LinkedClaims

Protocolo Semântico e de Dados

An open specification from DIF Labs defining the minimum requirements for a claim to be linkable to other claims: a claim MUST have a subject that is any valid URI, MUST itself carry a well-formed URI identifier, and MUST be cryptographically signed. Because a claim's subject may itself be a claim, endorsements, corroborations, disputes and ratings can layer on top of one another to form a cross-domain web of trust. LinkedClaims does not replace existing credential formats — it defines profiles and mappings so that existing data structures can be linked together without changing their native formats.

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Detalhes

Licença Open specification under DIF process; feedback via GitHub Issues at decentralized-identity/labs-linkedclaims. No licence stated on the specification page
Status de Dev 📝 Rascunho
Proprietário Decentralized Identity Foundation (DIF) — Linked Claim Incubation Lab. Editors: Golda Velez, Andor Kesselman. Authors: Golda Velez, Agnes Koinange, Phil Long. Associated with the LinkedTrust project
Proprietário - Lista
  • Decentralized Identity Foundation
Órgão de Governança DIF (Linked Claim Incubation Lab)
País International (DIF is globally distributed; LinkedTrust is headquartered in Tucson, Arizona, USA with a global team)
Stack Language-agnostic specification. Examples use JSON-LD with Ed25519Signature2020 proofs; a minimal conformant claim is plain JSON with id, subject and signature
Financiamento Foundation — developed within DIF's Labs programme; no separate funding disclosed
Última Investigação 31 de jul. de 2026

Visão de topologia

Esta ferramenta no centro e o que se relaciona diretamente com ela. Cada linha nomeia o tipo de relação.

Visão de topologia: LinkedClaimsEsta ferramenta no centro e o que se relaciona diretamente com ela. Cada linha nomeia o tipo de relação.LinkedClaimsActivityPub (Pretende interoperar com, Base de)ActivityPubJSON-LD (Compõe-se com, Está em conformidade com)JSON-LDVCs (Compõe-se com)VCsDIDs (Está em conformidade com)DIDsDecentralized Identity Foundation (Desenvolvido por)DecentralizedIdentity Fou…
  • ActivityPub (Ferramenta): Pretende interoperar com, Base de
  • JSON-LD (Ferramenta): Compõe-se com, Está em conformidade com
  • VCs (Ferramenta): Compõe-se com
  • DIDs (Ferramenta): Está em conformidade com
  • Decentralized Identity Foundation (Organização): Desenvolvido por

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Rastreamento de procedência Formatos interoperáveis

Protocolo Semântico e de Dados Atributos

Proprietário - Lista
  • Decentralized Identity Foundation
Origens Web of trust / credibility assessment — motivated by the observation that cryptographic signing and blockchain validation alone do not establish whether a claim about the real world is credible, and that multiple projects had independently converged on the same addressable-claim pattern without a shared standard
Banco de Dados N/A — defines claim structure, not storage. Claims are retrieved from their URIs; a claim may be public or access-controlled, and private claims may be held in a wallet with public validations pointing at them
Linguagem de Consulta N/A — no query language defined; claims are dereferenced by URI
Formatos de Dados JSON at minimum (id, subject, signature); optionally JSON-LD with @context, and MAY be a W3C Verifiable Credential or similar credential format. Optional fields include statement, effectiveDate, source with digestMultibase, respondAt, aspect and confidence
Edição Colaborativa em Tempo Real N/A — claim format specification
Edição de Texto Rico N/A — a claim MAY carry a narrative statement, but no rich text model is defined
Suporte Móvel N/A — specification; private claims are described as wallet-held, implying mobile wallet contexts
Suporte Web Yes — claims are URI-addressable and retrieved over the web
Aplicativos Nativos N/A — specification
Termos Free / open specification; no fees
Fundos Unknown — no figures published
Baseado Em W3C Decentralized Identifiers (DID Core) for signer identification; RFC 3986 (URI syntax); optionally W3C Verifiable Credentials. Related work in progress: Progressive Trust, digest Multibase Hashlink, and an ActivityPub-compatible inbox
Compatibilidade com a Web Semântica Partial to Full depending on profile — the minimal conformant form is plain JSON with no @context and is therefore not RDF-interpretable. The advanced form uses JSON-LD with an @context and MAY be a W3C Verifiable Credential, in which case it is RDF-compatible. The specification does not mandate JSON-LD
Maturidade / Padronização do Protocolo Draft — a DIF Labs incubation specification, not a DIF ratified standard and not submitted to a formal standards body. Sections remain marked TBD and the document ends mid-topic. Reference implementation described as in development
Tipo de Vocabulário / Ontologia Trust / Attestation linking — a minimal structural vocabulary rather than a domain ontology. It specifies what makes a claim linkable (addressable subject, addressable identifier, cryptographic signature) and leaves claim semantics to whatever profile or credential vocabulary is layered on top. The specification defines the concept of a LinkedClaim profile for mapping existing data structures onto the model
Padrão de Uso Embedded in other protocols and mapped onto existing formats — the specification's stated approach is that the LinkedClaim pattern already exists in several independent projects, and that defining profiles or mappings for those existing data structures lets them link together without changing their native formats. An ActivityPub-compatible inbox for replies to claims is identified as related work

Relacionamentos

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Desenvolvido por
  • Decentralized Identity Foundation
Está em conformidade com
Pretende interoperar com
Compõe-se com
Base de