Trust Registry Query Protocol

Protocolo de Identidad

Lightweight, read-only protocol for making fast, efficient queries against authoritative trust registries to verify whether an entity is authorized to take an action under a specific governance framework. The fundamental query is: "Does entity X hold authorization Y under governance framework Z?" Includes additional query types for retrieving registry metadata, supported authorization namespaces, and registry-of-registries relationships. Designed as "DNS for trust domains" — a standard data model, query vocabulary, and transport binding any ecosystem can implement regardless of internal trust architecture (X.509, OpenID Federation, EBSI Trust Chains, TRAIN, blockchains, etc.)

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Detalles

Licencia Spec: open under ToIP IPR framework; multiple independent implementations including archetech/archon-trust-registry
Estado de Desarrollo 🔍 Revisión
Detalle del Estado de Desarrollo Public Review 02 of V2.0 (Dec 2025); core specification separated from transport bindings; initial REST/HTTPS binding
Propietario Trust Over IP Foundation (project of Linux Foundation Decentralized Trust); developed by the Trust Registry Task Force (TRTF) within the Technology Stack Working Group
Órgano de Gobierno ToIP / LF Decentralized Trust (Trust Registry Task Force, within the Technology Stack Working Group)
Órgano de Gobierno - Lista
  • Trust Over IP Foundation
País International (Linux Foundation; global membership)
Año de Inicio 2021
Stack Specification only; reference implementations expected via OpenAPI 3.0 client/server code generation; HTTPS as initial transport binding; future bindings to DIDComm and TSP under consideration
Financiamiento Trust Over IP Foundation member contributions
Última Investigación 1 jul 2026

Vista de topología

Esta herramienta en el centro y lo que se relaciona directamente con ella. Cada línea nombra el tipo de relación.

Vista de topología: Trust Registry Query ProtocolEsta herramienta en el centro y lo que se relaciona directamente con ella. Cada línea nombra el tipo de relación.TrustRegistry Qu…ACDC (Authentic Chained Data Containers) (Se compone con)ACDC(Authentic C…DIDs (Cumple con)DIDsVCs (Cumple con)VCsTrust Over IP Foundation (Administrado por)Trust OverIP Foundation

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Dominios de Caso de Uso

Identidad y Confianza

Capacidades

Portabilidad del grafo de confianza Divulgación contextual

Protocolo de Identidad Atributos

Orígenes ToIP TRTF — formed Summer 2021 in response to COVID-era cross-jurisdiction digital health credential verification needs
Base de Datos N/A — TRQP queries existing trust registry systems-of-record; storage is registry-side concern; bridges adapt diverse backends including X.509 PKI, OpenID Federations, EBSI Trust Chains, TRAIN, and EU Trusted Lists
Lenguaje de Consulta TRQP query types (Authorization, Recognition, Description) expressed as OpenAPI-defined REST endpoints over HTTPS; not a general query language but a small fixed set of typed queries
Formatos de Datos Authority statements as semantic triples (authority, entity, assertion); REST/HTTPS binding follows OpenAPI Specification 3.1.0; assertions in three categories (descriptions, authorizations, recognitions)
Soporte Móvil Yes — HTTPS-based; usable from any mobile client capable of HTTPS
Soporte Web Yes — primary transport binding is REST/HTTPS; future bindings to DIDComm and TSP planned
Aplicaciones Nativas Implementation-dependent — OpenAPI 3.0 specification enables code generation for clients in any major language; wallet integrations expected for credential verification flows
Términos Open standard, free to implement (under ToIP IPR framework)
Fondos Unknown — ToIP/LF Decentralized Trust member-fee funded; specific TRTF (Trust Registry Task Force) budget not separately published
Basado En W3C DIDs (for authority and entity identifiers); OpenAPI Specification 3.1.0 (for REST binding); ABNF for authorization assertion strings
Órgano de Gobierno - Lista
  • Trust Over IP Foundation
Permisos Read-only protocol — no write permissions defined; create/update/delete reserved for future protocol versions if demand emerges
Autenticación e Identidad Authority and entity in authority statements identified by W3C DIDs (or KERI AIDs / HTTPS URLs); cryptographic verification of authority statements
Modelo de Almacenamiento Read-only query protocol — does not specify storage; bridges adapt to existing systems of record (databases, X.509 hierarchies, OpenID Federations, blockchains)
Interoperabilidad Designed for inter-ecosystem authority verification across heterogeneous trust architectures; bridge architecture allows existing infrastructure to be queried via uniform protocol
Portabilidad de Datos Authority statements queryable across registries; recognition queries enable building federated trust graphs across registries; bridges enable cross-system queries
Gobernanza y Toma de Decisiones ToIP TRTF governance — open meetings, consensus-driven, IPR-protected under LF Decentralized Trust; each trust registry's authority statements derive from its governance framework rather than from TRQP itself
Madurez del Protocolo / Estandarización Public Review 02 of V2.0 (Dec 2025); Implementers Draft phase
Estándares de Identidad W3C DIDs; W3C Verifiable Credentials (commonly the credentials whose issuers are verified via TRQP); ToIP Trust Registry data model
Estándares de Identidad - Lista
Métodos DID Soportados Any (method-agnostic)
Gestión de Claves Out of scope for TRQP itself — each system of record manages its own keys; TRQP queries verify against the trust root of the relying registry
Tipos de Credenciales N/A — TRQP enables querying who is authorized to issue or verify credentials, but does not itself convey credentials
Tipos de Credenciales - Lista
Método de Verificación Cryptographic verification of authority DID signatures on authority statements
Funciones de Privacidad Read-only by design (no PII required for queries); transport-binding-dependent metadata privacy (HTTPS for initial binding; future DIDComm and TSP bindings would offer enhanced privacy)
Métodos de Autenticación Transport-binding-dependent — HTTPS TLS for initial binding; future DIDComm and TSP bindings would use those protocols' authentication mechanisms
Mecanismo de Revocación Authority-statement revocation handled by underlying systems-of-record — TRQP queries the current state of the registry; registry policies define how revocation is reflected in query responses
Tipos de Agentes Soportados Software agents (issuers, holders, verifiers, relying parties), governing bodies (authorities), and any party making programmatic trust decisions
Tipos de Billetera/Cliente Wallet integrations (verifiable credential wallets querying trust registries to validate issuers); ecosystem-specific clients; library generation via OpenAPI 3.0
Mecanismos de Recuperación Out of scope — recovery is a system-of-record concern at the underlying registry level
Cumplimiento / Regulaciones EU eIDAS 2.0 (digital wallet verifier authorization); cross-jurisdiction credential verification (mDL, health credentials)
Protocolos de Intercambio de Credenciales TRQP composes with credential exchange protocols rather than being one — verifiers query TRQP during issuance/verification flows running over DIDComm, OpenID4VC, etc.
Marco de Confianza Layer 1 of ToIP four-layer stack — supports any ecosystem governance framework above it; specifically motivated by EU eIDAS 2.0 "verifying the verifier" requirements
Modelo de Costos Free — open standard, royalty-free implementation under ToIP/LF Decentralized Trust IPR
Resistencia a la Censura Depends on backing trust registry deployment; protocol itself is read-only and does not prescribe registry resilience

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Administrado por
  • Trust Over IP Foundation
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