MPC Wallet & Crypto Custody Infrastructure Development

Every custody architecture is ultimately answering one question: what has to go wrong for funds to be lost, and how many independent things have to go wrong at once. Traditional single-key custody has an uncomfortable answer — one compromised device, one coerced or careless employee, one lost backup. Multi-signature improves this by requiring several independent signatures, but does so on-chain, with the overhead and reduced privacy that comes with visibly broadcasting a multi-party approval structure to anyone watching the chain.

MPC (multi-party computation) solves the same underlying problem differently: the private key itself never exists in one place, even momentarily. Key shares are generated and held separately, and signing happens through a cryptographic protocol where parties jointly compute a valid signature without any of them — or an attacker who compromises one of them — ever reconstructing the full key. That means a compromised share alone is insufficient to move funds, the signing process works identically across chains instead of depending on each chain's own multi-sig implementation, and none of it is visible on-chain as a distinguishable multi-party structure.