TechFlow news, January 11 — According to an official announcement, Starknet, the Ethereum L2 network, has released a post-mortem report on Monday's brief mainnet outage. The incident was caused by a state inconsistency between the execution layer (blockifier) and the proof layer: under a specific combination of cross-function calls and rollbacks, the execution layer incorrectly recorded state writes that had already been rolled back, leading to abnormal transaction execution. These transactions did not achieve finality on L1.
This event triggered a block reorganization, rolling back approximately 18 minutes of on-chain activity. This marks the second major disruption in 2025. Previously, in September, a sequencer vulnerability caused over five hours of downtime and rolled back about one hour of on-chain activity.
