Secure Digital Asset Custody

Custody, the safe-keeping of digital assets, is at the core of Copper's offering. Copper uses Multi-Party Computation (MPC) technology to deliver secure digital asset custody to institutional clients.

Copper’s unique approach to MPC

MPC technology delivers security, speed, efficiency and convenience to enable clients to interact with the digital asset ecosystem from Copper's secure custody.

With MPC technology, the client’s vault is controlled by three individual shards that are created and held in isolation at all times by three independent parties.

1 Client

2 Copper

3 Trusted Third Party (TTP)

MPC technology provides enhanced security as no private key is ever created or reassembled for signing.

This prevents the risk of a central point of failure

Each shard is created and stored on an application called Copper Unlimited and can be kept offline and optically airgapped at all times.

Each shard is created and stored using Copper Unlimited and can be kept offline and optically airgapped at all times.

There is no need for the shard to come online to enable the signing of a transaction given the shards communicate via encrypted QR codes.

Copper operates a two of three signing quorum to move the assets.

The benefit of operating a two of three signing quorum is that a natural redundancy is built into the architecture, (i.e no party needs to keep copies of each other’s shards) meaning there is no central point of failure.

Most other solutions, other types of MPC or Multi-Signature, often utilise a 3 of 3 signing quorum. This means a centralised back-up is required, which generates a central point of failure.

Learn more about MPC technology