{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2003:TVDAQFGATR3U27ZTPOLRRQMJON","short_pith_number":"pith:TVDAQFGA","schema_version":"1.0","canonical_sha256":"9d460814c09c774d7f337b9718c1897379cd13db57b633b6ad278fb82e77a875","source":{"kind":"arxiv","id":"quant-ph/0306155","version":4},"attestation_state":"computed","paper":{"title":"Quantum Bit Commitment with a Composite Evidence","license":"","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"R. Srikanth","submitted_at":"2003-06-23T18:31:04Z","abstract_excerpt":"Entanglement-based attacks, which are subtle and powerful, are usually believed to render quantum bit commitment insecure. We point out that the no-go argument leading to this view implicitly assumes the evidence-of-commitment to be a monolithic quantum system. We argue that more general evidence structures, allowing for a composite, hybrid (classical-quantum) evidence, conduce to improved security. In particular, we present and prove the security of the following protocol: Bob sends Alice an anonymous state. She inscribes her commitment $b$ by measuring part of it in the + (for $b = 0$) or $\\"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"quant-ph/0306155","kind":"arxiv","version":4},"metadata":{"license":"","primary_cat":"quant-ph","submitted_at":"2003-06-23T18:31:04Z","cross_cats_sorted":[],"title_canon_sha256":"9d57e86b0f0250d7909e0c89efe4f987f4813ec99786a90826559b1a6e6a17b8","abstract_canon_sha256":"20fb1ff94fdc94b059643450f5e8077435fe1d9d54731bb10f487e67b1444b95"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:37:59.284158Z","signature_b64":"dXPWe4GcQhQL6BsH4vZrEV78NBX8gfbNLb9xaCE2N1m7vT/aPhP3JSTihY3yW2icwV2J7VB7J9nLuWdNHqu4Cg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9d460814c09c774d7f337b9718c1897379cd13db57b633b6ad278fb82e77a875","last_reissued_at":"2026-05-18T01:37:59.283639Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:37:59.283639Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Quantum Bit Commitment with a Composite Evidence","license":"","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"R. Srikanth","submitted_at":"2003-06-23T18:31:04Z","abstract_excerpt":"Entanglement-based attacks, which are subtle and powerful, are usually believed to render quantum bit commitment insecure. We point out that the no-go argument leading to this view implicitly assumes the evidence-of-commitment to be a monolithic quantum system. We argue that more general evidence structures, allowing for a composite, hybrid (classical-quantum) evidence, conduce to improved security. In particular, we present and prove the security of the following protocol: Bob sends Alice an anonymous state. She inscribes her commitment $b$ by measuring part of it in the + (for $b = 0$) or $\\"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"quant-ph/0306155","kind":"arxiv","version":4},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"aliases":[{"alias_kind":"arxiv","alias_value":"quant-ph/0306155","created_at":"2026-05-18T01:37:59.283731+00:00"},{"alias_kind":"arxiv_version","alias_value":"quant-ph/0306155v4","created_at":"2026-05-18T01:37:59.283731+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.quant-ph/0306155","created_at":"2026-05-18T01:37:59.283731+00:00"},{"alias_kind":"pith_short_12","alias_value":"TVDAQFGATR3U","created_at":"2026-05-18T12:25:52.051335+00:00"},{"alias_kind":"pith_short_16","alias_value":"TVDAQFGATR3U27ZT","created_at":"2026-05-18T12:25:52.051335+00:00"},{"alias_kind":"pith_short_8","alias_value":"TVDAQFGA","created_at":"2026-05-18T12:25:52.051335+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/TVDAQFGATR3U27ZTPOLRRQMJON","json":"https://pith.science/pith/TVDAQFGATR3U27ZTPOLRRQMJON.json","graph_json":"https://pith.science/api/pith-number/TVDAQFGATR3U27ZTPOLRRQMJON/graph.json","events_json":"https://pith.science/api/pith-number/TVDAQFGATR3U27ZTPOLRRQMJON/events.json","paper":"https://pith.science/paper/TVDAQFGA"},"agent_actions":{"view_html":"https://pith.science/pith/TVDAQFGATR3U27ZTPOLRRQMJON","download_json":"https://pith.science/pith/TVDAQFGATR3U27ZTPOLRRQMJON.json","view_paper":"https://pith.science/paper/TVDAQFGA","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=quant-ph/0306155&json=true","fetch_graph":"https://pith.science/api/pith-number/TVDAQFGATR3U27ZTPOLRRQMJON/graph.json","fetch_events":"https://pith.science/api/pith-number/TVDAQFGATR3U27ZTPOLRRQMJON/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/TVDAQFGATR3U27ZTPOLRRQMJON/action/timestamp_anchor","attest_storage":"https://pith.science/pith/TVDAQFGATR3U27ZTPOLRRQMJON/action/storage_attestation","attest_author":"https://pith.science/pith/TVDAQFGATR3U27ZTPOLRRQMJON/action/author_attestation","sign_citation":"https://pith.science/pith/TVDAQFGATR3U27ZTPOLRRQMJON/action/citation_signature","submit_replication":"https://pith.science/pith/TVDAQFGATR3U27ZTPOLRRQMJON/action/replication_record"}},"created_at":"2026-05-18T01:37:59.283731+00:00","updated_at":"2026-05-18T01:37:59.283731+00:00"}