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Original file line number Diff line number Diff line change
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{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"title": "W3C Verifiable Attestation v1.1",
"description": "The schema defines a generic structure for any Verifiable Credentials according to the VCDM v1.1",
"type": "object",
"properties": {
"@context": {
"description": "Semantic context for the issued credential. First element MUST be https://www.w3.org/2018/credentials/v1",
"type": "array",
"items": {
"type": "string",
"format": "uri"
},
"contains": {
"const": "https://www.w3.org/2018/credentials/v1"
},
"minItems": 1,
"uniqueItems": true
},
"id": {
"description": "Globally unique identifier for the issued credential",
"type": "string",
"format": "uri"
},
"type": {
"description": "Full type chain, used to identify the credential base types",
"type": "array",
"items": {
"type": "string"
},
"contains": {
"type": "string",
"const": "VerifiableCredential"
},
"uniqueItems": true
},
"issuer": {
"description": "Defines a property for expressing the issuer of a Verifiable Credential",
"oneOf": [
{
"description": "DID of the credential issuer",
"type": "string",
"format": "uri"
},
{
"type": "object",
"required": ["id"],
"properties": {
"id": {
"description": "DID of the credential issuer",
"type": "string",
"format": "uri"
}
}
}
]
},
"issuanceDate": {
"description": "Defines the date and time, when the issued credential becomes valid",
"type": "string",
"format": "date-time"
},
"issued": {
"description": "Defines when the issued credential was issued",
"type": "string",
"format": "date-time"
},
"validFrom": {
"description": "Defines the date and time, when the issued credential becomes valid",
"type": "string",
"format": "date-time"
},
"validUntil": {
"description": "Defines the date and time, when the issued credential expires",
"type": "string",
"format": "date-time"
},
"expirationDate": {
"description": "Defines the date and time, when the issued credential expires",
"type": "string",
"format": "date-time"
},
"credentialSubject": {
"description": "Defines information about the subject that is defined by the type chain",
"anyOf": [
{
"$ref": "#/$defs/credentialSubject"
},
{
"type": "array",
"items": {
"$ref": "#/$defs/credentialSubject"
}
}
]
},
"credentialStatus": {
"description": "Defines suspension and/or revocation details for the issued credential. Further redefined by the type extension",
"type": "object",
"properties": {
"id": {
"description": "Exact identity for the credential status",
"type": "string",
"format": "uri"
},
"type": {
"description": "Defines the revocation type extension",
"type": "string"
}
},
"required": ["id", "type"]
},
"credentialSchema": {
"description": "One or more schemas that validate the Verifiable Credential.",
"anyOf": [
{
"$ref": "#/$defs/credentialSchema"
},
{
"type": "array",
"items": {
"$ref": "#/$defs/credentialSchema"
}
}
]
},
"termsOfUse": {
"description": "Contains the terms under which the issued credential was issued",
"anyOf": [
{
"$ref": "#/$defs/termsOfUse"
},
{
"type": "array",
"items": {
"$ref": "#/$defs/termsOfUse"
}
}
]
},
"evidence": {
"description": "Contains the optional evidence used to issue this credential",
"anyOf": [
{
"$ref": "#/$defs/evidence"
},
{
"type": "array",
"items": {
"$ref": "#/$defs/evidence"
}
}
]
}
},
"required": [
"@context",
"id",
"type",
"issuer",
"issuanceDate",
"issued",
"validFrom",
"credentialSubject",
"credentialSchema"
],
"$defs": {
"credentialSubject": {
"description": "Defines information about the subject that is defined by the type chain",
"type": "object",
"properties": {
"id": {
"description": "Defines the DID of the subject that is described by the issued credential",
"type": "string",
"format": "uri"
}
}
},
"credentialSchema": {
"description": "Contains information about the credential schema on which the issued credential is based",
"type": "object",
"properties": {
"id": {
"description": "References the credential schema stored on the Trusted Schemas Registry (TSR) on which the Verifiable Authorisation is based on",
"type": "string",
"format": "uri"
},
"type": {
"description": "Defines credential schema type",
"type": "string"
}
},
"required": ["id", "type"]
},
"termsOfUse": {
"description": "Contains the terms under which the issued credential was issued",
"type": "object",
"properties": {
"id": {
"description": "Contains a URL that points to where more information about this instance of terms of use can be found.",
"type": "string"
},
"type": {
"description": "Defines the type extension",
"type": "string"
}
},
"required": ["type"]
},
"evidence": {
"type": "object",
"properties": {
"id": {
"description": "If present, it SHOULD contain a URL that points to where more information about this instance of evidence can be found.",
"type": "string"
},
"type": {
"anyOf": [
{
"description": "Defines the evidence type extension",
"type": "string"
},
{
"description": "Defines the evidence type extension",
"type": "array",
"items": {
"type": "string"
}
}
]
}
},
"required": ["type"]
}
}
}
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