DID
A DID is a decentralized identifier: a stable identifier for an entity or signer that can be referenced in provenance statements without depending on a centralized account ID.
In eqty_sdk, DIDs matter because signed statements, signer identities, and related attestations need a durable identifier that can travel with the manifest. If you are creating or using Signer objects, generating verifier-friendly manifests, or attaching identity information to statements, you will encounter DIDs.
Most users do not need to construct DIDs manually very often, but it is useful to understand that they are the identity layer behind signers and signed provenance records.