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capella: add withdrawal boost factor constant #3073

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capella: add withdrawal boost factor constant #3073

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37799c2
capella: add withdrawal boost factor constant
q9f Nov 1, 2022
204257d
capella: add withdrawal boost factor presets
q9f Nov 1, 2022
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2 changes: 2 additions & 0 deletions presets/mainnet/capella.yaml
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Expand Up @@ -4,6 +4,8 @@
# ---------------------------------------------------------------
# 2**8 (= 256) withdrawals
MAX_PARTIAL_WITHDRAWALS_PER_EPOCH: 256
# 1
WITHDRAWAL_BOOST_FACTOR: 1


# State list lengths
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2 changes: 2 additions & 0 deletions presets/minimal/capella.yaml
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Expand Up @@ -4,6 +4,8 @@
# ---------------------------------------------------------------
# [customized] 16 for more interesting tests at low validator count
MAX_PARTIAL_WITHDRAWALS_PER_EPOCH: 16
# [customized] 10 for more interesting tests ;)
WITHDRAWAL_BOOST_FACTOR: 10


# State list lengths
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3 changes: 3 additions & 0 deletions specs/capella/beacon-chain.md
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Expand Up @@ -80,6 +80,7 @@ We define the following Python custom types for type hinting and readability:
| Name | Value |
| - | - |
| `MAX_PARTIAL_WITHDRAWALS_PER_EPOCH` | `uint64(2**8)` (= 256) |
| `WITHDRAWAL_BOOST_FACTOR` | `1` |

### State list lengths

Expand Down Expand Up @@ -256,6 +257,8 @@ class BeaconState(Container):
def withdraw_balance(state: BeaconState, validator_index: ValidatorIndex, amount: Gwei) -> None:
# Decrease the validator's balance
decrease_balance(state, validator_index, amount)
# Apply the boost factor for custom network configurations
amount *= WITHDRAWAL_BOOST_FACTOR
# Create a corresponding withdrawal receipt
withdrawal = Withdrawal(
index=state.next_withdrawal_index,
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