Chain Recovery

Overview

Context and purpose

Chain recovery restores a blockchain to a functioning canonical state after normal consensus or node operation fails. Depending on the incident, operators may restart clients, repair databases, distribute a trusted snapshot, deploy corrected software, coordinate a checkpoint, or activate governance-approved recovery rules. Recovery can preserve all accepted history or intentionally resume from an earlier state. The latter may invalidate blocks and transactions users previously observed, creating accounting, replay, and bridge-consistency risks across connected systems. Integrators should wait for an authoritative release, verify binaries and restart height, compare multiple nodes, and identify any rollback boundary. Deposits, withdrawals, nonces, and cross-chain messages around the incident must be reconciled individually before processing resumes. Applications affected by Chain Recovery should roll dependent state backward idempotently and then replay the new canonical history. Credits, confirmations, balances, and callbacks must not be duplicated when the same transaction reappears in a different block.

How it works

Chain recovery is the process by which network operation resumes after a halt, fork or major disruption. Operators may need to reconcile canonical history and confirmation assumptions before normal service resumes.

Practical checks and failure points

Reindex affected blocks, compare checkpoints and keep an incident log before re-enabling large-value settlement.

Related concepts

Blockchain Synchronization · Chain ID