DIDs are an effort by the W3C Credentials Community Group and the wider Internet identity community to define identifiers that can be registered, updated, resolved, and revoked without any dependency on a central authority or intermediary.

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Pattern for Local Unique Identifiers

Local identifiers in Decentralized Identifier should match this regular expression:

Example Local Unique Identifier
sov:WRfXPg8dantKVubE3HX8pw   Resolve
Pattern for CURIES

Compact URIs (CURIEs) constructed from Decentralized Identifier should match this regular expression:

Example CURIE
MIRIAM Namespace Embedded in LUI
The legacy MIRIAM standard for generating CURIEs with this resource annotates the namespaceEmbeddedInLUI as true. This means that you may see local unique identifiers that include a redundant prefix and delimiter (also known as a banana) and therefore look like a CURIE. For Decentralized Identifier, the banana looks like did:. Therefore, you may see local unique identifiers for this resource that look like did:sov:WRfXPg8dantKVubE3HX8pw (instead of the canonical form sov:WRfXPg8dantKVubE3HX8pw) and CURIEs for this resource that look like did:did:sov:WRfXPg8dantKVubE3HX8pw (instead of the canonical form did:sov:WRfXPg8dantKVubE3HX8pw). The Bioregistry will automatically strip off the banana when standardizing local unique identifiers and CURIEs.
Metaregistry Decentralized Identifier

The metaregistry provides mappings between the Bioregistry and other registries. There are 2 mappings to external registries for this resource with 1 unique external prefixes.

Registry Name Registry Metaprefix External Prefix Curate
Identifiers.org Identifiers.org logo miriam did
N2T Name-to-Thing logo n2t did

A provider turns a local unique identifiers from a resource into a URI. Many providers are also resolvable as URLs (i.e., they can be used in a web browser).

The local unique identifier sov:WRfXPg8dantKVubE3HX8pw is used to demonstrate the providers available for Decentralized Identifier. A guide for curating additional providers can be found here.

Name Metaprefix URI
Decentralized Identifier did https://uniresolver.io/#did:sov:WRfXPg8dantKVubE3HX8pw
Bioregistry bioregistry https://bioregistry.io/did:sov:WRfXPg8dantKVubE3HX8pw
Identifiers.org miriam https://identifiers.org/did:sov:WRfXPg8dantKVubE3HX8pw
Name-to-Thing n2t https://n2t.net/did:sov:WRfXPg8dantKVubE3HX8pw