHS_PER_HISTORICAL_VECTOR*: uint64 = 64
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EPOCHS_PER_SLASHINGS_VECTOR*: uint64 = 64
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# Unchanged
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HISTORICAL_ROOTS_LIMIT*: uint64 = 16777216
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VALIDATOR_REGISTRY_LIMIT*: uint64 = 1099511627776'u64
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# Reward and penalty quotients
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# ---------------------------------------------------------------
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# https://github.com/ethereum/eth2.0-specs/blob/v1.0.0-rc.0/configs/minimal/phase0.yaml#L118
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BASE_REWARD_FACTOR*: uint64 = 2'u64^6
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WHISTLEBLOWER_REWARD_QUOTIENT*: uint64 = 2'u64^9
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PROPOSER_REWARD_QUOTIENT*: uint64 = 2'u64^3
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INACTIVITY_PENALTY_QUOTIENT*: uint64 = 2'u64^25
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MIN_SLASHING_PENALTY_QUOTIENT*: uint64 = 64 # 2^6
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PROPORTIONAL_SLASHING_MULTIPLIER*: uint64 = 2
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# Max operations per block
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# ---------------------------------------------------------------
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# https://github.com/ethereum/eth2.0-specs/blob/v1.0.0-rc.0/configs/minimal/phase0.yaml#L134
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MAX_PROPOSER_SLASHINGS*: uint64 = 2'u64 ^ 4
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MAX_ATTESTER_SLASHINGS*: uint64 = 2'u64 ^ 1
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MAX_ATTESTATIONS*: uint64 = 2'u64 ^ 7
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MAX_DEPOSITS*: uint64 = 2'u64 ^ 4
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MAX_VOLUNTARY_EXITS*: uint64 = 2'u64 ^ 4
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# Deposit contract
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# ---------------------------------------------------------------
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# https://github.com/ethereum/eth2.0-specs/blob/v1.0.0-rc.0/configs/minimal/phase0.yaml#L52
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# Ethereum Goerli testnet
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DEPOSIT_CHAIN_ID* = 5
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DEPOSIT_NETWORK_ID* = 5
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# Fork choice
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# ---------------------------------------------------------------
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# https://github.com/ethereum/eth2.0-specs/blob/v1.0.0-rc.0/configs/minimal/phase0.yaml#L32
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# Changed
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SAFE_SLOTS_TO_UPDATE_JUSTIFIED*: uint64 = 2
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# Validators
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# ---------------------------------------------------------------
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# https://github.com/ethereum/eth2.0-specs/blob/v1.0.0-rc.0/configs/minimal/phase0.yaml#L38
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# ETH1_FOLLOW_DISTANCE is a runtime preset
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# Unchanged
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TARGET_AGGREGATORS_PER_COMMITTEE*: uint64 = 16 # validators
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RANDOM_SUBNETS_PER_VALIDATOR*: uint64 = 1 # subnet
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EPOCHS_PER_RANDOM_SUBNET_SUBSCRIPTION*: uint64 = 256 # epochs ~ 27 hours
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SECONDS_PER_ETH1_BLOCK* {.intdefine.}: uint64 = 14 # (estimate from Eth1 mainnet)
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