{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:7YYHA6YTUQXFDIXRVE6IAPZ2OF","short_pith_number":"pith:7YYHA6YT","canonical_record":{"source":{"id":"2205.15161","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2022-05-30T15:10:07Z","cross_cats_sorted":[],"title_canon_sha256":"896170ccd61b8c3d37f8f693142183557cbe01e476b82ca6aa9745bfd7d98e1a","abstract_canon_sha256":"8a02b6743fa7843b703bb3fdd16ceda4f70cf82f3d57aff292f840eb3b18ab33"},"schema_version":"1.0"},"canonical_sha256":"fe30707b13a42e51a2f1a93c803f3a7145050bbf4f76439aee13b6782a1a0446","source":{"kind":"arxiv","id":"2205.15161","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2205.15161","created_at":"2026-07-05T04:27:25Z"},{"alias_kind":"arxiv_version","alias_value":"2205.15161v1","created_at":"2026-07-05T04:27:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2205.15161","created_at":"2026-07-05T04:27:25Z"},{"alias_kind":"pith_short_12","alias_value":"7YYHA6YTUQXF","created_at":"2026-07-05T04:27:25Z"},{"alias_kind":"pith_short_16","alias_value":"7YYHA6YTUQXFDIXR","created_at":"2026-07-05T04:27:25Z"},{"alias_kind":"pith_short_8","alias_value":"7YYHA6YT","created_at":"2026-07-05T04:27:25Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:7YYHA6YTUQXFDIXRVE6IAPZ2OF","target":"record","payload":{"canonical_record":{"source":{"id":"2205.15161","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2022-05-30T15:10:07Z","cross_cats_sorted":[],"title_canon_sha256":"896170ccd61b8c3d37f8f693142183557cbe01e476b82ca6aa9745bfd7d98e1a","abstract_canon_sha256":"8a02b6743fa7843b703bb3fdd16ceda4f70cf82f3d57aff292f840eb3b18ab33"},"schema_version":"1.0"},"canonical_sha256":"fe30707b13a42e51a2f1a93c803f3a7145050bbf4f76439aee13b6782a1a0446","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T04:27:25.180463Z","signature_b64":"rbCIWB07UfnUbUzUv/P6kqUYrCM95d+c2FUirJXxa+qcx4f3x0FSf/QBYMIvaFxn8QsaRimoDy0sMNs+WrMXBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"fe30707b13a42e51a2f1a93c803f3a7145050bbf4f76439aee13b6782a1a0446","last_reissued_at":"2026-07-05T04:27:25.179976Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T04:27:25.179976Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2205.15161","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":"2026-07-05T04:27:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"D6os8P/wEUV28c0SSc5d6DILJfAeY7Ut12hQUQkXC1DU8X/h3i2JhCiDp++iy9UgHrWeH+1ofmkuBa2iq7QxCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-13T02:38:43.941817Z"},"content_sha256":"a82446c170d8a7ef1d4805c4cc40b30562ba8e5301bc7538983e158507ebfb22","schema_version":"1.0","event_id":"sha256:a82446c170d8a7ef1d4805c4cc40b30562ba8e5301bc7538983e158507ebfb22"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:7YYHA6YTUQXFDIXRVE6IAPZ2OF","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Continuous-Variable Quantum Key Distribution Over 60 km Optical Fiber With Real Local Oscillator","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Adnan A.E. Hajomer, Hossein Mani, Hou-Man Chin, Nitin Jain, Tobias Gehring, Ulrik L. Andersen","submitted_at":"2022-05-30T15:10:07Z","abstract_excerpt":"We report the first continuous-variable quantum key distribution experiment that enables the generation of secure key over a 60 km fiber channel with locally generated local oscillator. This is achieved by controlling the excess noise using machine learning for phase noise compensation while operating the system at a low modulation variance"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2205.15161","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/2205.15161/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":"2026-07-05T04:27:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JjN56VaW/lPaRCm0MhmcjO9rSergCClFAdVNxkbZAq57Ia4paXxSpoZ8W1LqwjPgbKRJTNhrXWouuIqpBxM1Aw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-13T02:38:43.942344Z"},"content_sha256":"68c469e38f1705d138ce64ced15947fb806f859ebd2147ca6c5b09c14fca520b","schema_version":"1.0","event_id":"sha256:68c469e38f1705d138ce64ced15947fb806f859ebd2147ca6c5b09c14fca520b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/7YYHA6YTUQXFDIXRVE6IAPZ2OF/bundle.json","state_url":"https://pith.science/pith/7YYHA6YTUQXFDIXRVE6IAPZ2OF/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/7YYHA6YTUQXFDIXRVE6IAPZ2OF/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":"2026-08-13T02:38:43Z","links":{"resolver":"https://pith.science/pith/7YYHA6YTUQXFDIXRVE6IAPZ2OF","bundle":"https://pith.science/pith/7YYHA6YTUQXFDIXRVE6IAPZ2OF/bundle.json","state":"https://pith.science/pith/7YYHA6YTUQXFDIXRVE6IAPZ2OF/state.json","well_known_bundle":"https://pith.science/.well-known/pith/7YYHA6YTUQXFDIXRVE6IAPZ2OF/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:7YYHA6YTUQXFDIXRVE6IAPZ2OF","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":"8a02b6743fa7843b703bb3fdd16ceda4f70cf82f3d57aff292f840eb3b18ab33","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2022-05-30T15:10:07Z","title_canon_sha256":"896170ccd61b8c3d37f8f693142183557cbe01e476b82ca6aa9745bfd7d98e1a"},"schema_version":"1.0","source":{"id":"2205.15161","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2205.15161","created_at":"2026-07-05T04:27:25Z"},{"alias_kind":"arxiv_version","alias_value":"2205.15161v1","created_at":"2026-07-05T04:27:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2205.15161","created_at":"2026-07-05T04:27:25Z"},{"alias_kind":"pith_short_12","alias_value":"7YYHA6YTUQXF","created_at":"2026-07-05T04:27:25Z"},{"alias_kind":"pith_short_16","alias_value":"7YYHA6YTUQXFDIXR","created_at":"2026-07-05T04:27:25Z"},{"alias_kind":"pith_short_8","alias_value":"7YYHA6YT","created_at":"2026-07-05T04:27:25Z"}],"graph_snapshots":[{"event_id":"sha256:68c469e38f1705d138ce64ced15947fb806f859ebd2147ca6c5b09c14fca520b","target":"graph","created_at":"2026-07-05T04:27:25Z","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/2205.15161/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We report the first continuous-variable quantum key distribution experiment that enables the generation of secure key over a 60 km fiber channel with locally generated local oscillator. This is achieved by controlling the excess noise using machine learning for phase noise compensation while operating the system at a low modulation variance","authors_text":"Adnan A.E. Hajomer, Hossein Mani, Hou-Man Chin, Nitin Jain, Tobias Gehring, Ulrik L. Andersen","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2022-05-30T15:10:07Z","title":"Continuous-Variable Quantum Key Distribution Over 60 km Optical Fiber With Real Local Oscillator"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2205.15161","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:a82446c170d8a7ef1d4805c4cc40b30562ba8e5301bc7538983e158507ebfb22","target":"record","created_at":"2026-07-05T04:27:25Z","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":"8a02b6743fa7843b703bb3fdd16ceda4f70cf82f3d57aff292f840eb3b18ab33","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2022-05-30T15:10:07Z","title_canon_sha256":"896170ccd61b8c3d37f8f693142183557cbe01e476b82ca6aa9745bfd7d98e1a"},"schema_version":"1.0","source":{"id":"2205.15161","kind":"arxiv","version":1}},"canonical_sha256":"fe30707b13a42e51a2f1a93c803f3a7145050bbf4f76439aee13b6782a1a0446","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"fe30707b13a42e51a2f1a93c803f3a7145050bbf4f76439aee13b6782a1a0446","first_computed_at":"2026-07-05T04:27:25.179976Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:27:25.179976Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"rbCIWB07UfnUbUzUv/P6kqUYrCM95d+c2FUirJXxa+qcx4f3x0FSf/QBYMIvaFxn8QsaRimoDy0sMNs+WrMXBw==","signature_status":"signed_v1","signed_at":"2026-07-05T04:27:25.180463Z","signed_message":"canonical_sha256_bytes"},"source_id":"2205.15161","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a82446c170d8a7ef1d4805c4cc40b30562ba8e5301bc7538983e158507ebfb22","sha256:68c469e38f1705d138ce64ced15947fb806f859ebd2147ca6c5b09c14fca520b"],"state_sha256":"d92acc61c9237368404fd06910b97d46fdbc89122c4630cb8c9267d1ce92516f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZPkm6LfnMsrSJBgvmu2rJyiG/ivmJrK7adAMC/FMREaSbDy1Fmc5PNKunzND3//FTtvoF3mEUsqy4VL9BlM5BA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-13T02:38:43.947691Z","bundle_sha256":"e437691315905d682cfcd76cf3f9fa5bbc33b0535b7bb7188c90b78da1c5d174"}}