{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:GVUCQC6GDRB53NYUNOMZP73EXT","short_pith_number":"pith:GVUCQC6G","canonical_record":{"source":{"id":"1108.1829","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2011-08-08T23:51:00Z","cross_cats_sorted":["physics.optics"],"title_canon_sha256":"f1a35ce70a03233ee957cbf2acfb0742c813d3d8eae7b237e622c4cb4e878d18","abstract_canon_sha256":"924c135ebe35fec96286231f3771e3e97e071a9b15604b8b35c8201e2d0b6695"},"schema_version":"1.0"},"canonical_sha256":"3568280bc61c43ddb7146b9997ff64bcf61596689c7a3a93bf4b363effef0158","source":{"kind":"arxiv","id":"1108.1829","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1108.1829","created_at":"2026-05-18T04:05:38Z"},{"alias_kind":"arxiv_version","alias_value":"1108.1829v2","created_at":"2026-05-18T04:05:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1108.1829","created_at":"2026-05-18T04:05:38Z"},{"alias_kind":"pith_short_12","alias_value":"GVUCQC6GDRB5","created_at":"2026-05-18T12:26:30Z"},{"alias_kind":"pith_short_16","alias_value":"GVUCQC6GDRB53NYU","created_at":"2026-05-18T12:26:30Z"},{"alias_kind":"pith_short_8","alias_value":"GVUCQC6G","created_at":"2026-05-18T12:26:30Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:GVUCQC6GDRB53NYUNOMZP73EXT","target":"record","payload":{"canonical_record":{"source":{"id":"1108.1829","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2011-08-08T23:51:00Z","cross_cats_sorted":["physics.optics"],"title_canon_sha256":"f1a35ce70a03233ee957cbf2acfb0742c813d3d8eae7b237e622c4cb4e878d18","abstract_canon_sha256":"924c135ebe35fec96286231f3771e3e97e071a9b15604b8b35c8201e2d0b6695"},"schema_version":"1.0"},"canonical_sha256":"3568280bc61c43ddb7146b9997ff64bcf61596689c7a3a93bf4b363effef0158","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:05:38.461814Z","signature_b64":"FnDoSQb/Xk84NAGgYDKXjX/f28bqVn2d7S8qeDrq2ku44OxBwMTGhnpj1GC8A1JiTJqiTUOkrfoUYt4/qrGnBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3568280bc61c43ddb7146b9997ff64bcf61596689c7a3a93bf4b363effef0158","last_reissued_at":"2026-05-18T04:05:38.461418Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:05:38.461418Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1108.1829","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T04:05:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FLVc7bERmDEehcH/AI8PYGRuYBSSF1l8RfI0+X07Udd6QrabdYjxrMRmmvqLEjG2CNoxqd9usEMRyiBoAZBcDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T17:48:23.532873Z"},"content_sha256":"3095dc5ad85ff1fdf220ff06098768142e5abaeabb7313e29b274f863ae2cea1","schema_version":"1.0","event_id":"sha256:3095dc5ad85ff1fdf220ff06098768142e5abaeabb7313e29b274f863ae2cea1"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:GVUCQC6GDRB53NYUNOMZP73EXT","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Quantum Nonlocality in Weak-Thermal-Light Interferometry","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.optics"],"primary_cat":"quant-ph","authors_text":"Mankei Tsang","submitted_at":"2011-08-08T23:51:00Z","abstract_excerpt":"In astronomy, interferometry of light collected by separate telescopes is often performed by physically bringing the optical paths together in the form of Young's double-slit experiment. Optical loss severely limits the efficiency of this so-called direct detection method, motivating the fundamental question of whether one can achieve a comparable performance using separate optical measurements at the two telescopes before combining the measurement results. Using quantum mechanics and estimation theory, here I show that any such spatially local measurement scheme, such as heterodyne detection,"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1108.1829","kind":"arxiv","version":2},"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":"2026-05-18T04:05:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"URj2pEKlI9FCz84AxQ8aWy/7a2ZahcVRMLPAoUQt/cRscm3/R+++AglSDNlWImICQvf/uAOxL1LBEBmZGCD1Aw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T17:48:23.533636Z"},"content_sha256":"99669d2853ba5b72e953a9c43734bbc80386d3d934300adc940ee8dc7d7d263a","schema_version":"1.0","event_id":"sha256:99669d2853ba5b72e953a9c43734bbc80386d3d934300adc940ee8dc7d7d263a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/GVUCQC6GDRB53NYUNOMZP73EXT/bundle.json","state_url":"https://pith.science/pith/GVUCQC6GDRB53NYUNOMZP73EXT/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/GVUCQC6GDRB53NYUNOMZP73EXT/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":"2026-06-08T17:48:23Z","links":{"resolver":"https://pith.science/pith/GVUCQC6GDRB53NYUNOMZP73EXT","bundle":"https://pith.science/pith/GVUCQC6GDRB53NYUNOMZP73EXT/bundle.json","state":"https://pith.science/pith/GVUCQC6GDRB53NYUNOMZP73EXT/state.json","well_known_bundle":"https://pith.science/.well-known/pith/GVUCQC6GDRB53NYUNOMZP73EXT/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:GVUCQC6GDRB53NYUNOMZP73EXT","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":"924c135ebe35fec96286231f3771e3e97e071a9b15604b8b35c8201e2d0b6695","cross_cats_sorted":["physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2011-08-08T23:51:00Z","title_canon_sha256":"f1a35ce70a03233ee957cbf2acfb0742c813d3d8eae7b237e622c4cb4e878d18"},"schema_version":"1.0","source":{"id":"1108.1829","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1108.1829","created_at":"2026-05-18T04:05:38Z"},{"alias_kind":"arxiv_version","alias_value":"1108.1829v2","created_at":"2026-05-18T04:05:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1108.1829","created_at":"2026-05-18T04:05:38Z"},{"alias_kind":"pith_short_12","alias_value":"GVUCQC6GDRB5","created_at":"2026-05-18T12:26:30Z"},{"alias_kind":"pith_short_16","alias_value":"GVUCQC6GDRB53NYU","created_at":"2026-05-18T12:26:30Z"},{"alias_kind":"pith_short_8","alias_value":"GVUCQC6G","created_at":"2026-05-18T12:26:30Z"}],"graph_snapshots":[{"event_id":"sha256:99669d2853ba5b72e953a9c43734bbc80386d3d934300adc940ee8dc7d7d263a","target":"graph","created_at":"2026-05-18T04:05:38Z","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 astronomy, interferometry of light collected by separate telescopes is often performed by physically bringing the optical paths together in the form of Young's double-slit experiment. Optical loss severely limits the efficiency of this so-called direct detection method, motivating the fundamental question of whether one can achieve a comparable performance using separate optical measurements at the two telescopes before combining the measurement results. Using quantum mechanics and estimation theory, here I show that any such spatially local measurement scheme, such as heterodyne detection,","authors_text":"Mankei Tsang","cross_cats":["physics.optics"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2011-08-08T23:51:00Z","title":"Quantum Nonlocality in Weak-Thermal-Light Interferometry"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1108.1829","kind":"arxiv","version":2},"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":"sha256:3095dc5ad85ff1fdf220ff06098768142e5abaeabb7313e29b274f863ae2cea1","target":"record","created_at":"2026-05-18T04:05:38Z","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":"924c135ebe35fec96286231f3771e3e97e071a9b15604b8b35c8201e2d0b6695","cross_cats_sorted":["physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2011-08-08T23:51:00Z","title_canon_sha256":"f1a35ce70a03233ee957cbf2acfb0742c813d3d8eae7b237e622c4cb4e878d18"},"schema_version":"1.0","source":{"id":"1108.1829","kind":"arxiv","version":2}},"canonical_sha256":"3568280bc61c43ddb7146b9997ff64bcf61596689c7a3a93bf4b363effef0158","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3568280bc61c43ddb7146b9997ff64bcf61596689c7a3a93bf4b363effef0158","first_computed_at":"2026-05-18T04:05:38.461418Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:05:38.461418Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"FnDoSQb/Xk84NAGgYDKXjX/f28bqVn2d7S8qeDrq2ku44OxBwMTGhnpj1GC8A1JiTJqiTUOkrfoUYt4/qrGnBg==","signature_status":"signed_v1","signed_at":"2026-05-18T04:05:38.461814Z","signed_message":"canonical_sha256_bytes"},"source_id":"1108.1829","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3095dc5ad85ff1fdf220ff06098768142e5abaeabb7313e29b274f863ae2cea1","sha256:99669d2853ba5b72e953a9c43734bbc80386d3d934300adc940ee8dc7d7d263a"],"state_sha256":"1c232267ce4211a80dfca61d1b6b44a2c1d049eeb597cc5fbb6b25884bff7ea2"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RQf2i2/l8Ndyk8l1P+XtidejM0NGtksGIae5UyGJcbp4l88i1ftK59XAbPF/ctBE3vZ2zVaJA1oY3va9gnGTAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-08T17:48:23.537509Z","bundle_sha256":"41744e8299a3c3a85af354ebd3ee63defbfc4ab992269e500d8462699e9d63fa"}}