Phase0 constant/config/preset separation
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protolambda
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@ -9,16 +9,19 @@
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- [Notation](#notation)
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- [Custom types](#custom-types)
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- [Constants](#constants)
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- [Configuration](#configuration)
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- [Misc](#misc)
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- [Gwei values](#gwei-values)
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- [Initial values](#initial-values)
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- [Withdrawal prefixes](#withdrawal-prefixes)
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- [Domain types](#domain-types)
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- [Preset](#preset)
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- [Misc](#misc-1)
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- [Gwei values](#gwei-values)
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- [Time parameters](#time-parameters)
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- [State list lengths](#state-list-lengths)
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- [Rewards and penalties](#rewards-and-penalties)
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- [Max operations per block](#max-operations-per-block)
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- [Domain types](#domain-types)
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- [Configuration](#configuration)
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- [General](#general)
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- [Time parameters](#time-parameters-1)
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- [Containers](#containers)
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- [Misc dependencies](#misc-dependencies)
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- [`Fork`](#fork)
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@ -67,7 +70,7 @@
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- [`is_slashable_attestation_data`](#is_slashable_attestation_data)
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- [`is_valid_indexed_attestation`](#is_valid_indexed_attestation)
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- [`is_valid_merkle_branch`](#is_valid_merkle_branch)
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- [Misc](#misc-1)
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- [Misc](#misc-2)
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- [`compute_shuffled_index`](#compute_shuffled_index)
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- [`compute_proposer_index`](#compute_proposer_index)
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- [`compute_committee`](#compute_committee)
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@ -170,6 +173,8 @@ We define the following Python custom types for type hinting and readability:
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The following values are (non-configurable) constants used throughout the specification.
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### Misc
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| Name | Value |
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| - | - |
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| `GENESIS_SLOT` | `Slot(0)` |
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@ -180,23 +185,39 @@ The following values are (non-configurable) constants used throughout the specif
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| `JUSTIFICATION_BITS_LENGTH` | `uint64(4)` |
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| `ENDIANNESS` | `'little'` |
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## Configuration
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### Withdrawal prefixes
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*Note*: The default mainnet configuration values are included here for illustrative purposes. The different configurations for mainnet, testnets, and YAML-based testing can be found in the [`configs/constant_presets`](../../configs) directory.
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| Name | Value |
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| - | - |
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| `BLS_WITHDRAWAL_PREFIX` | `Bytes1('0x00')` |
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| `ETH1_ADDRESS_WITHDRAWAL_PREFIX` | `Bytes1('0x01')` |
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### Domain types
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| Name | Value |
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| - | - |
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| `DOMAIN_BEACON_PROPOSER` | `DomainType('0x00000000')` |
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| `DOMAIN_BEACON_ATTESTER` | `DomainType('0x01000000')` |
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| `DOMAIN_RANDAO` | `DomainType('0x02000000')` |
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| `DOMAIN_DEPOSIT` | `DomainType('0x03000000')` |
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| `DOMAIN_VOLUNTARY_EXIT` | `DomainType('0x04000000')` |
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| `DOMAIN_SELECTION_PROOF` | `DomainType('0x05000000')` |
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| `DOMAIN_AGGREGATE_AND_PROOF` | `DomainType('0x06000000')` |
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## Preset
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*Note*: The below configuration is bundled as a preset: a bundle of configuration variables which are expected to differ
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between different modes of operation, e.g. testing, but not generally between different networks.
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Additional preset configurations can be found in the [`configs`](../../configs) directory.
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### Misc
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| Name | Value |
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| - | - |
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| `ETH1_FOLLOW_DISTANCE` | `uint64(2**11)` (= 2,048) |
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| `MAX_COMMITTEES_PER_SLOT` | `uint64(2**6)` (= 64) |
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| `TARGET_COMMITTEE_SIZE` | `uint64(2**7)` (= 128) |
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| `MAX_VALIDATORS_PER_COMMITTEE` | `uint64(2**11)` (= 2,048) |
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| `MIN_PER_EPOCH_CHURN_LIMIT` | `uint64(2**2)` (= 4) |
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| `CHURN_LIMIT_QUOTIENT` | `uint64(2**16)` (= 65,536) |
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| `SHUFFLE_ROUND_COUNT` | `uint64(90)` |
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| `MIN_GENESIS_ACTIVE_VALIDATOR_COUNT` | `uint64(2**14)` (= 16,384) |
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| `MIN_GENESIS_TIME` | `uint64(1606824000)` (Dec 1, 2020, 12pm UTC) |
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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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@ -212,26 +233,10 @@ The following values are (non-configurable) constants used throughout the specif
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| `EJECTION_BALANCE` | `Gwei(2**4 * 10**9)` (= 16,000,000,000) |
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| `EFFECTIVE_BALANCE_INCREMENT` | `Gwei(2**0 * 10**9)` (= 1,000,000,000) |
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### Initial values
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| Name | Value |
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| - | - |
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| `GENESIS_FORK_VERSION` | `Version('0x00000000')` |
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### Withdrawal prefixes
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| Name | Value |
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| - | - |
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| `BLS_WITHDRAWAL_PREFIX` | `Bytes1('0x00')` |
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| `ETH1_ADDRESS_WITHDRAWAL_PREFIX` | `Bytes1('0x01')` |
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### Time parameters
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| Name | Value | Unit | Duration |
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| - | - | :-: | :-: |
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| `GENESIS_DELAY` | `uint64(604800)` | seconds | 7 days |
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| `SECONDS_PER_SLOT` | `uint64(12)` | seconds | 12 seconds |
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| `SECONDS_PER_ETH1_BLOCK` | `uint64(14)` | seconds | 14 seconds |
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| `MIN_ATTESTATION_INCLUSION_DELAY` | `uint64(2**0)` (= 1) | slots | 12 seconds |
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| `SLOTS_PER_EPOCH` | `uint64(2**5)` (= 32) | slots | 6.4 minutes |
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| `MIN_SEED_LOOKAHEAD` | `uint64(2**0)` (= 1) | epochs | 6.4 minutes |
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@ -239,8 +244,6 @@ The following values are (non-configurable) constants used throughout the specif
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| `MIN_EPOCHS_TO_INACTIVITY_PENALTY` | `uint64(2**2)` (= 4) | epochs | 25.6 minutes |
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| `EPOCHS_PER_ETH1_VOTING_PERIOD` | `uint64(2**6)` (= 64) | epochs | ~6.8 hours |
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| `SLOTS_PER_HISTORICAL_ROOT` | `uint64(2**13)` (= 8,192) | slots | ~27 hours |
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| `MIN_VALIDATOR_WITHDRAWABILITY_DELAY` | `uint64(2**8)` (= 256) | epochs | ~27 hours |
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| `SHARD_COMMITTEE_PERIOD` | `uint64(2**8)` (= 256) | epochs | ~27 hours |
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### State list lengths
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@ -276,17 +279,32 @@ The following values are (non-configurable) constants used throughout the specif
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| `MAX_DEPOSITS` | `2**4` (= 16) |
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| `MAX_VOLUNTARY_EXITS` | `2**4` (= 16) |
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### Domain types
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## Configuration
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*Note*: The default mainnet configuration values are included here for illustrative purposes.
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Defaults for this more dynamic type of configuration are available with the presets in the [`configs`](../../configs) directory.
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Testnets and other types of chain instances may use a different configuration.
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### General
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| Name | Value |
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| - | - |
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| `DOMAIN_BEACON_PROPOSER` | `DomainType('0x00000000')` |
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| `DOMAIN_BEACON_ATTESTER` | `DomainType('0x01000000')` |
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| `DOMAIN_RANDAO` | `DomainType('0x02000000')` |
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| `DOMAIN_DEPOSIT` | `DomainType('0x03000000')` |
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| `DOMAIN_VOLUNTARY_EXIT` | `DomainType('0x04000000')` |
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| `DOMAIN_SELECTION_PROOF` | `DomainType('0x05000000')` |
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| `DOMAIN_AGGREGATE_AND_PROOF` | `DomainType('0x06000000')` |
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| `MIN_GENESIS_ACTIVE_VALIDATOR_COUNT` | `uint64(2**14)` (= 16,384) |
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| `MIN_GENESIS_TIME` | `uint64(1606824000)` (Dec 1, 2020, 12pm UTC) |
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| `GENESIS_FORK_VERSION` | `Version('0x00000000')` |
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| `ETH1_FOLLOW_DISTANCE` | `uint64(2**11)` (= 2,048) |
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| `MIN_PER_EPOCH_CHURN_LIMIT` | `uint64(2**2)` (= 4) |
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| `CHURN_LIMIT_QUOTIENT` | `uint64(2**16)` (= 65,536) |
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### Time parameters
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| Name | Value | Unit | Duration |
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| - | - | :-: | :-: |
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| `GENESIS_DELAY` | `uint64(604800)` | seconds | 7 days |
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| `SECONDS_PER_SLOT` | `uint64(12)` | seconds | 12 seconds |
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| `SECONDS_PER_ETH1_BLOCK` | `uint64(14)` | seconds | 14 seconds |
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| `MIN_VALIDATOR_WITHDRAWABILITY_DELAY` | `uint64(2**8)` (= 256) | epochs | ~27 hours |
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| `SHARD_COMMITTEE_PERIOD` | `uint64(2**8)` (= 256) | epochs | ~27 hours |
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## Containers
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