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call notify_forkchoice_updated with finalized_block_hash == 0x00..00 if not yet finalized

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Danny Ryan 2021-10-18 12:07:33 -06:00
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specs/merge/fork-choice.md
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@ -49,6 +49,7 @@ def notify_forkchoice_updated(self: ExecutionEngine, head_block_hash: Hash32, fi
```
*Note*: The call of the `notify_forkchoice_updated` function maps on the `POS_FORKCHOICE_UPDATED` event defined in the [EIP-3675](https://eips.ethereum.org/EIPS/eip-3675#definitions).
As per EIP-3675, before a post-transition block is finalized, `notify_forkchoice_updated` must be called with `finalized_block_hash = Hash32()`.
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