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