{
  "annotation_id": "b70daf68-db7c-4444-8894-cdee53cc6b5c",
  "date_created": "2026-03-02T18:01:42.422000Z",
  "date_modified": "2026-03-02T18:01:42.422000Z",
  "file_hash": "2865cc7ccd048b40dec0111b835634dccb1324dcb424b80fca34ddc021f1994a",
  "private": false,
  "record": {
    "abstract": "We give a comprehensive and constructive proof of the no-go theorem of a bit\ncommitment given by Mayers, Lo, and Chau from the viewpoint of quantum\ninformation theory. It is shown that there is a trade-off relation between\ninformation acquired by Bob during the commitment phase and the ability to\nchange a commit bit by Alice during the opening phase. It is clarified that a\nprotocol that is unbiased to both Alice and Bob cannot be, at the same time,\nsecure against both parties. Fundamental physical constraints that govern this\nno-go theorem are also discussed.",
    "arxiv_id": "quant-ph/0011068",
    "authors": [
      "Yoshihiro Nambu",
      "Yoshie Chiba-Kohno"
    ],
    "categories": [
      "quant-ph"
    ],
    "title": "Information-Theoretic Description of No-go Theorem of a Bit Commitment",
    "url": "https://arxiv.org/abs/quant-ph/0011068"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "4dfc5689-6f4b-4938-a062-950a8aa83faa",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}