# Permissionless Fault Proofs Enabled (/docs/changelog/completed-notifications/permissionless-fault-proofs-enabled)

Posted: January 8, 2025 | Effective: January 8, 2025

On Wednesday, January 8, 2025, Unichain Sepolia successfully [enabled permissionless fault proofs](https://twitter.com/unichain/status/1877032006803976327).

> [!NOTE]
> You can read more about permissionless fault proofs in the [technical specifications](https://specs.optimism.io/fault-proof/index.html).