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eth2.0-specs
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This commit is contained in:
Justin Drake 2019-05-06 20:49:46 +01:00
parent f4db9ebae0
commit ea60fb632c
7 changed files with 25 additions and 25 deletions
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14
specs/core/0_beacon-chain.md
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@ -287,7 +287,7 @@ The types are defined topologically to aid in facilitating an executable version
# Epoch number
'epoch': 'uint64',
# Root of the previous crosslink
'parent_crosslink_root': 'bytes32',
'parent_root': 'bytes32',
# Root of the crosslinked shard data since the previous crosslink
'data_root': 'bytes32',
}
@ -369,7 +369,7 @@ The types are defined topologically to aid in facilitating an executable version
```python
{
'slot': 'uint64',
'parent_block_root': 'bytes32',
'parent_root': 'bytes32',
'state_root': 'bytes32',
'block_body_root': 'bytes32',
'signature': 'bytes96',
@ -536,7 +536,7 @@ The types are defined topologically to aid in facilitating an executable version
{
# Header
'slot': 'uint64',
'parent_block_root': 'bytes32',
'parent_root': 'bytes32',
'state_root': 'bytes32',
'body': BeaconBlockBody,
'signature': 'bytes96',
@ -1306,7 +1306,7 @@ def get_attesting_balance(state: BeaconState, attestations: List[PendingAttestat
def get_winning_crosslink_and_attesting_indices(state: BeaconState, epoch: Epoch, shard: Shard) -> Tuple[Crosslink, List[ValidatorIndex]]:
attestations = [a for a in get_matching_source_attestations(state, epoch) if a.data.crosslink.shard == shard]
crosslinks = list(filter(
lambda c: hash_tree_root(state.current_crosslinks[shard]) in (c.parent_crosslink_root, hash_tree_root(c)),
lambda c: hash_tree_root(state.current_crosslinks[shard]) in (c.parent_root, hash_tree_root(c)),
[a.data.crosslink for a in attestations]
))
# Winning crosslink has the crosslink data root with the most balance voting for it (ties broken lexicographically)
@ -1586,11 +1586,11 @@ def process_block_header(state: BeaconState, block: BeaconBlock) -> None:
# Verify that the slots match
assert block.slot == state.slot
# Verify that the parent matches
assert block.parent_block_root == signing_root(state.latest_block_header)
assert block.parent_root == signing_root(state.latest_block_header)
# Save current block as the new latest block
state.latest_block_header = BeaconBlockHeader(
slot=block.slot,
parent_block_root=block.parent_block_root,
parent_root=block.parent_root,
block_body_root=hash_tree_root(block.body),
)
# Verify proposer is not slashed
@ -1717,7 +1717,7 @@ def process_attestation(state: BeaconState, attestation: Attestation) -> None:
# Check FFG data, crosslink data, and signature
assert ffg_data == (data.source_epoch, data.source_root, data.target_epoch)
assert data.crosslink.epoch == min(data.target_epoch, parent_crosslink.epoch + MAX_EPOCHS_PER_CROSSLINK)
assert data.crosslink.parent_crosslink_root == hash_tree_root(parent_crosslink)
assert data.crosslink.parent_root == hash_tree_root(parent_crosslink)
assert data.crosslink.data_root == ZERO_HASH # [to be removed in phase 1]
assert verify_indexed_attestation(state, convert_to_indexed(state, attestation))
```

2
specs/core/0_fork-choice.md
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@ -38,7 +38,7 @@ All terminology, constants, functions, and protocol mechanics defined in the [Ph
Processing the beacon chain is similar to processing the Ethereum 1.0 chain. Clients download and process blocks and maintain a view of what is the current "canonical chain", terminating at the current "head". For a beacon block, `block`, to be processed by a node, the following conditions must be met:
* The parent block with root `block.parent_block_root` has been processed and accepted.
* The parent block with root `block.parent_root` has been processed and accepted.
* An Ethereum 1.0 block pointed to by the `state.latest_eth1_data.block_hash` has been processed and accepted.
* The node's Unix time is greater than or equal to `state.genesis_time + block.slot * SECONDS_PER_SLOT`.

10
specs/core/1_shard-data-chains.md
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@ -78,7 +78,7 @@ This document describes the shard data layer and the shard fork choice rule in P
'slot': Slot,
'shard': Shard,
'beacon_chain_root': Hash,
'parent_block_root': Hash,
'parent_root': Hash,
'data': ShardBlockBody,
'state_root': Hash,
'attestations': [ShardAttestation],
@ -93,7 +93,7 @@ This document describes the shard data layer and the shard fork choice rule in P
'slot': Slot,
'shard': Shard,
'beacon_chain_root': Hash,
'parent_block_root': Hash,
'parent_root': Hash,
'body_root': Hash,
'state_root': Hash,
'attestations': [ShardAttestation],
@ -201,7 +201,7 @@ def get_shard_header(block: ShardBlock) -> ShardBlockHeader:
slot: block.slot,
shard: block.shard,
beacon_chain_root: block.beacon_chain_root,
parent_block_root: block.parent_block_root,
parent_root: block.parent_root,
body_root: hash_tree_root(block.body),
state_root: block.state_root,
attestations: block.attestations,
@ -296,11 +296,11 @@ def is_valid_shard_block(beacon_blocks: List[BeaconBlock],
# Check parent block
if block.slot == PHASE_1_GENESIS_SLOT:
assert candidate.parent_block_root == ZERO_HASH
assert candidate.parent_root == ZERO_HASH
else:
parent_block = next(
block for block in valid_shard_blocks if
signing_root(block) == candidate.parent_block_root
signing_root(block) == candidate.parent_root
, None)
assert parent_block != None
assert parent_block.shard == block.shard

4
specs/validator/0_beacon-chain-validator.md
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@ -152,7 +152,7 @@ Set `block.slot = slot` where `slot` is the current slot at which the validator
##### Parent root
Set `block.parent_block_root = signing_root(parent)`.
Set `block.parent_root = signing_root(parent)`.
##### State root
@ -275,7 +275,7 @@ Set `attestation_data.crosslink.shard = shard` where `shard` is the shard associ
##### Previous crosslink root
Set `attestation_data.parent_crosslink_root = hash_tree_root(head_state.current_crosslinks[shard])`.
Set `attestation_data.parent_root = hash_tree_root(head_state.current_crosslinks[shard])`.
##### Crosslink data root

2
test_libs/pyspec/tests/block_processing/test_process_block_header.py
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@ -55,7 +55,7 @@ def test_invalid_slot(state):
def test_invalid_parent_block_root(state):
block = build_empty_block_for_next_slot(state)
block.parent_block_root = b'\12' * 32 # invalid prev root
block.parent_root = b'\12' * 32 # invalid prev root
pre_state, post_state = run_block_header_processing(state, block, valid=False)
return pre_state, block, None

12
test_libs/pyspec/tests/helpers.py
View File

@ -128,7 +128,7 @@ def build_empty_block_for_next_slot(state):
previous_block_header = deepcopy(state.latest_block_header)
if previous_block_header.state_root == spec.ZERO_HASH:
previous_block_header.state_root = state.hash_tree_root()
empty_block.parent_block_root = signing_root(previous_block_header)
empty_block.parent_root = signing_root(previous_block_header)
return empty_block
@ -155,7 +155,7 @@ def build_attestation_data(state, slot, shard):
assert state.slot >= slot
if slot == state.slot:
block_root = build_empty_block_for_next_slot(state).parent_block_root
block_root = build_empty_block_for_next_slot(state).parent_root
else:
block_root = get_block_root_at_slot(state, slot)
@ -185,7 +185,7 @@ def build_attestation_data(state, slot, shard):
shard=shard,
epoch=min(slot_to_epoch(slot), crosslinks[shard].epoch + MAX_EPOCHS_PER_CROSSLINK),
data_root=spec.ZERO_HASH,
parent_crosslink_root=hash_tree_root(crosslinks[shard]),
parent_root=hash_tree_root(crosslinks[shard]),
),
)
@ -240,12 +240,12 @@ def get_valid_proposer_slashing(state):
header_1 = BeaconBlockHeader(
slot=slot,
parent_block_root=ZERO_HASH,
parent_root=ZERO_HASH,
state_root=ZERO_HASH,
block_body_root=ZERO_HASH,
body_root=ZERO_HASH,
)
header_2 = deepcopy(header_1)
header_2.parent_block_root = b'\x02' * 32
header_2.parent_root = b'\x02' * 32
header_2.slot = slot + 1
domain = get_domain(

6
test_libs/pyspec/tests/test_sanity.py
View File

@ -68,7 +68,7 @@ def test_empty_block_transition(state):
state_transition(test_state, block)
assert len(test_state.eth1_data_votes) == len(state.eth1_data_votes) + 1
assert get_block_root_at_slot(test_state, state.slot) == block.parent_block_root
assert get_block_root_at_slot(test_state, state.slot) == block.parent_root
return state, [block], test_state
@ -82,7 +82,7 @@ def test_skipped_slots(state):
assert test_state.slot == block.slot
for slot in range(state.slot, test_state.slot):
assert get_block_root_at_slot(test_state, slot) == block.parent_block_root
assert get_block_root_at_slot(test_state, slot) == block.parent_root
return state, [block], test_state
@ -96,7 +96,7 @@ def test_empty_epoch_transition(state):
assert test_state.slot == block.slot
for slot in range(state.slot, test_state.slot):
assert get_block_root_at_slot(test_state, slot) == block.parent_block_root
assert get_block_root_at_slot(test_state, slot) == block.parent_root
return state, [block], test_state