{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2025:ETPNHHEAFUP66OXBXMCRUBKLBU","short_pith_number":"pith:ETPNHHEA","schema_version":"1.0","canonical_sha256":"24ded39c802d1fef3ae1bb051a054b0d22def8fdc5b18cc619ba48aca91e1af5","source":{"kind":"arxiv","id":"2504.20417","version":3},"attestation_state":"computed","paper":{"title":"Protocol-level description and self-contained security proof of decoy-state BB84 QKD protocol","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Akihiro Mizutani, Go Kato, Toshihiko Sasaki","submitted_at":"2025-04-29T04:28:15Z","abstract_excerpt":"In this paper, we present a flowchart-based description of the decoy-state BB84 quantum key distribution (QKD) protocol and provide a step-by-step, self-contained information-theoretic security proof for this protocol within the universal composable security framework. As a result, our proof yields a key rate consistent with previous findings. Importantly, unlike all the prior security proofs, our approach offers a fully rigorous and mathematical justification for achieving the key rate with the claimed correctness and secrecy parameters, thereby representing a significant step toward the form"},"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":"2504.20417","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2025-04-29T04:28:15Z","cross_cats_sorted":[],"title_canon_sha256":"5f7ab5b0314923a3f083a238d79ad47f226a9f96af8d3f2da588d9acd52661fd","abstract_canon_sha256":"7f51a091494367ac647900164e770abd1a263df446abe4b7646a4c33398d5764"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:09:46.788378Z","signature_b64":"YRG8w0GVp3FjVTv0hHNhC+GA1jPFWgxmVuh/5wtw46OUB8FCaVZ9Ja7Frgz0VlZN3jZv79m385vT2aS+8JYHCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"24ded39c802d1fef3ae1bb051a054b0d22def8fdc5b18cc619ba48aca91e1af5","last_reissued_at":"2026-07-05T11:09:46.787684Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:09:46.787684Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Protocol-level description and self-contained security proof of decoy-state BB84 QKD protocol","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Akihiro Mizutani, Go Kato, Toshihiko Sasaki","submitted_at":"2025-04-29T04:28:15Z","abstract_excerpt":"In this paper, we present a flowchart-based description of the decoy-state BB84 quantum key distribution (QKD) protocol and provide a step-by-step, self-contained information-theoretic security proof for this protocol within the universal composable security framework. As a result, our proof yields a key rate consistent with previous findings. Importantly, unlike all the prior security proofs, our approach offers a fully rigorous and mathematical justification for achieving the key rate with the claimed correctness and secrecy parameters, thereby representing a significant step toward the form"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2504.20417","kind":"arxiv","version":3},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2504.20417/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2504.20417","created_at":"2026-07-05T11:09:46.787786+00:00"},{"alias_kind":"arxiv_version","alias_value":"2504.20417v3","created_at":"2026-07-05T11:09:46.787786+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2504.20417","created_at":"2026-07-05T11:09:46.787786+00:00"},{"alias_kind":"pith_short_12","alias_value":"ETPNHHEAFUP6","created_at":"2026-07-05T11:09:46.787786+00:00"},{"alias_kind":"pith_short_16","alias_value":"ETPNHHEAFUP66OXB","created_at":"2026-07-05T11:09:46.787786+00:00"},{"alias_kind":"pith_short_8","alias_value":"ETPNHHEA","created_at":"2026-07-05T11:09:46.787786+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":4,"internal_anchor_count":0,"sample":[{"citing_arxiv_id":"2606.20346","citing_title":"Effective discrete-modulated continuous variable QKD under general attacks","ref_index":50,"is_internal_anchor":false},{"citing_arxiv_id":"2602.05057","citing_title":"Quantum Key Distribution with Imperfections: Recent Advances in Security Proofs","ref_index":32,"is_internal_anchor":false},{"citing_arxiv_id":"2602.05057","citing_title":"Quantum Key Distribution with Imperfections: Recent Advances in Security Proofs","ref_index":32,"is_internal_anchor":false},{"citing_arxiv_id":"2604.21791","citing_title":"Rigorous Security Proofs for Practical Quantum Key Distribution","ref_index":30,"is_internal_anchor":false}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/ETPNHHEAFUP66OXBXMCRUBKLBU","json":"https://pith.science/pith/ETPNHHEAFUP66OXBXMCRUBKLBU.json","graph_json":"https://pith.science/api/pith-number/ETPNHHEAFUP66OXBXMCRUBKLBU/graph.json","events_json":"https://pith.science/api/pith-number/ETPNHHEAFUP66OXBXMCRUBKLBU/events.json","paper":"https://pith.science/paper/ETPNHHEA"},"agent_actions":{"view_html":"https://pith.science/pith/ETPNHHEAFUP66OXBXMCRUBKLBU","download_json":"https://pith.science/pith/ETPNHHEAFUP66OXBXMCRUBKLBU.json","view_paper":"https://pith.science/paper/ETPNHHEA","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2504.20417&json=true","fetch_graph":"https://pith.science/api/pith-number/ETPNHHEAFUP66OXBXMCRUBKLBU/graph.json","fetch_events":"https://pith.science/api/pith-number/ETPNHHEAFUP66OXBXMCRUBKLBU/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/ETPNHHEAFUP66OXBXMCRUBKLBU/action/timestamp_anchor","attest_storage":"https://pith.science/pith/ETPNHHEAFUP66OXBXMCRUBKLBU/action/storage_attestation","attest_author":"https://pith.science/pith/ETPNHHEAFUP66OXBXMCRUBKLBU/action/author_attestation","sign_citation":"https://pith.science/pith/ETPNHHEAFUP66OXBXMCRUBKLBU/action/citation_signature","submit_replication":"https://pith.science/pith/ETPNHHEAFUP66OXBXMCRUBKLBU/action/replication_record"}},"created_at":"2026-07-05T11:09:46.787786+00:00","updated_at":"2026-07-05T11:09:46.787786+00:00"}