Schemas

Base64-encoded TimeStampResponse (TSR) from the TSA

Base64-encoded TimeStampQuery (TSQ) sent to the TSA

Unique identifier for the credential

Credential types indicating its structure and semantics

JSON-LD context for the credential

Identifier of the credential issuer, typically a DID

Start time when the credential becomes valid

Expiration time of the credential

Subject of the credential and its properties

External schema(s) defining the structure of the credential

Cryptographic proof of the credential

JWT signature of declaration metadata

Timestamp Authority signature containing timestamp request and response payloads

ES256 JWT with the declarer's public JWK embedded in its header, whose payload is {"tdmaiRegistry": }. Required when declarationMetadata.tdmaiRegistry is provided.

RFC 3161 timestamp (tsq/tsr, base64) over the tdmaiRegistrySignature JWT (SHA-256 message imprint). Required when declarationMetadata.tdmaiRegistry is provided.

Unique identifier for the request

Status message of the ingestion

Environment where the declaration was ingested

ISCC code of the ingested declaration

Content Identifier Version 1 of the ingested declaration

API version

Error type or title

Detailed error message

ISCC code if available

FAIA category flag classifying the role of AI in the published content

FAIA activity code describing the specific type of AI involvement. Not applicable to hcc declarations. aac: coCreation, contribution, enhancement, refinement. aig: transformation, analysis.

Name or identifier of the AI system used (e.g. ChatGPT, Google Gemini, Stable Diffusion 3)

Version of the AI system used (e.g. GPT-4o, v1.3.2). Requires systemAttribution to also be present.

Error type

Summary of the validation failure

List of specific validation errors

The declaration's full composite ISCC code.

did:key of the declarer.

Unix timestamp in milliseconds; must be within 60 seconds of server time at declaration.

TDMRep plugin block.

FAIA plugin block.