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Fix some spellings

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Ben Edgington
2022-05-24 16:44:39 +01:00
parent 66433b95e3
commit f0d4694ee9
2 changed files with 3 additions and 4 deletions
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1
bin/build/spellcheck_my_words.txt
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@@ -91,7 +91,6 @@ MEV
Math
Medalla
Merkle
Merkleised
Merkleization
Merkleize
Merkleized

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src/book.md
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@@ -4351,7 +4351,7 @@ For a detailed analysis of these parameters, see this [article](https://ethresea
##### `SLOTS_PER_HISTORICAL_ROOT`
There have been several redesigns of the way the beacon chain stores its past history. The current design is a [double batched accumulator](https://ethresear.ch/t/double-batched-merkle-log-accumulator/571?u=benjaminion). The block root and state root for every slot are stored in the state for `SLOTS_PER_HISTORICAL_ROOT` slots. When that list is full, both lists are Merkleised into a single Merkle root, which is added to the ever-growing `state.historical_roots` list.
There have been several redesigns of the way the beacon chain stores its past history. The current design is a [double batched accumulator](https://ethresear.ch/t/double-batched-merkle-log-accumulator/571?u=benjaminion). The block root and state root for every slot are stored in the state for `SLOTS_PER_HISTORICAL_ROOT` slots. When that list is full, both lists are Merkleized into a single Merkle root, which is added to the ever-growing `state.historical_roots` list.
#### State list lengths
@@ -6197,7 +6197,7 @@ def get_randao_mix(state: BeaconState, epoch: Epoch) -> Bytes32:
return state.randao_mixes[epoch % EPOCHS_PER_HISTORICAL_VECTOR]
```
Randao mixes are stored in a circular list of length [`EPOCHS_PER_HISTORICAL_VECTOR`](/part3/config/preset#epochs_per_historical_vector). They are used when calculating the [seed](#get_seed) for assigning beacon proposers and committees.
RANDAO mixes are stored in a circular list of length [`EPOCHS_PER_HISTORICAL_VECTOR`](/part3/config/preset#epochs_per_historical_vector). They are used when calculating the [seed](#get_seed) for assigning beacon proposers and committees.
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@@ -6265,7 +6265,7 @@ def get_seed(state: BeaconState, epoch: Epoch, domain_type: DomainType) -> Bytes
Used in [`get_beacon_committee()`](#def_get_beacon_committee), [`get_beacon_proposer_index()`](#def_get_beacon_proposer_index), and [`get_next_sync_committee_indices()`](#def_get_next_sync_committee_indices) to provide the randomness for computing proposers and committees. `domain_type` is [`DOMAIN_BEACON_ATTESTER`](/part3/config/constants#domain_beacon_attester), [`DOMAIN_BEACON_PROPOSER`](/part3/config/constants#domain_beacon_proposer), and [`DOMAIN_SYNC_COMMITTEE`](/part3/config/constants#domain_sync_committee) respectively.
Randao mixes are stored in a circular list of length [`EPOCHS_PER_HISTORICAL_VECTOR`](/part3/config/preset#epochs_per_historical_vector). The seed for an epoch is based on the randao mix from [`MIN_SEED_LOOKAHEAD`](/part3/config/preset#min_seed_lookahead) epochs ago. This is to limit the forward visibility of randomness: see the explanation there.
RANDAO mixes are stored in a circular list of length [`EPOCHS_PER_HISTORICAL_VECTOR`](/part3/config/preset#epochs_per_historical_vector). The seed for an epoch is based on the randao mix from [`MIN_SEED_LOOKAHEAD`](/part3/config/preset#min_seed_lookahead) epochs ago. This is to limit the forward visibility of randomness: see the explanation there.
The seed returned is not based only on the domain and the randao mix, but the epoch number is also mixed in. This is to handle the pathological case of no blocks being seen for more than two epochs, in which case we run out of randao updates. That could lock in forever a non-participating set of block proposers. Mixing in the epoch number means that fresh committees and proposers can continue to be selected.