{
  "annotation_id": "7d01ee77-1ceb-4608-9d00-b26a1365d84d",
  "date_created": "2026-03-02T18:02:10.003000Z",
  "date_modified": "2026-03-02T18:02:10.003000Z",
  "file_hash": "825f13ee9ec123a94bfbda30944b290b30f4eb70bd47c957dbe1c73c33185215",
  "private": false,
  "record": {
    "abstract": "We present protocols for multiparty data hiding of quantum information that\nimplement all possible threshold access structures. Closely related to secret\nsharing, data hiding has a more demanding security requirement: that the data\nremain secure against unrestricted LOCC attacks. In the limit of hiding a large\namount of data, our protocols achieve an asymptotic rate of one hidden qubit\nper local physical qubit. That is, each party holds a share that is the same\nsize as the hidden state to leading order, with accuracy and security\nparameters incurring an overhead that is asymptotically negligible. The data\nhiding states have very unusual entanglement properties, which we briefly\ndiscuss.",
    "arxiv_id": "quant-ph/0407152",
    "authors": [
      "Patrick Hayden",
      "Debbie Leung",
      "Graeme Smith"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.71.062339",
    "journal_ref": "Phys. Rev. A 71:062339 (2005).",
    "title": "Multiparty data hiding of quantum information",
    "url": "https://arxiv.org/abs/quant-ph/0407152"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "4defced5-5667-406d-8b92-18de3b195c85",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}