BlockBeats News: On January 11, Starknet, an Ethereum Layer 2 network, released a post-mortem analysis report regarding the brief mainnet outage on Monday of this week. The incident was caused by a state inconsistency between the execution layer (blockifier) and the proving layer. Specifically, under certain combinations of cross-function calls and rollbacks, the execution layer incorrectly recorded state writes that had already been rolled back, leading to abnormal transaction execution. The affected transactions did not receive finality confirmation on Layer 1.
This incident triggered a blockchain reorganization, rolling back approximately 18 minutes of on-chain activity. This marks the second major disruption since 2025, following an outage in September caused by a sequencer vulnerability, which led to over 5 hours of downtime and the rollback of about 1 hour of on-chain activity.