Gitcoin Passport Stamp

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://raw.githubusercontent.com/api-evangelist/gitcoin/refs/heads/main/json-schema/passport-stamp.json",
  "title": "Gitcoin Passport Stamp",
  "description": "Schema for a Gitcoin Passport verifiable credential stamp used for identity verification and Sybil resistance",
  "type": "object",
  "properties": {
    "version": {
      "type": "string",
      "description": "Stamp schema version"
    },
    "credential": {
      "type": "object",
      "description": "The verifiable credential associated with the stamp",
      "properties": {
        "@context": {
          "type": "array",
          "items": {
            "type": "string",
            "format": "uri"
          },
          "description": "JSON-LD context array"
        },
        "type": {
          "type": "array",
          "items": {
            "type": "string"
          },
          "description": "Credential type array"
        },
        "issuer": {
          "type": "string",
          "description": "DID of the credential issuer"
        },
        "issuanceDate": {
          "type": "string",
          "format": "date-time",
          "description": "Date the credential was issued"
        },
        "expirationDate": {
          "type": "string",
          "format": "date-time",
          "description": "Date the credential expires"
        },
        "credentialSubject": {
          "type": "object",
          "description": "The subject of the verifiable credential",
          "properties": {
            "id": {
              "type": "string",
              "description": "DID of the credential subject"
            },
            "hash": {
              "type": "string",
              "description": "Hash of the credential for uniqueness verification"
            },
            "@context": {
              "type": "array",
              "items": {
                "type": "object"
              }
            },
            "provider": {
              "type": "string",
              "description": "The stamp provider name (e.g., Github, Discord, Twitter)"
            }
          }
        },
        "proof": {
          "type": "object",
          "description": "Cryptographic proof for the credential"
        }
      }
    },
    "metadata": {
      "type": "object",
      "description": "Metadata about the stamp",
      "properties": {
        "group": {
          "type": "string",
          "description": "Group/category of the stamp"
        },
        "platform": {
          "type": "object",
          "properties": {
            "id": {
              "type": "string",
              "description": "Platform identifier"
            },
            "icon": {
              "type": "string",
              "description": "Icon identifier for the platform"
            },
            "name": {
              "type": "string",
              "description": "Platform display name"
            },
            "description": {
              "type": "string",
              "description": "Platform description"
            },
            "connectMessage": {
              "type": "string",
              "description": "Message to display when connecting"
            }
          }
        },
        "name": {
          "type": "string",
          "description": "Stamp name"
        },
        "description": {
          "type": "string",
          "description": "Stamp description"
        },
        "hash": {
          "type": "string",
          "description": "Hash of the stamp"
        }
      }
    }
  },
  "required": ["version", "credential"]
}