DIDs are identifiers that enable verifiable, decentralized digital identities. A DID refers to any subject (e.g. a person, group, organization, abstract entity, etc.) as determined by the controller of the DID.Specifically, DIDs are URIs (unique digital addresses) that associate a DID subject with a DID document allowing trustable interactions associated with that subject. Similar to a URL, when you resolve a DID, you receive a DID document in JSON, JSON-LD, or similar format.
A DID method (and its spec) defines the precise operations by which DIDs and DID documents are created, resolved, updated, and deactivated.There are currently more than 150 DID methods out there, which can be categorized into 4 main types based on their storage method:
Centralized: relies on a Web2 server
Blockchain-based: the “original” DID method involving a blockchain
Hybrid: uses decentralized storage to store its documents
Static: no data registry is required; can be created and resolved by encoding/decoding data directly.
Terminal 3 currently provides a custom did:t3n DID.
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