{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:VV3QLXWRU6VRXUH7ZOQYJVHR4M","short_pith_number":"pith:VV3QLXWR","canonical_record":{"source":{"id":"1002.0210","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2010-02-01T09:47:17Z","cross_cats_sorted":[],"title_canon_sha256":"bdbb6818b3d6319aac34b218544281ecedfe49f7cd9f105c15892dcd7f201fa8","abstract_canon_sha256":"af76ba739c60b1757be61de9eb1d0417a4b988d23d781626ca325ff515a58fad"},"schema_version":"1.0"},"canonical_sha256":"ad7705ded1a7ab1bd0ffcba184d4f1e32c0edc304a3ed4f32c797866e8a0f78d","source":{"kind":"arxiv","id":"1002.0210","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1002.0210","created_at":"2026-05-18T02:09:21Z"},{"alias_kind":"arxiv_version","alias_value":"1002.0210v1","created_at":"2026-05-18T02:09:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1002.0210","created_at":"2026-05-18T02:09:21Z"},{"alias_kind":"pith_short_12","alias_value":"VV3QLXWRU6VR","created_at":"2026-05-18T12:26:15Z"},{"alias_kind":"pith_short_16","alias_value":"VV3QLXWRU6VRXUH7","created_at":"2026-05-18T12:26:15Z"},{"alias_kind":"pith_short_8","alias_value":"VV3QLXWR","created_at":"2026-05-18T12:26:15Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:VV3QLXWRU6VRXUH7ZOQYJVHR4M","target":"record","payload":{"canonical_record":{"source":{"id":"1002.0210","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2010-02-01T09:47:17Z","cross_cats_sorted":[],"title_canon_sha256":"bdbb6818b3d6319aac34b218544281ecedfe49f7cd9f105c15892dcd7f201fa8","abstract_canon_sha256":"af76ba739c60b1757be61de9eb1d0417a4b988d23d781626ca325ff515a58fad"},"schema_version":"1.0"},"canonical_sha256":"ad7705ded1a7ab1bd0ffcba184d4f1e32c0edc304a3ed4f32c797866e8a0f78d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:09:21.565487Z","signature_b64":"rvgtOjBehgvnBemYjxdWk0pElijbAPXuDBecZ8ujWliMZeq8sQ47AbWqXwWFaUVYmrgLFsH5jKFScEKrB/RuCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ad7705ded1a7ab1bd0ffcba184d4f1e32c0edc304a3ed4f32c797866e8a0f78d","last_reissued_at":"2026-05-18T02:09:21.564914Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:09:21.564914Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1002.0210","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":"2026-05-18T02:09:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"q49kZ50Xypw7M9VZcB35wv3NVL6PMo9ljpX9jt73611uwhZguTl8aBcxux+PFHznO4mG91rQVwkrJqquMCUhBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T18:04:14.581445Z"},"content_sha256":"59030d6fb51392fcd50f65c6f05096fc664b2bd74fe87fc4d57964a466b49bca","schema_version":"1.0","event_id":"sha256:59030d6fb51392fcd50f65c6f05096fc664b2bd74fe87fc4d57964a466b49bca"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:VV3QLXWRU6VRXUH7ZOQYJVHR4M","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Photon-number correlations by photon-number resolving detectors","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Alessandra Andreoni, Alessia Allevi, Maria Bondani","submitted_at":"2010-02-01T09:47:17Z","abstract_excerpt":"We demonstrate that by using a pair of photodetectors endowed with internal gain we are able to quantify the correlation coefficient between the two components of a pulsed bipartite state in the mesoscopic intensity regime (less than 100 mean photons)."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1002.0210","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":"2026-05-18T02:09:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"g6BxtJeFu7xk5OsHd8BCHmZDZ1VnctZaJgB4OvUCVjv8dyIxMgoTT8YolAupzsud5xvTTYNzBPdGevvV7CZmAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T18:04:14.581803Z"},"content_sha256":"ee23f2dc0b6365f970cfe461594c891fc1f18b799832eacbe00cb4de308b39c7","schema_version":"1.0","event_id":"sha256:ee23f2dc0b6365f970cfe461594c891fc1f18b799832eacbe00cb4de308b39c7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/VV3QLXWRU6VRXUH7ZOQYJVHR4M/bundle.json","state_url":"https://pith.science/pith/VV3QLXWRU6VRXUH7ZOQYJVHR4M/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/VV3QLXWRU6VRXUH7ZOQYJVHR4M/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":"2026-06-05T18:04:14Z","links":{"resolver":"https://pith.science/pith/VV3QLXWRU6VRXUH7ZOQYJVHR4M","bundle":"https://pith.science/pith/VV3QLXWRU6VRXUH7ZOQYJVHR4M/bundle.json","state":"https://pith.science/pith/VV3QLXWRU6VRXUH7ZOQYJVHR4M/state.json","well_known_bundle":"https://pith.science/.well-known/pith/VV3QLXWRU6VRXUH7ZOQYJVHR4M/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:VV3QLXWRU6VRXUH7ZOQYJVHR4M","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":"af76ba739c60b1757be61de9eb1d0417a4b988d23d781626ca325ff515a58fad","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2010-02-01T09:47:17Z","title_canon_sha256":"bdbb6818b3d6319aac34b218544281ecedfe49f7cd9f105c15892dcd7f201fa8"},"schema_version":"1.0","source":{"id":"1002.0210","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1002.0210","created_at":"2026-05-18T02:09:21Z"},{"alias_kind":"arxiv_version","alias_value":"1002.0210v1","created_at":"2026-05-18T02:09:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1002.0210","created_at":"2026-05-18T02:09:21Z"},{"alias_kind":"pith_short_12","alias_value":"VV3QLXWRU6VR","created_at":"2026-05-18T12:26:15Z"},{"alias_kind":"pith_short_16","alias_value":"VV3QLXWRU6VRXUH7","created_at":"2026-05-18T12:26:15Z"},{"alias_kind":"pith_short_8","alias_value":"VV3QLXWR","created_at":"2026-05-18T12:26:15Z"}],"graph_snapshots":[{"event_id":"sha256:ee23f2dc0b6365f970cfe461594c891fc1f18b799832eacbe00cb4de308b39c7","target":"graph","created_at":"2026-05-18T02:09:21Z","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":"We demonstrate that by using a pair of photodetectors endowed with internal gain we are able to quantify the correlation coefficient between the two components of a pulsed bipartite state in the mesoscopic intensity regime (less than 100 mean photons).","authors_text":"Alessandra Andreoni, Alessia Allevi, Maria Bondani","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2010-02-01T09:47:17Z","title":"Photon-number correlations by photon-number resolving detectors"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1002.0210","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":"sha256:59030d6fb51392fcd50f65c6f05096fc664b2bd74fe87fc4d57964a466b49bca","target":"record","created_at":"2026-05-18T02:09:21Z","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":"af76ba739c60b1757be61de9eb1d0417a4b988d23d781626ca325ff515a58fad","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2010-02-01T09:47:17Z","title_canon_sha256":"bdbb6818b3d6319aac34b218544281ecedfe49f7cd9f105c15892dcd7f201fa8"},"schema_version":"1.0","source":{"id":"1002.0210","kind":"arxiv","version":1}},"canonical_sha256":"ad7705ded1a7ab1bd0ffcba184d4f1e32c0edc304a3ed4f32c797866e8a0f78d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ad7705ded1a7ab1bd0ffcba184d4f1e32c0edc304a3ed4f32c797866e8a0f78d","first_computed_at":"2026-05-18T02:09:21.564914Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:09:21.564914Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"rvgtOjBehgvnBemYjxdWk0pElijbAPXuDBecZ8ujWliMZeq8sQ47AbWqXwWFaUVYmrgLFsH5jKFScEKrB/RuCA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:09:21.565487Z","signed_message":"canonical_sha256_bytes"},"source_id":"1002.0210","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:59030d6fb51392fcd50f65c6f05096fc664b2bd74fe87fc4d57964a466b49bca","sha256:ee23f2dc0b6365f970cfe461594c891fc1f18b799832eacbe00cb4de308b39c7"],"state_sha256":"e20c0a70d319979f8b5e333e3000d44445e4e225c5bc5acf96cb16bbc78c1879"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"M6Bkk5unifRbJgThjQmQRJAu+Q4ZWmhb089HQojnw/g696QrLJhiEbywzLFg0xVbOBylhE42eN5dZbfIXyZZCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-05T18:04:14.584115Z","bundle_sha256":"58169ea85446aa2ae32d74403182d67fa24c54c920cabc16e555697648eb29fc"}}