{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:PJ3MHMKQVOX7XRASA5MZN3PIAX","short_pith_number":"pith:PJ3MHMKQ","canonical_record":{"source":{"id":"1503.01498","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-03-04T23:22:21Z","cross_cats_sorted":[],"title_canon_sha256":"f814e9a1ae3a62d50c7cad4a36c24c4f5c7e1e520f2be485f2607c507471b5b8","abstract_canon_sha256":"c049113216d698f98f7e092ceebb46847f568e08a7ea445316e739f0f9d2e60a"},"schema_version":"1.0"},"canonical_sha256":"7a76c3b150abaffbc412075996ede805e9f6de57652e60f45e93469f88498d00","source":{"kind":"arxiv","id":"1503.01498","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1503.01498","created_at":"2026-05-18T02:17:23Z"},{"alias_kind":"arxiv_version","alias_value":"1503.01498v1","created_at":"2026-05-18T02:17:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1503.01498","created_at":"2026-05-18T02:17:23Z"},{"alias_kind":"pith_short_12","alias_value":"PJ3MHMKQVOX7","created_at":"2026-05-18T12:29:37Z"},{"alias_kind":"pith_short_16","alias_value":"PJ3MHMKQVOX7XRAS","created_at":"2026-05-18T12:29:37Z"},{"alias_kind":"pith_short_8","alias_value":"PJ3MHMKQ","created_at":"2026-05-18T12:29:37Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:PJ3MHMKQVOX7XRASA5MZN3PIAX","target":"record","payload":{"canonical_record":{"source":{"id":"1503.01498","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-03-04T23:22:21Z","cross_cats_sorted":[],"title_canon_sha256":"f814e9a1ae3a62d50c7cad4a36c24c4f5c7e1e520f2be485f2607c507471b5b8","abstract_canon_sha256":"c049113216d698f98f7e092ceebb46847f568e08a7ea445316e739f0f9d2e60a"},"schema_version":"1.0"},"canonical_sha256":"7a76c3b150abaffbc412075996ede805e9f6de57652e60f45e93469f88498d00","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:17:23.894232Z","signature_b64":"ZP0fCGHQeNQ80vrGiD6D1HQSz48YucQ3dgLPORaqBWW1xVHbWNfHMgsMEsIGE0u9ozHoXbMh2HFT3aYf4rE2BA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7a76c3b150abaffbc412075996ede805e9f6de57652e60f45e93469f88498d00","last_reissued_at":"2026-05-18T02:17:23.893510Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:17:23.893510Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1503.01498","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:17:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mfzaeIhTmcxJLLrOs+1AkQl75pOuShBIynaGgOx0AqWAJV5nlFmyfpkH4vmt1Na5u3Q1BgpLuaqIPZ7P7ASQBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T17:33:03.184721Z"},"content_sha256":"dc961c5d4f0119e04cc692106a98e1b1ed2f87c9360642a8e400a6863169f67d","schema_version":"1.0","event_id":"sha256:dc961c5d4f0119e04cc692106a98e1b1ed2f87c9360642a8e400a6863169f67d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:PJ3MHMKQVOX7XRASA5MZN3PIAX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Finite key size analysis of two-way quantum cryptography","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Jesni Shamsul Shaari, Stefano Mancini","submitted_at":"2015-03-04T23:22:21Z","abstract_excerpt":"Quantum cryptographic protocols solve the longstanding problem of distributing a shared secret string to two distant users by typically making use of one-way quantum channel. However, alternative protocols exploiting two-way quantum channel have been proposed for the same goal and with potential advantages. Here we overview a security proof for two-way quantum key distribution protocols, against the most general eavesdropping attack, that utilize an entropic uncertainty relation. Then, by resorting to the `smooth' version of involved entropies, we extend such a proof to the case of finite key "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1503.01498","kind":"arxiv","version":1},"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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:17:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ihiDLLxCDkTOwSSKus9aqeI4rD/tsZDuzZh71zurscWMiwjytsWRRBUqVYnxOmFEjdbwHpeY0WD1zMNTZf8aCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T17:33:03.185080Z"},"content_sha256":"1e4249203baff9866f0a8ce28b14c39e61d90deb5221e44f422855df18c85e58","schema_version":"1.0","event_id":"sha256:1e4249203baff9866f0a8ce28b14c39e61d90deb5221e44f422855df18c85e58"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/PJ3MHMKQVOX7XRASA5MZN3PIAX/bundle.json","state_url":"https://pith.science/pith/PJ3MHMKQVOX7XRASA5MZN3PIAX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/PJ3MHMKQVOX7XRASA5MZN3PIAX/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-06-01T17:33:03Z","links":{"resolver":"https://pith.science/pith/PJ3MHMKQVOX7XRASA5MZN3PIAX","bundle":"https://pith.science/pith/PJ3MHMKQVOX7XRASA5MZN3PIAX/bundle.json","state":"https://pith.science/pith/PJ3MHMKQVOX7XRASA5MZN3PIAX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/PJ3MHMKQVOX7XRASA5MZN3PIAX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:PJ3MHMKQVOX7XRASA5MZN3PIAX","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"c049113216d698f98f7e092ceebb46847f568e08a7ea445316e739f0f9d2e60a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-03-04T23:22:21Z","title_canon_sha256":"f814e9a1ae3a62d50c7cad4a36c24c4f5c7e1e520f2be485f2607c507471b5b8"},"schema_version":"1.0","source":{"id":"1503.01498","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1503.01498","created_at":"2026-05-18T02:17:23Z"},{"alias_kind":"arxiv_version","alias_value":"1503.01498v1","created_at":"2026-05-18T02:17:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1503.01498","created_at":"2026-05-18T02:17:23Z"},{"alias_kind":"pith_short_12","alias_value":"PJ3MHMKQVOX7","created_at":"2026-05-18T12:29:37Z"},{"alias_kind":"pith_short_16","alias_value":"PJ3MHMKQVOX7XRAS","created_at":"2026-05-18T12:29:37Z"},{"alias_kind":"pith_short_8","alias_value":"PJ3MHMKQ","created_at":"2026-05-18T12:29:37Z"}],"graph_snapshots":[{"event_id":"sha256:1e4249203baff9866f0a8ce28b14c39e61d90deb5221e44f422855df18c85e58","target":"graph","created_at":"2026-05-18T02:17:23Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"Quantum cryptographic protocols solve the longstanding problem of distributing a shared secret string to two distant users by typically making use of one-way quantum channel. However, alternative protocols exploiting two-way quantum channel have been proposed for the same goal and with potential advantages. Here we overview a security proof for two-way quantum key distribution protocols, against the most general eavesdropping attack, that utilize an entropic uncertainty relation. Then, by resorting to the `smooth' version of involved entropies, we extend such a proof to the case of finite key ","authors_text":"Jesni Shamsul Shaari, Stefano Mancini","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-03-04T23:22:21Z","title":"Finite key size analysis of two-way quantum cryptography"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1503.01498","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:dc961c5d4f0119e04cc692106a98e1b1ed2f87c9360642a8e400a6863169f67d","target":"record","created_at":"2026-05-18T02:17:23Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"c049113216d698f98f7e092ceebb46847f568e08a7ea445316e739f0f9d2e60a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-03-04T23:22:21Z","title_canon_sha256":"f814e9a1ae3a62d50c7cad4a36c24c4f5c7e1e520f2be485f2607c507471b5b8"},"schema_version":"1.0","source":{"id":"1503.01498","kind":"arxiv","version":1}},"canonical_sha256":"7a76c3b150abaffbc412075996ede805e9f6de57652e60f45e93469f88498d00","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7a76c3b150abaffbc412075996ede805e9f6de57652e60f45e93469f88498d00","first_computed_at":"2026-05-18T02:17:23.893510Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:17:23.893510Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ZP0fCGHQeNQ80vrGiD6D1HQSz48YucQ3dgLPORaqBWW1xVHbWNfHMgsMEsIGE0u9ozHoXbMh2HFT3aYf4rE2BA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:17:23.894232Z","signed_message":"canonical_sha256_bytes"},"source_id":"1503.01498","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:dc961c5d4f0119e04cc692106a98e1b1ed2f87c9360642a8e400a6863169f67d","sha256:1e4249203baff9866f0a8ce28b14c39e61d90deb5221e44f422855df18c85e58"],"state_sha256":"a05acd37a68f1e7e52794d2122d8bdd78e06d7f9869441f6316d17570487a070"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"H+pdr814pH4DNUgmcBG9LzhEqLPLabLcgupEgk5Hro2D1lNDP4wE78/Z5FkeoPjD4Fd9loJMTHo6uh5hvMKZCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T17:33:03.187092Z","bundle_sha256":"8323f76b499b8af9b4b0c4bc9fa52328731e6f37dab4037023ca7e32f0af3a89"}}