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Fixes to PoW receipt roots

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Justin 2018-11-24 21:41:53 +00:00 committed by GitHub
parent 4be17dea14
commit 755eadb20a
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1 changed files with 10 additions and 8 deletions
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18
specs/core/0_beacon-chain.md
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@ -238,7 +238,7 @@ The `BeaconState` has the following fields:
'genesis_time': 'uint64',
# PoW receipt root
'processed_pow_receipt_root': 'hash32',
'candidate_pow_receipt_roots': [CandidateReceiptRootRecord],
'candidate_pow_receipt_roots': [CandidatePoWReceiptRootRecord],
# Parameters relevant to hard forks / versioning.
# Should be updated only by hard forks.
'pre_fork_version': 'uint64',
@ -311,12 +311,14 @@ A `ShardReassignmentRecord` object has the following fields:
}
```
A `CandidateReceiptRootRecord` object contains the following fields:
A `CandidatePoWReceiptRootRecord` object contains the following fields:
```python
{
'receipt_root': 'hash32',
'votes': 'uint64',
# Candidate PoW receipt root
'candidate_pow_receipt_root': 'hash32',
# Vote count
'votes': 'uint64'
}
```
@ -618,7 +620,7 @@ If the user wishes to deposit more than `DEPOSIT_SIZE` ETH, they would need to m
* `initial_validator_entries` equal to the list of data records published as HashChainValue logs so far, in the order in which they were published (oldest to newest).
* `genesis_time` equal to the `time` value published in the log
* `pow_receipt_root` equal to the `receipt_root` value published in the log
* `processed_pow_receipt_root` equal to the `receipt_root` value published in the log
### On startup
@ -640,7 +642,7 @@ A valid block with slot `0` (the "genesis block") has the following values. Othe
`STARTUP_STATE_ROOT` is the root of the initial state, computed by running the following code:
```python
def on_startup(initial_validator_entries: List[Any], genesis_time: uint64, pow_receipt_root: Hash32) -> BeaconState:
def on_startup(initial_validator_entries: List[Any], genesis_time: uint64, processed_pow_receipt_root: Hash32) -> BeaconState:
# Induct validators
validators = []
for pubkey, proof_of_possession, withdrawal_credentials, \
@ -679,7 +681,7 @@ def on_startup(initial_validator_entries: List[Any], genesis_time: uint64, pow_r
validator_set_delta_hash_chain=bytes([0] * 32), # stub
current_exit_seq=0,
genesis_time=genesis_time,
processed_pow_receipt_root=pow_receipt_root,
processed_pow_receipt_root=processed_pow_receipt_root,
candidate_pow_receipt_roots=[],
pre_fork_version=INITIAL_FORK_VERSION,
post_fork_version=INITIAL_FORK_VERSION,
@ -828,7 +830,7 @@ Verify that `BLSVerify(pubkey=get_beacon_proposer(state, block.slot).pubkey, dat
### Process PoW receipt root
If `block.candidate_pow_receipt_root` is `x.receipt_root` for some `x` in `state.candidate_pow_receipt_roots`, set `x.votes += 1`. Otherwise, append to `state.candidate_pow_receipt_roots` a new `CandidateReceiptRootRecord(receipt_root=block.candidate_pow_receipt_root, votes=1)`.
If `block.candidate_pow_receipt_root` is `x.candidate_pow_receipt_root` for some `x` in `state.candidate_pow_receipt_roots`, set `x.votes += 1`. Otherwise, append to `state.candidate_pow_receipt_roots` a new `CandidatePoWReceiptRootRecord(candidate_pow_receipt_root=block.candidate_pow_receipt_root, votes=1)`.
### Process penalties, logouts and other special objects