{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2004:C5IEQIOB4MRNB2B2RXZN6PKSCQ","short_pith_number":"pith:C5IEQIOB","canonical_record":{"source":{"id":"quant-ph/0408031","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"quant-ph","submitted_at":"2004-08-05T00:22:44Z","cross_cats_sorted":[],"title_canon_sha256":"b9b4407ba505ae9e582d719d29a6752dd4aa3a58b112a5e77d656899bf988167","abstract_canon_sha256":"55fed49e25ad75e3d139cfa906c69c1df4b129d8f5c698f2fcf77aa07c94b248"},"schema_version":"1.0"},"canonical_sha256":"17504821c1e322d0e83a8df2df3d52140aa804512089cd6a220fc5eee8b123c8","source":{"kind":"arxiv","id":"quant-ph/0408031","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"quant-ph/0408031","created_at":"2026-07-04T16:50:22Z"},{"alias_kind":"arxiv_version","alias_value":"quant-ph/0408031v1","created_at":"2026-07-04T16:50:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.quant-ph/0408031","created_at":"2026-07-04T16:50:22Z"},{"alias_kind":"pith_short_12","alias_value":"C5IEQIOB4MRN","created_at":"2026-07-04T16:50:22Z"},{"alias_kind":"pith_short_16","alias_value":"C5IEQIOB4MRNB2B2","created_at":"2026-07-04T16:50:22Z"},{"alias_kind":"pith_short_8","alias_value":"C5IEQIOB","created_at":"2026-07-04T16:50:22Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2004:C5IEQIOB4MRNB2B2RXZN6PKSCQ","target":"record","payload":{"canonical_record":{"source":{"id":"quant-ph/0408031","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"quant-ph","submitted_at":"2004-08-05T00:22:44Z","cross_cats_sorted":[],"title_canon_sha256":"b9b4407ba505ae9e582d719d29a6752dd4aa3a58b112a5e77d656899bf988167","abstract_canon_sha256":"55fed49e25ad75e3d139cfa906c69c1df4b129d8f5c698f2fcf77aa07c94b248"},"schema_version":"1.0"},"canonical_sha256":"17504821c1e322d0e83a8df2df3d52140aa804512089cd6a220fc5eee8b123c8","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:50:22.595454Z","signature_b64":"MP1yyoCCr3VUASPua9eZEmTzpyw68KOl2Ir78u0J7wqYN2MqYoJ6DZSEB0af5S4j3EOidBRXCB7uaB8vn0eMDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"17504821c1e322d0e83a8df2df3d52140aa804512089cd6a220fc5eee8b123c8","last_reissued_at":"2026-07-04T16:50:22.595102Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:50:22.595102Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"quant-ph/0408031","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":"2026-07-04T16:50:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LteyhiMlQ26K6xycaRsEL9gS+WqBknf2R2myjIwQu6FuTFTgg3VuW01HE/tv7oZGmtds2QK7K3VDRsBz+oyPBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-05T02:45:27.063948Z"},"content_sha256":"c997c484c60bc9246b15d65f79c5b60d98c63eafe715cb0023c9d9d58f0cfcf9","schema_version":"1.0","event_id":"sha256:c997c484c60bc9246b15d65f79c5b60d98c63eafe715cb0023c9d9d58f0cfcf9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2004:C5IEQIOB4MRNB2B2RXZN6PKSCQ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Stability of Phase-modulated Quantum Key Distribution System","license":"","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Guang-Can Guo, Xiao-Fan Mo, You-zhen Gui, Zheng-Fu Han","submitted_at":"2004-08-05T00:22:44Z","abstract_excerpt":"Phase drift and random fluctuation of interference visibility in double unbalanced M-Z QKD system are observed and distinguished. It has been found that the interference visibilities are influenced deeply by the disturbance of transmission fiber. Theory analysis shows that the fluctuation is derived from the envioronmental disturbance on polarization characteristic of fiber, especially including transmission fiber. Finally, stability conditions of one-way anti-disturbed M-Z QKD system are given out, which provides a theoretical guide in pragmatic anti-disturbed QKD."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"quant-ph/0408031","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/quant-ph/0408031/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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-04T16:50:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"q9+7DiEBA/2m6pm5Zf8tb0Qa4/nLwhht7nwaP95smblTOYDQbV1iX9Tqvzhgdp2QWzYs/nNXqjxQSlsJa11QBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-05T02:45:27.064335Z"},"content_sha256":"8e0a1f6bbbb38ba2b66090a0825b4351984697de569b6844aff3c104425ebbb2","schema_version":"1.0","event_id":"sha256:8e0a1f6bbbb38ba2b66090a0825b4351984697de569b6844aff3c104425ebbb2"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/C5IEQIOB4MRNB2B2RXZN6PKSCQ/bundle.json","state_url":"https://pith.science/pith/C5IEQIOB4MRNB2B2RXZN6PKSCQ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/C5IEQIOB4MRNB2B2RXZN6PKSCQ/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":"2026-07-05T02:45:27Z","links":{"resolver":"https://pith.science/pith/C5IEQIOB4MRNB2B2RXZN6PKSCQ","bundle":"https://pith.science/pith/C5IEQIOB4MRNB2B2RXZN6PKSCQ/bundle.json","state":"https://pith.science/pith/C5IEQIOB4MRNB2B2RXZN6PKSCQ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/C5IEQIOB4MRNB2B2RXZN6PKSCQ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2004:C5IEQIOB4MRNB2B2RXZN6PKSCQ","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":"55fed49e25ad75e3d139cfa906c69c1df4b129d8f5c698f2fcf77aa07c94b248","cross_cats_sorted":[],"license":"","primary_cat":"quant-ph","submitted_at":"2004-08-05T00:22:44Z","title_canon_sha256":"b9b4407ba505ae9e582d719d29a6752dd4aa3a58b112a5e77d656899bf988167"},"schema_version":"1.0","source":{"id":"quant-ph/0408031","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"quant-ph/0408031","created_at":"2026-07-04T16:50:22Z"},{"alias_kind":"arxiv_version","alias_value":"quant-ph/0408031v1","created_at":"2026-07-04T16:50:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.quant-ph/0408031","created_at":"2026-07-04T16:50:22Z"},{"alias_kind":"pith_short_12","alias_value":"C5IEQIOB4MRN","created_at":"2026-07-04T16:50:22Z"},{"alias_kind":"pith_short_16","alias_value":"C5IEQIOB4MRNB2B2","created_at":"2026-07-04T16:50:22Z"},{"alias_kind":"pith_short_8","alias_value":"C5IEQIOB","created_at":"2026-07-04T16:50:22Z"}],"graph_snapshots":[{"event_id":"sha256:8e0a1f6bbbb38ba2b66090a0825b4351984697de569b6844aff3c104425ebbb2","target":"graph","created_at":"2026-07-04T16:50:22Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/quant-ph/0408031/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Phase drift and random fluctuation of interference visibility in double unbalanced M-Z QKD system are observed and distinguished. It has been found that the interference visibilities are influenced deeply by the disturbance of transmission fiber. Theory analysis shows that the fluctuation is derived from the envioronmental disturbance on polarization characteristic of fiber, especially including transmission fiber. Finally, stability conditions of one-way anti-disturbed M-Z QKD system are given out, which provides a theoretical guide in pragmatic anti-disturbed QKD.","authors_text":"Guang-Can Guo, Xiao-Fan Mo, You-zhen Gui, Zheng-Fu Han","cross_cats":[],"headline":"","license":"","primary_cat":"quant-ph","submitted_at":"2004-08-05T00:22:44Z","title":"Stability of Phase-modulated Quantum Key Distribution System"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"quant-ph/0408031","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:c997c484c60bc9246b15d65f79c5b60d98c63eafe715cb0023c9d9d58f0cfcf9","target":"record","created_at":"2026-07-04T16:50:22Z","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":"55fed49e25ad75e3d139cfa906c69c1df4b129d8f5c698f2fcf77aa07c94b248","cross_cats_sorted":[],"license":"","primary_cat":"quant-ph","submitted_at":"2004-08-05T00:22:44Z","title_canon_sha256":"b9b4407ba505ae9e582d719d29a6752dd4aa3a58b112a5e77d656899bf988167"},"schema_version":"1.0","source":{"id":"quant-ph/0408031","kind":"arxiv","version":1}},"canonical_sha256":"17504821c1e322d0e83a8df2df3d52140aa804512089cd6a220fc5eee8b123c8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"17504821c1e322d0e83a8df2df3d52140aa804512089cd6a220fc5eee8b123c8","first_computed_at":"2026-07-04T16:50:22.595102Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:50:22.595102Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"MP1yyoCCr3VUASPua9eZEmTzpyw68KOl2Ir78u0J7wqYN2MqYoJ6DZSEB0af5S4j3EOidBRXCB7uaB8vn0eMDw==","signature_status":"signed_v1","signed_at":"2026-07-04T16:50:22.595454Z","signed_message":"canonical_sha256_bytes"},"source_id":"quant-ph/0408031","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c997c484c60bc9246b15d65f79c5b60d98c63eafe715cb0023c9d9d58f0cfcf9","sha256:8e0a1f6bbbb38ba2b66090a0825b4351984697de569b6844aff3c104425ebbb2"],"state_sha256":"3ebda5c6c72d17348e3558cd71e0b664e7fa65f46de314da8d4038a25af8be5c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"S+lqDDU76edf54Y2lzpKMYrfbDs+qUWjrSBJ1+okfUUd0szWu+o+kVg6yNRkycVrD+grKh5/YgflvEgFI/r7AA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-05T02:45:27.066353Z","bundle_sha256":"c4015788768787ad0c1f1703f9c86063bc8d61091f9bf810d8e1a382c7501e43"}}