Ankr joins sBTC signer set to enhance Bitcoin security on Stacks

Ankr, the decentralized infrastructure provider, has been added to the sBTC signer set on Stacks, joining a small group of operators tasked with validating and securing Bitcoin-pegged transactions on the Layer 2 network. For those unfamiliar with the setup: sBTC is a token on Stacks that’s pegged 1:1 to Bitcoin. The signer set is the group of operators who collectively approve the minting and movement of sBTC, functioning like a multi-signature committee that keeps the peg honest. How the signer model works The initial sBTC signer set launched with 14 operators after one original nominee withdrew before go-live. Transactions require approval from at least 10 of those 14 signers, a threshold designed to balance security with operational efficiency. Signers aren’t chosen at random. Operators must meet strict criteria around uptime, geographic diversity, and technical capability. sBTC deposits went live on mainnet on December 17, 2024, with withdrawal functionality expected to follow in March 2025. What Ankr brings to the table Ankr operates a Bitcoin Secured Infrastructure platform that provides RPC services, validator solutions, and customizable tooling aimed at Bitcoin-related prot...