From fbbb363e71c8b5e24ac6098328f1bac949fc7d34 Mon Sep 17 00:00:00 2001 From: vbuterin Date: Thu, 7 Mar 2019 23:39:12 -0600 Subject: [PATCH] Cannot exit until 2048 epochs (#675 item 21) See #675 item 21 --- specs/core/0_beacon-chain.md | 3 +++ 1 file changed, 3 insertions(+) diff --git a/specs/core/0_beacon-chain.md b/specs/core/0_beacon-chain.md index 898fc3c86e..69a7f1ffa2 100644 --- a/specs/core/0_beacon-chain.md +++ b/specs/core/0_beacon-chain.md @@ -230,6 +230,7 @@ Code snippets appearing in `this style` are to be interpreted as Python code. | `EPOCHS_PER_ETH1_VOTING_PERIOD` | `2**4` (= 16) | epochs | ~1.7 hours | | `SLOTS_PER_HISTORICAL_ROOT` | `2**13` (= 8,192) | slots | ~13 hours | | `MIN_VALIDATOR_WITHDRAWABILITY_DELAY` | `2**8` (= 256) | epochs | ~27 hours | +| `PERSISTENT_COMMITTEE_PERIOD` | `2**11` (= 2,048) | epochs | 9 days | ### State list lengths @@ -1915,6 +1916,8 @@ def process_exit(state: BeaconState, exit: VoluntaryExit) -> None: assert validator.exit_epoch > get_delayed_activation_exit_epoch(get_current_epoch(state)) # Exits must specify an epoch when they become valid; they are not valid before then assert get_current_epoch(state) >= exit.epoch + # Must have been in the validator set long enough + assert get_current_epoch(state) - validator.activation_epoch >= PERSISTENT_COMMITTEE_PERIOD # Verify signature assert bls_verify( pubkey=validator.pubkey,