Starknet governs its validity‑proof system through smart contracts

Quotes that support claims

While the system still allows intervention from a security council, it has implemented a fully functional validity proof system governed by smart contracts.

It further noted that they achieved this decentralization milestone by implementing changes such as building censorship-avoidance mechanisms and creating a security council. The system now operates with a fully functional validity proof mechanism governed by smart contracts, while still permitting intervention from a security council.