token-standards/mls03/credential.json at main · mintlayer/token-standards · GitHub

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{
  "schema_version": "1.0",
  "token_type": "credential",
  "name": "Master of Science in Computer Science — Politecnico di Milano",
  "description": "On-chain academic credential issued by Politecnico di Milano. This soulbound token serves as a tamper-proof digital diploma, verifiable by any third party without contacting the issuing institution.",
  "image": "ipfs://QmCred.../polimi-degree-2025.png",
  "image_mime_type": "image/png",
  "animation_url": null,
  "animation_mime_type": null,
  "external_url": "https://credentials.polimi.example.it/verify/MSC-CS-2025-04821",
  "attributes": [
    { "trait_type": "Credential Type", "value": "Academic Degree" },
    { "trait_type": "Degree", "value": "Master of Science" },
    { "trait_type": "Field", "value": "Computer Science" },
    { "trait_type": "Institution", "value": "Politecnico di Milano" },
    { "trait_type": "Issued Date", "value": "2025-07-15", "display_type": "date" },
    { "trait_type": "Grade", "value": "110/110 cum laude" },
    { "trait_type": "Thesis", "value": "Federated Learning on Blockchain Networks" }
  ],
  "collection": {
    "name": "Politecnico di Milano — Digital Credentials",
    "description": "Official on-chain academic credentials issued by Politecnico di Milano.",
    "symbol": "POLIMI",
    "image": "ipfs://QmCred.../polimi-seal.png",
    "total_supply": null
  },
  "creator": {
    "address": "ML1polimi...",
    "name": "Politecnico di Milano",
    "royalty_percentage": 0.0,
    "royalty_address": null
  },
  "social": {
    "twitter": "https://twitter.com/polimi",
    "discord": null,
    "github": null,
    "website": "https://polimi.example.it"
  },
  "type_metadata": {
    "credential_type": "academic_degree",
    "issuer": {
      "name": "Politecnico di Milano",
      "type": "university",
      "country": "IT",
      "accreditation_body": "MIUR",
      "accreditation_reference": "MIUR-POLIMI-2025",
      "signing_address": "ML1polimi..."
    },
    "holder": {
      "address": "ML1graduate...",
      "legal_name": "Marco Ferretti",
      "date_of_birth": null
    },
    "degree": {
      "title": "Master of Science",
      "field": "Computer Science",
      "specialization": "Artificial Intelligence and Machine Learning",
      "ects_credits": 120,
      "duration_years": 2,
      "language_of_instruction": "EN",
      "grade": "110/110 cum laude",
      "thesis_title": "Federated Learning on Blockchain Networks",
      "thesis_supervisor": "Prof. Giuseppe Conti"
    },
    "dates": {
      "enrolled": "2023-09-01",
      "graduated": "2025-07-15",
      "issued": "2025-07-15",
      "expires": null
    },
    "verification": {
      "standard": "W3C Verifiable Credentials 1.1",
      "verification_url": "https://credentials.polimi.example.it/verify/MSC-CS-2025-04821",
      "revocation_registry": "ML1revokeregistry...",
      "revoked": false
    },
    "documents": [
      {
        "type": "diploma",
        "label": "Official Diploma PDF",
        "url": "ipfs://QmCred.../MSC-CS-2025-04821-diploma.pdf",
        "hash": "sha256:d4e5f6a7b8c9d0e1f2a3b4c5d6e7f8a9b0c1d2e3f4a5b6c7d8e9f0a1b2c3d4e5",
        "date": "2025-07-15"
      },
      {
        "type": "transcript",
        "label": "Academic Transcript",
        "url": "ipfs://QmCred.../MSC-CS-2025-04821-transcript.pdf",
        "hash": "sha256:e5f6a7b8c9d0e1f2a3b4c5d6e7f8a9b0c1d2e3f4a5b6c7d8e9f0a1b2c3d4e5f6",
        "date": "2025-07-15"
      }
    ],
    "soulbound": true,
    "transfer_policy": "non_transferable"
  }
}