{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2003:A72BRSVEDMMESS56XFMIIVIJEC","short_pith_number":"pith:A72BRSVE","canonical_record":{"source":{"id":"physics/0304105","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"physics.ins-det","submitted_at":"2003-04-29T05:17:55Z","cross_cats_sorted":[],"title_canon_sha256":"01a7366d140386bcdf06697b170a99abbab61c40abed13cf8d1799de3b4149fc","abstract_canon_sha256":"1bcf6783770482ad9a3b3118554aca06c629906c57437035427f45f47c7bd7a0"},"schema_version":"1.0"},"canonical_sha256":"07f418caa41b18494bbeb95884550920ab056c97bd9109c0412a77cc8f38640c","source":{"kind":"arxiv","id":"physics/0304105","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"physics/0304105","created_at":"2026-05-18T01:38:08Z"},{"alias_kind":"arxiv_version","alias_value":"physics/0304105v1","created_at":"2026-05-18T01:38:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.physics/0304105","created_at":"2026-05-18T01:38:08Z"},{"alias_kind":"pith_short_12","alias_value":"A72BRSVEDMME","created_at":"2026-05-18T12:25:51Z"},{"alias_kind":"pith_short_16","alias_value":"A72BRSVEDMMESS56","created_at":"2026-05-18T12:25:51Z"},{"alias_kind":"pith_short_8","alias_value":"A72BRSVE","created_at":"2026-05-18T12:25:51Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2003:A72BRSVEDMMESS56XFMIIVIJEC","target":"record","payload":{"canonical_record":{"source":{"id":"physics/0304105","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"physics.ins-det","submitted_at":"2003-04-29T05:17:55Z","cross_cats_sorted":[],"title_canon_sha256":"01a7366d140386bcdf06697b170a99abbab61c40abed13cf8d1799de3b4149fc","abstract_canon_sha256":"1bcf6783770482ad9a3b3118554aca06c629906c57437035427f45f47c7bd7a0"},"schema_version":"1.0"},"canonical_sha256":"07f418caa41b18494bbeb95884550920ab056c97bd9109c0412a77cc8f38640c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:38:08.932355Z","signature_b64":"MDXVIG9z/oQqDmEu/Y7db4v5yBnqSDCqO6m4fsYcv5pa5oySoRZMpkzibGsroS8ws1loJIwbLGw4W3s7CfGKDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"07f418caa41b18494bbeb95884550920ab056c97bd9109c0412a77cc8f38640c","last_reissued_at":"2026-05-18T01:38:08.931746Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:38:08.931746Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"physics/0304105","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":"2026-05-18T01:38:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FGxWny4qc2r0MfZRimbwtw+z0mQU0nvDVCoCiw9FY01rk/cmtdxafLLH5eK3bObey8HmTwJSxRpbR4VqLJwfDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T23:58:34.982038Z"},"content_sha256":"964f64c6f8b3b475ebccc7c851dc6a962c738c15352b887e11117a2faad0f13e","schema_version":"1.0","event_id":"sha256:964f64c6f8b3b475ebccc7c851dc6a962c738c15352b887e11117a2faad0f13e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2003:A72BRSVEDMMESS56XFMIIVIJEC","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Optical Communication Noise Rejection Using Correlated Photons","license":"","headline":"","cross_cats":[],"primary_cat":"physics.ins-det","authors_text":"Deborah J. Jackson, George M. Hockney, Jonathan P. Dowling","submitted_at":"2003-04-29T05:17:55Z","abstract_excerpt":"This paper describes a completely new way to perform noise rejection using a two-photon sensitive detector and taking advantage of the properties of correlated photons to improve an optical communications link in the presence of uncorrelated noise. In particular, a detailed analysis is made of the case where a classical link would be saturated by an intense background, such as when a satellite is in front of the sun,and identifies a regime where the quantum correlating system has superior performance."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"physics/0304105","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":"2026-05-18T01:38:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9/p7FHQK/UCtu7qSYE0RCfWnZrr97tXWtclpufGU96OFYOZVWgLnkgUrtlf8MKys/3/oyeqfl9q4QRDY73xzAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T23:58:34.982738Z"},"content_sha256":"1b37d6b9822a682e854212c21b5bfe5afb4825f4a4fd3dfee9d1aaa7f78a6ae5","schema_version":"1.0","event_id":"sha256:1b37d6b9822a682e854212c21b5bfe5afb4825f4a4fd3dfee9d1aaa7f78a6ae5"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/A72BRSVEDMMESS56XFMIIVIJEC/bundle.json","state_url":"https://pith.science/pith/A72BRSVEDMMESS56XFMIIVIJEC/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/A72BRSVEDMMESS56XFMIIVIJEC/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":"2026-05-25T23:58:34Z","links":{"resolver":"https://pith.science/pith/A72BRSVEDMMESS56XFMIIVIJEC","bundle":"https://pith.science/pith/A72BRSVEDMMESS56XFMIIVIJEC/bundle.json","state":"https://pith.science/pith/A72BRSVEDMMESS56XFMIIVIJEC/state.json","well_known_bundle":"https://pith.science/.well-known/pith/A72BRSVEDMMESS56XFMIIVIJEC/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2003:A72BRSVEDMMESS56XFMIIVIJEC","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":"1bcf6783770482ad9a3b3118554aca06c629906c57437035427f45f47c7bd7a0","cross_cats_sorted":[],"license":"","primary_cat":"physics.ins-det","submitted_at":"2003-04-29T05:17:55Z","title_canon_sha256":"01a7366d140386bcdf06697b170a99abbab61c40abed13cf8d1799de3b4149fc"},"schema_version":"1.0","source":{"id":"physics/0304105","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"physics/0304105","created_at":"2026-05-18T01:38:08Z"},{"alias_kind":"arxiv_version","alias_value":"physics/0304105v1","created_at":"2026-05-18T01:38:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.physics/0304105","created_at":"2026-05-18T01:38:08Z"},{"alias_kind":"pith_short_12","alias_value":"A72BRSVEDMME","created_at":"2026-05-18T12:25:51Z"},{"alias_kind":"pith_short_16","alias_value":"A72BRSVEDMMESS56","created_at":"2026-05-18T12:25:51Z"},{"alias_kind":"pith_short_8","alias_value":"A72BRSVE","created_at":"2026-05-18T12:25:51Z"}],"graph_snapshots":[{"event_id":"sha256:1b37d6b9822a682e854212c21b5bfe5afb4825f4a4fd3dfee9d1aaa7f78a6ae5","target":"graph","created_at":"2026-05-18T01:38:08Z","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":"This paper describes a completely new way to perform noise rejection using a two-photon sensitive detector and taking advantage of the properties of correlated photons to improve an optical communications link in the presence of uncorrelated noise. In particular, a detailed analysis is made of the case where a classical link would be saturated by an intense background, such as when a satellite is in front of the sun,and identifies a regime where the quantum correlating system has superior performance.","authors_text":"Deborah J. Jackson, George M. Hockney, Jonathan P. Dowling","cross_cats":[],"headline":"","license":"","primary_cat":"physics.ins-det","submitted_at":"2003-04-29T05:17:55Z","title":"Optical Communication Noise Rejection Using Correlated Photons"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"physics/0304105","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":"sha256:964f64c6f8b3b475ebccc7c851dc6a962c738c15352b887e11117a2faad0f13e","target":"record","created_at":"2026-05-18T01:38:08Z","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":"1bcf6783770482ad9a3b3118554aca06c629906c57437035427f45f47c7bd7a0","cross_cats_sorted":[],"license":"","primary_cat":"physics.ins-det","submitted_at":"2003-04-29T05:17:55Z","title_canon_sha256":"01a7366d140386bcdf06697b170a99abbab61c40abed13cf8d1799de3b4149fc"},"schema_version":"1.0","source":{"id":"physics/0304105","kind":"arxiv","version":1}},"canonical_sha256":"07f418caa41b18494bbeb95884550920ab056c97bd9109c0412a77cc8f38640c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"07f418caa41b18494bbeb95884550920ab056c97bd9109c0412a77cc8f38640c","first_computed_at":"2026-05-18T01:38:08.931746Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:38:08.931746Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"MDXVIG9z/oQqDmEu/Y7db4v5yBnqSDCqO6m4fsYcv5pa5oySoRZMpkzibGsroS8ws1loJIwbLGw4W3s7CfGKDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:38:08.932355Z","signed_message":"canonical_sha256_bytes"},"source_id":"physics/0304105","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:964f64c6f8b3b475ebccc7c851dc6a962c738c15352b887e11117a2faad0f13e","sha256:1b37d6b9822a682e854212c21b5bfe5afb4825f4a4fd3dfee9d1aaa7f78a6ae5"],"state_sha256":"f735eaaecb0001a0d38f27ef4f01a16e001e146a94cc4e6cda7ca7f2ffe1b510"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8N+6boJo2N3VyI4/Gx5eh9qIJlsxIdkOop/GJoX50qmbAE5zJv/GBYoHZWkplkEubVGIP+rrcpqn/hP+V70kAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T23:58:34.986284Z","bundle_sha256":"ee6d7c104cf0ecc6717071aa283f414716869c8471d5bd3df3986fe752739efd"}}