{
  "$type": "com.atproto.lexicon.schema",
  "defs": {
    "main": {
      "description": "A completion attestation issued by a librarian",
      "key": "tid",
      "record": {
        "properties": {
          "book": {
            "description": "AT-URI of the reader's book record. Lexicon-agnostic: works with bond.biblio.book, buzz.bookhive.book, or any future book lexicon.",
            "format": "at-uri",
            "type": "string"
          },
          "createdAt": {
            "description": "When this stamp was issued",
            "format": "datetime",
            "type": "string"
          },
          "list": {
            "description": "AT-URI of the reading list this stamp is for",
            "format": "at-uri",
            "type": "string"
          }
        },
        "required": [
          "list",
          "book",
          "createdAt"
        ],
        "type": "object"
      },
      "type": "record"
    }
  },
  "description": "A librarian's cryptographic attestation that a reader completed a book for a reading list. The stamp lives in the librarian's repository, proving authority.",
  "id": "bond.biblio.stamp",
  "lexicon": 1
}