{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:Z2FWO2A6S5BC7GCUCOSJKUXZ3L","short_pith_number":"pith:Z2FWO2A6","canonical_record":{"source":{"id":"1410.5260","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2014-10-20T13:10:47Z","cross_cats_sorted":[],"title_canon_sha256":"8d26dbab89cff211aabe7d2ae03dc43ccf6c3c493c9d5f8c8e1d6fe78389d36b","abstract_canon_sha256":"3a1ff3a586536cb2a419ac91e7ef3c0d5881d18625a71241e18dc26874b8af31"},"schema_version":"1.0"},"canonical_sha256":"ce8b67681e97422f985413a49552f9daede75f153bef1b0be6a543a73ae69976","source":{"kind":"arxiv","id":"1410.5260","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1410.5260","created_at":"2026-05-18T02:39:46Z"},{"alias_kind":"arxiv_version","alias_value":"1410.5260v1","created_at":"2026-05-18T02:39:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1410.5260","created_at":"2026-05-18T02:39:46Z"},{"alias_kind":"pith_short_12","alias_value":"Z2FWO2A6S5BC","created_at":"2026-05-18T12:28:59Z"},{"alias_kind":"pith_short_16","alias_value":"Z2FWO2A6S5BC7GCU","created_at":"2026-05-18T12:28:59Z"},{"alias_kind":"pith_short_8","alias_value":"Z2FWO2A6","created_at":"2026-05-18T12:28:59Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:Z2FWO2A6S5BC7GCUCOSJKUXZ3L","target":"record","payload":{"canonical_record":{"source":{"id":"1410.5260","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2014-10-20T13:10:47Z","cross_cats_sorted":[],"title_canon_sha256":"8d26dbab89cff211aabe7d2ae03dc43ccf6c3c493c9d5f8c8e1d6fe78389d36b","abstract_canon_sha256":"3a1ff3a586536cb2a419ac91e7ef3c0d5881d18625a71241e18dc26874b8af31"},"schema_version":"1.0"},"canonical_sha256":"ce8b67681e97422f985413a49552f9daede75f153bef1b0be6a543a73ae69976","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:39:46.456830Z","signature_b64":"nRSXmAiHrDzXA/4/hx+AnF+ZxwIa5H3lVJnpim/7K903eV8GglmxDIdXZcLHFTpQAncmRSxyDiimM5VMAZvUDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ce8b67681e97422f985413a49552f9daede75f153bef1b0be6a543a73ae69976","last_reissued_at":"2026-05-18T02:39:46.456387Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:39:46.456387Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1410.5260","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":"2026-05-18T02:39:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CxEuqfP3d0+10ucMkHngAXeU/nSR8EthyXWM7jweLK6ZxMpDr5TZUdq10TIDidSMN67l7WpgD0F6usZfWOHODA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T06:21:51.179212Z"},"content_sha256":"5e50b65dd1ae01b2520c0fac0fa2f904777db6ba9f6ea9ae430fc9006163699a","schema_version":"1.0","event_id":"sha256:5e50b65dd1ae01b2520c0fac0fa2f904777db6ba9f6ea9ae430fc9006163699a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:Z2FWO2A6S5BC7GCUCOSJKUXZ3L","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Quantum key distribution with key extracted from basis information","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Xiongfeng Ma","submitted_at":"2014-10-20T13:10:47Z","abstract_excerpt":"In conventional quantum key distribution protocols, the secure key is normally extracted from the measurement outcomes of the system. Here, a different approach is proposed, where the secure key is extracted from the measurement bases, rather than outcomes. Compared to the original Bennett-Brassard-1984 protocol, the proposed protocol involves no hardware change but modifications in data postprocessing. We show that this protocol is more robust against detector efficiency attacks and photon-number-splitting attacks when practical detectors and photon sources are used."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1410.5260","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":"2026-05-18T02:39:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7b1jNPRkP9/pQBZW/ljFv08N+kPa0rOVW2Jm832LV3uOSHwy0fmUQstiu8Gl+IhEmw358mW+WJEOLGQutebwAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T06:21:51.179917Z"},"content_sha256":"176d3da956711d07a4fdc6f67722f16cdad3a0a00cd5a439b8efa6fe0f1c3137","schema_version":"1.0","event_id":"sha256:176d3da956711d07a4fdc6f67722f16cdad3a0a00cd5a439b8efa6fe0f1c3137"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/Z2FWO2A6S5BC7GCUCOSJKUXZ3L/bundle.json","state_url":"https://pith.science/pith/Z2FWO2A6S5BC7GCUCOSJKUXZ3L/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/Z2FWO2A6S5BC7GCUCOSJKUXZ3L/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":"2026-05-30T06:21:51Z","links":{"resolver":"https://pith.science/pith/Z2FWO2A6S5BC7GCUCOSJKUXZ3L","bundle":"https://pith.science/pith/Z2FWO2A6S5BC7GCUCOSJKUXZ3L/bundle.json","state":"https://pith.science/pith/Z2FWO2A6S5BC7GCUCOSJKUXZ3L/state.json","well_known_bundle":"https://pith.science/.well-known/pith/Z2FWO2A6S5BC7GCUCOSJKUXZ3L/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:Z2FWO2A6S5BC7GCUCOSJKUXZ3L","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":"3a1ff3a586536cb2a419ac91e7ef3c0d5881d18625a71241e18dc26874b8af31","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2014-10-20T13:10:47Z","title_canon_sha256":"8d26dbab89cff211aabe7d2ae03dc43ccf6c3c493c9d5f8c8e1d6fe78389d36b"},"schema_version":"1.0","source":{"id":"1410.5260","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1410.5260","created_at":"2026-05-18T02:39:46Z"},{"alias_kind":"arxiv_version","alias_value":"1410.5260v1","created_at":"2026-05-18T02:39:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1410.5260","created_at":"2026-05-18T02:39:46Z"},{"alias_kind":"pith_short_12","alias_value":"Z2FWO2A6S5BC","created_at":"2026-05-18T12:28:59Z"},{"alias_kind":"pith_short_16","alias_value":"Z2FWO2A6S5BC7GCU","created_at":"2026-05-18T12:28:59Z"},{"alias_kind":"pith_short_8","alias_value":"Z2FWO2A6","created_at":"2026-05-18T12:28:59Z"}],"graph_snapshots":[{"event_id":"sha256:176d3da956711d07a4fdc6f67722f16cdad3a0a00cd5a439b8efa6fe0f1c3137","target":"graph","created_at":"2026-05-18T02:39:46Z","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":"In conventional quantum key distribution protocols, the secure key is normally extracted from the measurement outcomes of the system. Here, a different approach is proposed, where the secure key is extracted from the measurement bases, rather than outcomes. Compared to the original Bennett-Brassard-1984 protocol, the proposed protocol involves no hardware change but modifications in data postprocessing. We show that this protocol is more robust against detector efficiency attacks and photon-number-splitting attacks when practical detectors and photon sources are used.","authors_text":"Xiongfeng Ma","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2014-10-20T13:10:47Z","title":"Quantum key distribution with key extracted from basis information"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1410.5260","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":"sha256:5e50b65dd1ae01b2520c0fac0fa2f904777db6ba9f6ea9ae430fc9006163699a","target":"record","created_at":"2026-05-18T02:39:46Z","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":"3a1ff3a586536cb2a419ac91e7ef3c0d5881d18625a71241e18dc26874b8af31","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2014-10-20T13:10:47Z","title_canon_sha256":"8d26dbab89cff211aabe7d2ae03dc43ccf6c3c493c9d5f8c8e1d6fe78389d36b"},"schema_version":"1.0","source":{"id":"1410.5260","kind":"arxiv","version":1}},"canonical_sha256":"ce8b67681e97422f985413a49552f9daede75f153bef1b0be6a543a73ae69976","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ce8b67681e97422f985413a49552f9daede75f153bef1b0be6a543a73ae69976","first_computed_at":"2026-05-18T02:39:46.456387Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:39:46.456387Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"nRSXmAiHrDzXA/4/hx+AnF+ZxwIa5H3lVJnpim/7K903eV8GglmxDIdXZcLHFTpQAncmRSxyDiimM5VMAZvUDw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:39:46.456830Z","signed_message":"canonical_sha256_bytes"},"source_id":"1410.5260","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5e50b65dd1ae01b2520c0fac0fa2f904777db6ba9f6ea9ae430fc9006163699a","sha256:176d3da956711d07a4fdc6f67722f16cdad3a0a00cd5a439b8efa6fe0f1c3137"],"state_sha256":"09f0b2b1a192586203e68463625c8e0cc08288682efa1754c77ed731e8da8f3d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gpKSHDVEZ6R3ZH9Zq8D418ML9kh2wCmV5haAfmOUGK0pcuEdPBsA97lrAtb6j6MMqYlH5B1T+MitLdtjH3WuAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T06:21:51.184235Z","bundle_sha256":"261f1d56f7cb8b421a4211b67528b6e4e91e1fa912d450fb00847e51735817a3"}}