{
  "annotation_id": "eea57354-09f5-43bb-9e30-e606746ac87f",
  "date_created": "2026-03-02T18:01:48.337000Z",
  "date_modified": "2026-03-02T18:01:48.337000Z",
  "file_hash": "f69621d034f54c55f570c92dd75ba025ce91072bdf234ee455459ff47f3a2823",
  "private": false,
  "record": {
    "abstract": "It is generally believed that unconditionally secure quantum bit commitment\n(QBC) is proven impossible by a \"no-go theorem\". We point out that the theorem\nonly establishes the existence of a cheating unitary transformation in any QBC\nscheme secure against the receiver, but this fact alone is not sufficient to\nrule out unconditionally secure QBC as a matter of principle, because there\nexists no proof that the cheating unitary transformation must be known to the\ncheater in all possible cases. In this work, we show how to circumvent the\n\"no-go theorem\" and prove that unconditionally secure QBC is in fact possible.",
    "arxiv_id": "quant-ph/0112120",
    "authors": [
      "Chi-Yee Cheung"
    ],
    "categories": [
      "quant-ph"
    ],
    "title": "Quantum Bit Commitment can be Unconditionally Secure",
    "url": "https://arxiv.org/abs/quant-ph/0112120"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "3a1affa5-e1ef-4128-8905-8d6829b8cdbb",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}