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Add note on default zero-values, and be explicit with state-root (#1208) 

* Add note on default zero-values, and be explicit with state-root
This commit is contained in:
Diederik Loerakker 2019-06-22 17:38:30 +02:00 committed by Justin
parent c86108de00
commit b007d5aa92
1 changed files with 4 additions and 3 deletions
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7
specs/core/0_beacon-chain.md
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@ -180,9 +180,7 @@ The following values are (non-configurable) constants used throughout the specif
## Configuration
*Note*: The default mainnet configuration values are included here for spec-design purposes.
The different configurations for mainnet, testnets, and YAML-based testing can be found in the `configs/constant_presets/` directory.
These configurations are updated for releases, but may be out of sync during `dev` changes.
*Note*: The default mainnet configuration values are included here for spec-design purposes. The different configurations for mainnet, testnets, and YAML-based testing can be found in the `configs/constant_presets/` directory. These configurations are updated for releases and may be out of sync during `dev` changes.
### Misc
@ -292,6 +290,8 @@ The following types are [SimpleSerialize (SSZ)](../simple-serialize.md) containe
*Note*: The definitions are ordered topologically to facilitate execution of the spec.
*Note*: Fields missing in container instantiations default to their zero value.
### Misc dependencies
#### `Fork`
@ -1585,6 +1585,7 @@ def process_block_header(state: BeaconState, block: BeaconBlock) -> None:
state.latest_block_header = BeaconBlockHeader(
slot=block.slot,
parent_root=block.parent_root,
state_root=ZERO_HASH, # Overwritten in next `process_slot` call
body_root=hash_tree_root(block.body),
)
# Verify proposer is not slashed