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Update 0_beacon-chain.md

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Justin 2019-03-08 09:08:30 +01:00 committed by GitHub
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specs/core/0_beacon-chain.md
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@ -2218,10 +2218,10 @@ At every `slot > GENESIS_SLOT` run the following function:
```python
def advance_slot(state: BeaconState) -> None:
state.slot += 1
if state.latest_block_header.state_root == ZERO_HASH:
state.latest_block_header.state_root = get_state_root(state, state.slot - 1)
state.latest_block_roots[(state.slot - 1) % SLOTS_PER_HISTORICAL_ROOT] = hash_tree_root(state.latest_block_header)
state.latest_block_header.state_root = state.latest_block_roots[state.slot % SLOTS_PER_HISTORICAL_ROOT]
state.latest_block_roots[state.slot % SLOTS_PER_HISTORICAL_ROOT] = hash_tree_root(state.latest_block_header)
state.slot += 1
```
### Per-block processing