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Mandatory deposits 

Resolves #675 point 5.
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vbuterin 2019-03-11 23:30:08 -05:00 committed by GitHub
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7
specs/core/0_beacon-chain.md
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@ -315,6 +315,8 @@ The types are defined topologically to aid in facilitating an executable version
{ {
# Root of the deposit tree # Root of the deposit tree
'deposit_root': 'bytes32', 'deposit_root': 'bytes32',
# Total number of deposits
'deposit_count': 'uint64',
# Block hash # Block hash
'block_hash': 'bytes32', 'block_hash': 'bytes32',
} }
@ -1456,6 +1458,7 @@ When sufficiently many full deposits have been made the deposit contract emits t
* `genesis_time` equals `time` in the `Eth2Genesis` log * `genesis_time` equals `time` in the `Eth2Genesis` log
* `latest_eth1_data.deposit_root` equals `deposit_root` in the `Eth2Genesis` log * `latest_eth1_data.deposit_root` equals `deposit_root` in the `Eth2Genesis` log
* `latest_eth1_data.deposit_count` equals `deposit_count` in the `Eth2Genesis` log
* `latest_eth1_data.block_hash` equals the hash of the block that included the log * `latest_eth1_data.block_hash` equals the hash of the block that included the log
* `genesis_validator_deposits` is a list of `Deposit` objects built according to the `Deposit` logs up to the deposit that triggered the `Eth2Genesis` log, processed in the order in which they were emitted (oldest to newest) * `genesis_validator_deposits` is a list of `Deposit` objects built according to the `Deposit` logs up to the deposit that triggered the `Eth2Genesis` log, processed in the order in which they were emitted (oldest to newest)
@ -1479,6 +1482,7 @@ When enough full deposits have been made to the deposit contract, an `Eth2Genesi
* Let `genesis_time` be the timestamp specified in the `Eth2Genesis` log. * Let `genesis_time` be the timestamp specified in the `Eth2Genesis` log.
* Let `genesis_eth1_data` be the `Eth1Data` object where: * Let `genesis_eth1_data` be the `Eth1Data` object where:
* `genesis_eth1_data.deposit_root` is the `deposit_root` contained in the `Eth2Genesis` log. * `genesis_eth1_data.deposit_root` is the `deposit_root` contained in the `Eth2Genesis` log.
* `genesis_eth1_data.deposit_count` is the `deposit_count` contained in the `Eth2Genesis` log.
* `genesis_eth1_data.block_hash` is the hash of the Ethereum 1.0 block that emitted the `Eth2Genesis` log. * `genesis_eth1_data.block_hash` is the hash of the Ethereum 1.0 block that emitted the `Eth2Genesis` log.
* Let `genesis_state = get_genesis_beacon_state(genesis_validator_deposits, genesis_time, genesis_eth1_data)`. * Let `genesis_state = get_genesis_beacon_state(genesis_validator_deposits, genesis_time, genesis_eth1_data)`.
* Let `genesis_block = get_empty_block()`. * Let `genesis_block = get_empty_block()`.
@ -1497,6 +1501,7 @@ def get_empty_block() -> BeaconBlock:
randao_reveal=EMPTY_SIGNATURE, randao_reveal=EMPTY_SIGNATURE,
eth1_data=Eth1Data( eth1_data=Eth1Data(
deposit_root=ZERO_HASH, deposit_root=ZERO_HASH,
deposit_count=0,
block_hash=ZERO_HASH, block_hash=ZERO_HASH,
), ),
proposer_slashings=[], proposer_slashings=[],
@ -2443,7 +2448,7 @@ def process_attestation(state: BeaconState, attestation: Attestation) -> None:
##### Deposits ##### Deposits
Verify that `len(block.body.deposits) <= MAX_DEPOSITS`. Verify that `len(block.body.deposits) <= MAX_DEPOSITS`. If `state.latest_eth1_data.deposit_count > state.deposit_index`, verify that `len(block.body.deposits) >= 1`.
For each `deposit` in `block.body.deposits`, run `process_deposit(state, deposit)`. For each `deposit` in `block.body.deposits`, run `process_deposit(state, deposit)`.