A discount applied to collateral value so a protocol or desk has a buffer against a sudden print.

An early Bitcoin contributor and the first known recipient of a Bitcoin transaction from Satoshi.

A rule change that old software will reject. Nodes must upgrade or they follow a different chain.

A dedicated device designed to keep signing keys isolated from a general-purpose computer and to authorize transactions through a controlled interface.

A fixed-length fingerprint of data produced by a one-way cryptographic function, used to detect tampering and link blocks.

The act of running data through a hash function so the output changes if even one input bit changes.

Settlement risk named after a bank failure where one side of FX paid and the other did not.