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Local Government Certification PA

Terminology​

For terms not explained in this document, please see Terminology.

  • Profile Annotation (PA)
  • Local Government Certification PA: A Profile Annotation that guarantees certification by the local government of the OP-holding organization.

Local Government Certification PA Properties​

It MUST comply with Profile Annotation .

Property​

@context​

REQUIRED. It MUST comply with OP VC Data Model . In addition, the third value MUST be "https://originator-profile.org/ns/cip/v1".

credentialSubject​

REQUIRED. It is a JSON-LD Node Object representing a Local Government Certification PA.

  • id: REQUIRED. The OP ID of an organization holding the PA.
  • type: REQUIRED. Set it to JP-LocalGovernmentCertificate
  • name: OPTIONAL. The name of this PA (string).
  • description: OPTIONAL. It is a description of this PA (string).
  • image: OPTIONAL. MUST be a JSON-LD Node Object of type image datatype. This property allows you to verify that the PA image has not been tampered with.
  • annotation: REQUIRED. It MUST be a Profile Annotation Policy.
note

Properties for local government certification PA outside of Japan are under consideration.

Appendix​

Example​

This section is non-normative.

Below is a concrete example of a local government certification PA.

{
  "@context": [
    "https://www.w3.org/ns/credentials/v2",
    "https://originator-profile.org/ns/credentials/v1",
    "https://originator-profile.org/ns/cip/v1",
    {
      "@language": "en"
    }
  ],
  "type": ["VerifiableCredential", "ProfileAnnotation"],
  "issuer": "dns:lgac.exp.originator-profile.org",
  "credentialSubject": {
    "id": "dns:pa-holder.example.jp",
    "type": "JP-LocalGovernmentCertificate",
    "image": {
      "id": "https://lgac.exp.originator-profile.org/image.png"
    },
    "annotation": {
      "id": "urn:uuid:203a2553-f1a8-40ba-9df0-4e508aa8511d",
      "type": "ProfileAnnotationPolicy",
      "name": "Fictitious Local Government Authentication Center Local Government Certification",
      "description": "This organization is a local public entity organized and operated in accordance with the Local Autonomy Law.",
      "ref": "https://lgac.exp.originator-profile.org/"
    }
  }
}
Migration Required

If you are using a previous format that extends Certificate, such as the one below, it will become unverifiable after 2027-01-01. The issuer MUST migrate to the format defined in this document by then.

Municipality Certification Certificate Properties​

It MUST comply with Certificate .

Property​

@context​

REQUIRED. It MUST comply with OP VC Data Model . In addition, the third value MUST be "https://originator-profile.org/ns/cip/v1".

credentialSubject​

REQUIRED. It is a JSON-LD Node Object representing a Municipality Certification Certificate.

  • id: REQUIRED. The OP ID of an organization holding the certificate.
  • type: REQUIRED. Set it to CertificateProperties
  • description: OPTIONAL. It is a description of this certificate (string).
  • image: OPTIONAL. MUST be a JSON-LD Node Object of type image. This property allows you to verify that the image in the Certificate has not been tampered with.
  • certifier: OPTIONAL. The name of the certification authority.
  • verifier: OPTIONAL. The name of the verifier.
  • certificationSystem.id: REQUIRED. Specify the ID of the certification system in URI format.
  • certificationSystem.type: REQUIRED. MUST be a CertificationSystem.
  • certificationSystem.name: REQUIRED. The name of the certification system.
  • certificationSystem.description: OPTIONAL. A description of the certification system (string).
  • certificationSystem.ref: RECOMMENDED. The URL of a page people can read to learn more about the certification system.
note

Properties for municipality certification certificates outside of Japan are under consideration.

Appendix​

Example​

This section is non-normative.

Below is a concrete example of a municipality certification certificate.

{
  "@context": [
    "https://www.w3.org/ns/credentials/v2",
    "https://originator-profile.org/ns/credentials/v1",
    "https://originator-profile.org/ns/cip/v1",
    {
      "@language": "en"
    }
  ],
  "type": ["VerifiableCredential", "Certificate"],
  "issuer": "dns:lgac.exp.originator-profile.org",
  "credentialSubject": {
    "id": "dns:pa-holder.example.jp",
    "type": "CertificateProperties",
    "certificationSystem": {
      "id": "urn:uuid:203a2553-f1a8-40ba-9df0-4e508aa8511d",
      "type": "CertificationSystem",
      "name": "Fictitious Municipality Certification Center Municipal Certification",
      "description": "This organization is a local public entity organized and operated in accordance with the Local Autonomy Law.",
      "ref": "https://lgac.exp.originator-profile.org/"
    },
    "certifier": "Fictitious Organization Existence Verification Authority",
    "image": {
      "id": "https://lgac.exp.originator-profile.org/image.png"
    }
  }
}