{
  "annotation_id": "e2046f6d-acd0-43f3-95bf-96d6f5c5c5a0",
  "date_created": "2026-03-02T18:01:53.173000Z",
  "date_modified": "2026-03-02T18:01:53.173000Z",
  "file_hash": "ef46d7ba43e437c17c2d0073101ebaf65aca52677459ce04b28fbc0f3a7fe931",
  "private": false,
  "record": {
    "abstract": "A method for solving the Byzantine agreement problem [M. Fitzi, N. Gisin, and\nU. Maurer, Phys. Rev. Lett. 87, 217901 (2001)] and the liar detection problem\n[A. Cabello, Phys. Rev. Lett. 89, 100402 (2002)] is introduced. The main\nadvantages of this protocol are that it is simpler and is based on a four-qubit\nsinglet state already prepared in the laboratory.",
    "arxiv_id": "quant-ph/0210079",
    "authors": [
      "Adan Cabello"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.68.012304",
    "journal_ref": "Phys. Rev. A 68 (2003) 012304",
    "title": "Solving the liar detection problem using the four-qubit singlet state",
    "url": "https://arxiv.org/abs/quant-ph/0210079"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "a5a8c4e7-f82e-496b-aa54-611375de5294",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}