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Update 0_beacon-chain.md

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Justin 2019-03-12 10:02:52 +00:00 committed by GitHub
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specs/core/0_beacon-chain.md
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@ -203,10 +203,10 @@ Code snippets appearing in `this style` are to be interpreted as Python code.
| Name | Value | Unit |
| - | - | :-: |
| `MIN_DEPOSIT_AMOUNT` | `10**9` (= 1,000,000,000) | Gwei |
| `MIN_DEPOSIT_AMOUNT` | `2**0 * 10**9` (= 1,000,000,000) | Gwei |
| `MAX_DEPOSIT_AMOUNT` | `2**5 * 10**9` (= 32,000,000,000) | Gwei |
| `EJECTION_BALANCE` | `2**4 * 10**9` (= 16,000,000,000) | Gwei |
| `HIGH_BALANCE_INCREMENT` | `10**9` (= 1,000,000,000) | Gwei |
| `HIGH_BALANCE_INCREMENT` | `2**0 * 10**9` (= 1,000,000,000) | Gwei |
### Initial values
@ -440,7 +440,7 @@ The types are defined topologically to aid in facilitating an executable version
# Was the validator slashed
'slashed': 'bool',
# Rounded balance
'high_balance': 'uint32'
'high_balance': 'uint64'
}
```
@ -756,25 +756,17 @@ def get_active_validator_indices(validators: List[Validator], epoch: Epoch) -> L
```python
def get_balance(state: BeaconState, index: int) -> int:
return (
state.validator_registry[index].high_balance * HIGH_BALANCE_INCREMENT +
state.low_balances[index]
)
return state.validator_registry[index].high_balance + state.low_balances[index]
```
#### `set_balance`
````python
def set_balance(state: BeaconState, index: int, new_balance: int) -> None:
def set_balance(state: BeaconState, index: int, balance: int) -> None:
validator = state.validator_registry[index]
HALF_INCREMENT = HIGH_BALANCE_INCREMENT // 2
if (
validator.high_balance * HIGH_BALANCE_INCREMENT > new_balance or
validator.high_balance * HIGH_BALANCE_INCREMENT + HALF_INCREMENT * 3 < new_balance
):
validator.high_balance = new_balance // HIGH_BALANCE_INCREMENT
state.low_balances[index] = (
new_balance - validator.high_balance * HIGH_BALANCE_INCREMENT
)
if validator.high_balance > balance or validator.high_balance + 3 * HALF_INCREMENT < balance:
validator.high_balance = balance - balance % HIGH_BALANCE_INCREMENT
state.low_balances[index] = balance - validator.high_balance
````
#### `increase_balance`