fix: persist captured proof snapshot across restart#205
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Looks good to me. One deployment note: this changes the serialized ConsensusState format by adding proof_el_block_number/captured_bytes trailers. If nodes restart from state encoded before this PR, decode requires a migration/backward-compatible read path |
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Builds on #170.
This addresses #199.
Changes:
captured_bytestoConsensusStatethat contains a snapshot of the consensus state (withcaptured_bytesset toNone). This snapshot is taken incapture_state_root(). This snapshot is used to derive the fieldsproof_tree,state_root, andproof_validator_keys. This ensures that the frozen state root is not lost by a validator restart, especially at the epoch boundary.