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clarified language around start_up (#303)

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Gregory Markou 2018-12-13 08:08:51 -05:00 committed by Justin
parent 0f8166c693
commit b554204688
1 changed files with 6 additions and 6 deletions
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specs/core/0_beacon-chain.md
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@ -592,7 +592,7 @@ Every deposit, of size between `MIN_DEPOSIT` and `MAX_DEPOSIT`, emits an `Eth1De
### `ChainStart` log ### `ChainStart` log
When sufficiently many full deposits have been made the deposit contract emits the `ChainStart` log. The beacon chain may then be initialized by calling the `on_startup` function (defined below) where: When sufficiently many full deposits have been made the deposit contract emits the `ChainStart` log. The beacon chain state may then be initialized by calling the `get_initial_beacon_state` function (defined below) where:
* `genesis_time` equals `time` in the `ChainStart` log * `genesis_time` equals `time` in the `ChainStart` log
* `processed_pow_receipt_root` equals `receipt_root` in the `ChainStart` log * `processed_pow_receipt_root` equals `receipt_root` in the `ChainStart` log
@ -1076,10 +1076,10 @@ A valid block with slot `INITIAL_SLOT_NUMBER` (a "genesis block") has the follow
} }
``` ```
`STARTUP_STATE_ROOT` is the root of the initial state, computed by running the following code: `STARTUP_STATE_ROOT` (in the above "genesis block") is generated from the `get_initial_beacon_state` function below. When enough full deposits have been made to the deposit contract and the `ChainStart` log has been emitted, `get_initial_beacon_state` will execute to compute the `ssz_tree_hash` of `BeaconState`.
```python ```python
def on_startup(initial_validator_deposits: List[Deposit], def get_initial_beacon_state(initial_validator_deposits: List[Deposit],
genesis_time: int, genesis_time: int,
processed_pow_receipt_root: Hash32) -> BeaconState: processed_pow_receipt_root: Hash32) -> BeaconState:
state = BeaconState( state = BeaconState(