{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2009:47NRLUMGKNDYVIOZAZTZYZMJ2O","short_pith_number":"pith:47NRLUMG","canonical_record":{"source":{"id":"0902.3713","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2009-02-21T15:19:32Z","cross_cats_sorted":[],"title_canon_sha256":"45927aed90ba25bf003d9667529c6e9d45adfee5d1b859e7a64cbc4183226604","abstract_canon_sha256":"1e73c531be81db2c32b07aa9ba5bf4a7f8d5e54963a24ec21c14048e8cf86e9b"},"schema_version":"1.0"},"canonical_sha256":"e7db15d18653478aa1d906679c6589d3b37c35aac5841f8990e07f66e608a1c6","source":{"kind":"arxiv","id":"0902.3713","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0902.3713","created_at":"2026-05-18T02:14:46Z"},{"alias_kind":"arxiv_version","alias_value":"0902.3713v3","created_at":"2026-05-18T02:14:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0902.3713","created_at":"2026-05-18T02:14:46Z"},{"alias_kind":"pith_short_12","alias_value":"47NRLUMGKNDY","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_16","alias_value":"47NRLUMGKNDYVIOZ","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_8","alias_value":"47NRLUMG","created_at":"2026-05-18T12:25:58Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2009:47NRLUMGKNDYVIOZAZTZYZMJ2O","target":"record","payload":{"canonical_record":{"source":{"id":"0902.3713","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2009-02-21T15:19:32Z","cross_cats_sorted":[],"title_canon_sha256":"45927aed90ba25bf003d9667529c6e9d45adfee5d1b859e7a64cbc4183226604","abstract_canon_sha256":"1e73c531be81db2c32b07aa9ba5bf4a7f8d5e54963a24ec21c14048e8cf86e9b"},"schema_version":"1.0"},"canonical_sha256":"e7db15d18653478aa1d906679c6589d3b37c35aac5841f8990e07f66e608a1c6","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:14:46.574479Z","signature_b64":"N0MANkdzpHzwmcOD/kSaodvwxoKQQg/N7/E15ETCTJJcl8PC0Pt7/Q/pS/axRV9mV/1TgiL4TMipjIZ1nXKeAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e7db15d18653478aa1d906679c6589d3b37c35aac5841f8990e07f66e608a1c6","last_reissued_at":"2026-05-18T02:14:46.573786Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:14:46.573786Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0902.3713","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:14:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Ru3hmeGSrp2Co1DPaiAguOHtIsDrRAwaa+KsZCEpSbRWQbx0vvobTKoBQWhNPkzJ1TGmM3dMckt/KMgxkNtwCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T15:39:09.630988Z"},"content_sha256":"0e540562bc36aad3c031765050e973bd5082cf975fdb6945bde2ce0a1baf4109","schema_version":"1.0","event_id":"sha256:0e540562bc36aad3c031765050e973bd5082cf975fdb6945bde2ce0a1baf4109"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2009:47NRLUMGKNDYVIOZAZTZYZMJ2O","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Arbitrary-order lensless ghost imaging with thermal light","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Ivan N. Agafonov, Kai-Hong Luo, Ling-An Wu, Maria V. Chekhova, Qian Liu, Rui Xian, Xi-Hao Chen","submitted_at":"2009-02-21T15:19:32Z","abstract_excerpt":"Arbitrary Nth-order ($N\\geq2$) lensless ghost imaging with thermal light has been performed for the first time by only recording the intensities in two optical paths. It is shown that the image visibility can be dramatically enhanced as the order N increases. It is also found that longer integration times are required for higher-order correlation measurements as N increases, due to the increased fluctuations of higher-order intensity correlation functions."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0902.3713","kind":"arxiv","version":3},"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":"2026-05-18T02:14:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UlEDzAFngOO2mZBlf0dMiknva90RuwPj8XAE8fBNinNv93xp9Bg1z5R47I0EZgVo5Ww+7JR8IOcrf+tT9yaXAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T15:39:09.631691Z"},"content_sha256":"00933afb90cd108877e2a6b71ee3228f4b6a3be93a8a41bde1b26e678917fff0","schema_version":"1.0","event_id":"sha256:00933afb90cd108877e2a6b71ee3228f4b6a3be93a8a41bde1b26e678917fff0"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/47NRLUMGKNDYVIOZAZTZYZMJ2O/bundle.json","state_url":"https://pith.science/pith/47NRLUMGKNDYVIOZAZTZYZMJ2O/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/47NRLUMGKNDYVIOZAZTZYZMJ2O/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":"2026-06-06T15:39:09Z","links":{"resolver":"https://pith.science/pith/47NRLUMGKNDYVIOZAZTZYZMJ2O","bundle":"https://pith.science/pith/47NRLUMGKNDYVIOZAZTZYZMJ2O/bundle.json","state":"https://pith.science/pith/47NRLUMGKNDYVIOZAZTZYZMJ2O/state.json","well_known_bundle":"https://pith.science/.well-known/pith/47NRLUMGKNDYVIOZAZTZYZMJ2O/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:47NRLUMGKNDYVIOZAZTZYZMJ2O","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":"1e73c531be81db2c32b07aa9ba5bf4a7f8d5e54963a24ec21c14048e8cf86e9b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2009-02-21T15:19:32Z","title_canon_sha256":"45927aed90ba25bf003d9667529c6e9d45adfee5d1b859e7a64cbc4183226604"},"schema_version":"1.0","source":{"id":"0902.3713","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0902.3713","created_at":"2026-05-18T02:14:46Z"},{"alias_kind":"arxiv_version","alias_value":"0902.3713v3","created_at":"2026-05-18T02:14:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0902.3713","created_at":"2026-05-18T02:14:46Z"},{"alias_kind":"pith_short_12","alias_value":"47NRLUMGKNDY","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_16","alias_value":"47NRLUMGKNDYVIOZ","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_8","alias_value":"47NRLUMG","created_at":"2026-05-18T12:25:58Z"}],"graph_snapshots":[{"event_id":"sha256:00933afb90cd108877e2a6b71ee3228f4b6a3be93a8a41bde1b26e678917fff0","target":"graph","created_at":"2026-05-18T02:14:46Z","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":"Arbitrary Nth-order ($N\\geq2$) lensless ghost imaging with thermal light has been performed for the first time by only recording the intensities in two optical paths. It is shown that the image visibility can be dramatically enhanced as the order N increases. It is also found that longer integration times are required for higher-order correlation measurements as N increases, due to the increased fluctuations of higher-order intensity correlation functions.","authors_text":"Ivan N. Agafonov, Kai-Hong Luo, Ling-An Wu, Maria V. Chekhova, Qian Liu, Rui Xian, Xi-Hao Chen","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2009-02-21T15:19:32Z","title":"Arbitrary-order lensless ghost imaging with thermal light"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0902.3713","kind":"arxiv","version":3},"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":"sha256:0e540562bc36aad3c031765050e973bd5082cf975fdb6945bde2ce0a1baf4109","target":"record","created_at":"2026-05-18T02:14:46Z","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":"1e73c531be81db2c32b07aa9ba5bf4a7f8d5e54963a24ec21c14048e8cf86e9b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2009-02-21T15:19:32Z","title_canon_sha256":"45927aed90ba25bf003d9667529c6e9d45adfee5d1b859e7a64cbc4183226604"},"schema_version":"1.0","source":{"id":"0902.3713","kind":"arxiv","version":3}},"canonical_sha256":"e7db15d18653478aa1d906679c6589d3b37c35aac5841f8990e07f66e608a1c6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e7db15d18653478aa1d906679c6589d3b37c35aac5841f8990e07f66e608a1c6","first_computed_at":"2026-05-18T02:14:46.573786Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:14:46.573786Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"N0MANkdzpHzwmcOD/kSaodvwxoKQQg/N7/E15ETCTJJcl8PC0Pt7/Q/pS/axRV9mV/1TgiL4TMipjIZ1nXKeAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:14:46.574479Z","signed_message":"canonical_sha256_bytes"},"source_id":"0902.3713","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0e540562bc36aad3c031765050e973bd5082cf975fdb6945bde2ce0a1baf4109","sha256:00933afb90cd108877e2a6b71ee3228f4b6a3be93a8a41bde1b26e678917fff0"],"state_sha256":"d2d1c63bb84a633c9880f904af9262ebca09ddafeaad78857e69008db7f4fbc9"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RAxc6qFtj3hoYOrQw3nYH7eXlg1407ek+BTGndAKC3M9ld3dKv1DicT7gc0ACcj+/NY/3X5En0n0LREnPBmSBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-06T15:39:09.634765Z","bundle_sha256":"fe71babd9af7b6334b64245205e2d1199700b78c1c6803b9acbb370d4798f866"}}