did:scid

Protocolo de Identidade

A DID method specification developed by the Trust over IP (ToIP) DID SCID Task Force that enables any Self-Certifying Identifier (SCID) format to be expressed as a W3C-conformant DID; the proposed formats are did:scid:vh (did:webvh), did:scid:ke (did:webs / KERI AIDs) and did:scid:jl (did:jlinc). It is technically a metamethod: it defines a namespace plus an optional 'src' query parameter carrying the location of the verification metadata, and delegates format, resolution and verification to the underlying source DID method. The method is designed to address portability and third-party independence: a SCID binds cryptographically to its controlling keys, requires no registry for verification, and can be stored locally or multi-anchored across locations. Supports both "pure" peer-to-peer SCIDs and web-hosted SCIDs with optional location parameters.

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Detalhes

Licença Open specification (ToIP Confluence wiki; no reference implementation repository separately identified)
Status de Dev 🔨 Em desenvolvimento
Detalhe do Status de Dev WIP (specification under active development by ToIP DID SCID Task Force; not yet at Final status)
Proprietário Trust over IP (ToIP) Foundation — DID SCID Task Force; hosted under Linux Foundation; specification available on ToIP Confluence wiki
Proprietário - Lista
  • Trust Over IP Foundation
Órgão de Governança ToIP / LF Decentralized Trust (DID SCID Task Force, within the Technology Stack Working Group) | DIF (DID Methods Working Group — standardization proposal submitted)
Órgão de Governança - Lista
  • Decentralized Identity Foundation
País International (ToIP Foundation is Linux Foundation project; global contributor base)
Ano de Início 2024
Stack Language-agnostic specification (ABNF syntax definition only); resolution and verification reuse the source DID method's existing resolver code rather than introducing a new one (proposed formats: did:webvh, did:webs / KERI, did:jlinc); verification requires only access to the verification metadata — DID document and key event history
Financiamento Foundation (Linux Foundation / Trust over IP Foundation; member-funded)
Financiamento - Lista
  • Trust Over IP Foundation
Última Investigação 1 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: did:scidEsta ferramenta no centro e o que se relaciona diretamente com ela. Cada linha nomeia o tipo de relação.did:sciddid:vh (Outros que pretendem interoperar com ele)did:vhdid:cheqd (Base de, Primitiva de identidade para, Interopera com)did:cheqddid:peer (Baseado em, Primitiva de identidade para, Identifica-se via, Requer)did:peerdid:plc (Baseado em)did:plcdid:webvh (Baseado em, Identifica-se via, Interopera com, Requer)did:webvhKERI (Baseado em, Identifica-se via, Interopera com, Requer)KERIDIDs (Está em conformidade com, Fala o protocolo)DIDsVCs (Está em conformidade com)VCsTrust Over IP Foundation (Desenvolvido por, Financiado por)Trust OverIP Foundationp2p-trust-stack (Primitiva de identidade para)p2p-trust-st…BlueSky (Interopera com)BlueSkyOOBI (Out-of-Band Introduction) Protocol (Requer)OOBI(Out-of-Band…
  • did:vh (Ferramenta): Outros que pretendem interoperar com ele
  • did:cheqd (Ferramenta): Base de, Primitiva de identidade para, Interopera com
  • did:peer (Ferramenta): Baseado em, Primitiva de identidade para, Identifica-se via, Requer
  • did:plc (Ferramenta): Baseado em
  • did:webvh (Ferramenta): Baseado em, Identifica-se via, Interopera com, Requer
  • KERI (Ferramenta): Baseado em, Identifica-se via, Interopera com, Requer
  • DIDs (Ferramenta): Está em conformidade com, Fala o protocolo
  • VCs (Ferramenta): Está em conformidade com
  • Trust Over IP Foundation (Organização): Desenvolvido por, Financiado por
  • p2p-trust-stack (Ferramenta): Primitiva de identidade para
  • BlueSky (Ferramenta): Interopera com
  • OOBI (Out-of-Band Introduction) Protocol (Ferramenta): Requer

Outras 4 entidades relacionadas não são desenhadas; veja a lista abaixo ou abra o Explorador de grafo.

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Domínios de Caso de Uso

Identidade e Confiança

Capacidades

Identidade soberana Portabilidade do grafo de confiança

Protocolo de Identidade Atributos

Proprietário - Lista
  • Trust Over IP Foundation
Origens Self-sovereign identity / DID ecosystem (motivated by the proliferation of SCID-based DID methods — did:peer, did:webs (KERI AIDs), did:webvh, did:jlinc, did:plc — each of which binds its identifier to a particular storage location; did:scid unifies them under a single W3C DID method that preserves their shared property, cryptographic binding to keys without registry dependency, while decoupling the identifier from where its verification metadata lives)
Banco de Dados N/A (verification requires no database; DID document and key event history carry all necessary information; multi-anchoring to multiple locations optional)
Linguagem de Consulta DID URL resolution (standard W3C DID resolution; location-parameterized variants resolve via HTTPS; pure peer-to-peer variants resolved from local storage)
Formatos de Dados W3C DID Document (JSON-LD); SCID verification metadata (format depends on SCID type: KERI OOBI data, did:peer microledger, etc.)
Suporte Móvel Library-level (any DID resolver implementation; no dedicated mobile app)
Suporte Web Yes (web-hosted SCIDs use HTTPS for DID document hosting; pure SCIDs are location-independent)
Aplicativos Nativos Library-level (embedded in DID resolver implementations; no standalone native app)
Termos Free / Open standard (ToIP specification; no licensing fees)
Financiamento - Lista
  • Trust Over IP Foundation
Fundos Unknown (ToIP Foundation member contributions; specific task force budget not disclosed)
Baseado Em W3C DID Core specification; RFC 3986 (URI syntax); source DID methods supplying its proposed formats — did:webvh (did:scid:vh), did:webs / KERI AIDs (did:scid:ke), did:jlinc (did:scid:jl); ToIP High Assurance VIDs Specification; W3C DID-Linked Resources (used for the optional cheqd blockchain hosting path)
Órgão de Governança - Lista
  • Decentralized Identity Foundation
Permissões Cryptographic Capabilities (key control determines all permissions; no ACL; delegation via key event history entries)
Autenticação e Identidade Self-Certifying Identifier (SCID) — identity derived from cryptographic key operations; no third party required for verification; portable across locations via multi-anchoring
Modelo de Armazenamento Local or distributed (pure SCIDs store verification metadata locally per peer; web-hosted SCIDs use HTTPS; multi-anchoring across multiple locations for resilience)
Interoperabilidade W3C DID ecosystem (compatible with any W3C DID consumer); designed as an interoperability layer over existing SCID-based methods rather than a competitor to them — it reuses their formats and resolver code instead of defining new ones. Proposed formats: did:webvh, did:webs / KERI AIDs, did:jlinc. ToIP ecosystem. Appendix B addresses Bluesky's requirement for permanent immutable account identifiers; Appendix D specifies using the cheqd blockchain as a DID host via DID-Linked Resources
Portabilidade de Dados Full portability (SCID is not bound to any location or provider; verification metadata portable; key rotation and revocation tracked in key event history)
Governança e Tomada de Decisão Foundation-governed (ToIP DID SCID Task Force under Linux Foundation governance; specification evolution via ToIP working group process)
Maturidade / Padronização do Protocolo WIP (ToIP DID SCID Task Force specification; under active development; not yet submitted to W3C DID Methods Registry or other formal body)
Padrões de Identidade W3C DID Core (Decentralized Identifiers 1.0); KERI (Key Event Receipt Infrastructure) for KERI-based variants; ToIP High Assurance VIDs
Padrões de Identidade - Lista
Métodos DID Suportados did:scid (defines this method). Proposed format registry (Appendix A, still a TODO): did:scid:vh → did:webvh verification metadata format; did:scid:ke → did:webs / KERI AID format; did:scid:jl → did:jlinc format. did:peer is explicitly NOT proposed as a format — the spec states did:scid:pr is not proposed because both vh and ke can also be used peer-to-peer while offering key rotation and other security features did:peer lacks
Métodos DID Suportados - Lista
Gestão de Chaves User-controlled (SCID cryptographically bound to controlling keys; key rotation tracked in key event history; pre-rotation supported via KERI-style commitments)
Tipos de Credenciais N/A (DID method specification; does not define credential types; compatible with W3C VCs issued against did:scid identifiers)
Tipos de Credenciais - Lista
Método de Verificação Cryptographic signature verification (SCID binding verified against key event history; no external registry or blockchain required; pure function on DID document + key history)
Recursos de Privacidade Unlinkability (pairwise DIDs possible; pure peer-to-peer SCID not published to any registry); minimal disclosure (verification metadata portable without revealing usage context)
Métodos de Autenticação Cryptographic signatures (DID-based key control; challenge-response via standard DID authentication flows)
Mecanismo de Revogação Key event history (key rotation and revocation tracked in cryptographically chained key event log; KERI-style pre-rotation for forward secrecy)
Tipos de Agentes Suportados Humans (individuals), Organizations, Devices/IoT, Services/APIs, Autonomous agents — any entity that can control cryptographic keys
Tipos de Carteira/Cliente SDK/Library integration (any DID resolver library); compatible with KERI wallets and standard W3C DID wallets
Mecanismos de Recuperação Pre-rotation / Key event history (recovery keys committed in advance via KERI-style pre-rotation; M-of-N multisignature revocation possible with KERI variants)
Conformidade / Regulamentações Unknown (specification does not address specific regulatory compliance; compatible with eIDAS and GDPR-aligned DID implementations)
Protocolos de Troca de Credenciais Compatible with DIDComm, OIDC4VC, and any protocol supporting W3C DID resolution
Protocolos de Troca de Credenciais - Lista
Estrutura de Confiança Cryptographic verification only (no external trust anchor required; trust established through cryptographic proof of key control; optional multi-anchoring for additional resilience)
Modelo de Custo Free (no blockchain fees; no registry fees; pure cryptographic verification)
Resistência à Censura High but host-dependent (no central authority controls identifier validity, and multi-anchoring across diverse locations raises the cost of suppression; however publicly resolvable use still requires reaching at least one DID host, so availability depends on the hosts chosen. Pure peer-to-peer SCIDs with locally held verification metadata require no external service at all)

Relacionamentos

Como esta ferramenta se conecta a outras ferramentas e organizações, a partir de relacionamentos revisados pelo responsável pelos dados do OpenHaven. Descrevem como os projetos se conectam, não a qualidade deles.

Administrado por
  • Decentralized Identity Foundation
Baseado em
Desenvolvido por
  • Trust Over IP Foundation
Está em conformidade com
Fala o protocolo
Financiado por
  • Trust Over IP Foundation
Identifica-se via
Requer
Interopera com
Base de
Outros que pretendem interoperar com ele
Primitiva de identidade para