{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2015:NA3GTARRLNWRQVS2JM426YZ6IR","short_pith_number":"pith:NA3GTARR","schema_version":"1.0","canonical_sha256":"68366982315b6d18565a4b39af633e446dba7ca06b331de9de58319461281e55","source":{"kind":"arxiv","id":"1502.02249","version":2},"attestation_state":"computed","paper":{"title":"Universally-composable finite-key analysis for efficient four-intensity decoy-state quantum key distribution","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Bao Yan, Haodong Jiang, Ming Gao, Weilong Wang, Zhi Ma","submitted_at":"2015-02-08T13:43:38Z","abstract_excerpt":"We propose an efficient four-intensity decoy-state BB84 protocol and derive concise security bounds for this protocol with the universally composable finite-key analysis method. Comparing with the efficient three-intensity protocol, we find that our efficient four-intensity protocol can increase the secret key rate by at least $30\\%$. Particularly, this increasing rate of secret key rate will be raised as the transmission distance increases. At a large transmission distance, our efficient four-intensity protocol can improve the performance of quantum key distribution profoundly."},"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":"1502.02249","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-02-08T13:43:38Z","cross_cats_sorted":[],"title_canon_sha256":"ca703e9fed5dae9f20072bf578083e4a3c231fdae51512a3806043abdedceef2","abstract_canon_sha256":"bef907b1d241b9007220f2a1554183c4848919e2a1585c485792bbd362a12815"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:19:06.226750Z","signature_b64":"IujuKV8wza4vNpvRSXmVkFyPor3tI0cME4x2d5qdmDDc5EADQRUwNtpCbPlypUmYE77J3fQ2qopHdoRpHgxyCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"68366982315b6d18565a4b39af633e446dba7ca06b331de9de58319461281e55","last_reissued_at":"2026-05-18T01:19:06.225985Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:19:06.225985Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Universally-composable finite-key analysis for efficient four-intensity decoy-state quantum key distribution","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Bao Yan, Haodong Jiang, Ming Gao, Weilong Wang, Zhi Ma","submitted_at":"2015-02-08T13:43:38Z","abstract_excerpt":"We propose an efficient four-intensity decoy-state BB84 protocol and derive concise security bounds for this protocol with the universally composable finite-key analysis method. Comparing with the efficient three-intensity protocol, we find that our efficient four-intensity protocol can increase the secret key rate by at least $30\\%$. Particularly, this increasing rate of secret key rate will be raised as the transmission distance increases. At a large transmission distance, our efficient four-intensity protocol can improve the performance of quantum key distribution profoundly."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1502.02249","kind":"arxiv","version":2},"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":"1502.02249","created_at":"2026-05-18T01:19:06.226109+00:00"},{"alias_kind":"arxiv_version","alias_value":"1502.02249v2","created_at":"2026-05-18T01:19:06.226109+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1502.02249","created_at":"2026-05-18T01:19:06.226109+00:00"},{"alias_kind":"pith_short_12","alias_value":"NA3GTARRLNWR","created_at":"2026-05-18T12:29:32.376354+00:00"},{"alias_kind":"pith_short_16","alias_value":"NA3GTARRLNWRQVS2","created_at":"2026-05-18T12:29:32.376354+00:00"},{"alias_kind":"pith_short_8","alias_value":"NA3GTARR","created_at":"2026-05-18T12:29:32.376354+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/NA3GTARRLNWRQVS2JM426YZ6IR","json":"https://pith.science/pith/NA3GTARRLNWRQVS2JM426YZ6IR.json","graph_json":"https://pith.science/api/pith-number/NA3GTARRLNWRQVS2JM426YZ6IR/graph.json","events_json":"https://pith.science/api/pith-number/NA3GTARRLNWRQVS2JM426YZ6IR/events.json","paper":"https://pith.science/paper/NA3GTARR"},"agent_actions":{"view_html":"https://pith.science/pith/NA3GTARRLNWRQVS2JM426YZ6IR","download_json":"https://pith.science/pith/NA3GTARRLNWRQVS2JM426YZ6IR.json","view_paper":"https://pith.science/paper/NA3GTARR","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1502.02249&json=true","fetch_graph":"https://pith.science/api/pith-number/NA3GTARRLNWRQVS2JM426YZ6IR/graph.json","fetch_events":"https://pith.science/api/pith-number/NA3GTARRLNWRQVS2JM426YZ6IR/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/NA3GTARRLNWRQVS2JM426YZ6IR/action/timestamp_anchor","attest_storage":"https://pith.science/pith/NA3GTARRLNWRQVS2JM426YZ6IR/action/storage_attestation","attest_author":"https://pith.science/pith/NA3GTARRLNWRQVS2JM426YZ6IR/action/author_attestation","sign_citation":"https://pith.science/pith/NA3GTARRLNWRQVS2JM426YZ6IR/action/citation_signature","submit_replication":"https://pith.science/pith/NA3GTARRLNWRQVS2JM426YZ6IR/action/replication_record"}},"created_at":"2026-05-18T01:19:06.226109+00:00","updated_at":"2026-05-18T01:19:06.226109+00:00"}