{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2001:NEJEQFZ2TXT2VKWXXHI2YLMTX3","short_pith_number":"pith:NEJEQFZ2","canonical_record":{"source":{"id":"quant-ph/0111054","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"quant-ph","submitted_at":"2001-11-08T18:52:38Z","cross_cats_sorted":[],"title_canon_sha256":"55211b7bac18870aa80fbb7eb8519e6503c9f8aa6c623b524416d32be96f9dec","abstract_canon_sha256":"8e2b6815fefc5ef0fc8d2d69df01a8b48c0a2b6cdaf6399f7700be765ae72b3e"},"schema_version":"1.0"},"canonical_sha256":"691248173a9de7aaaad7b9d1ac2d93bee9c97304b424565cc935e2654906e926","source":{"kind":"arxiv","id":"quant-ph/0111054","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"quant-ph/0111054","created_at":"2026-05-18T01:38:02Z"},{"alias_kind":"arxiv_version","alias_value":"quant-ph/0111054v1","created_at":"2026-05-18T01:38:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.quant-ph/0111054","created_at":"2026-05-18T01:38:02Z"},{"alias_kind":"pith_short_12","alias_value":"NEJEQFZ2TXT2","created_at":"2026-05-18T12:25:50Z"},{"alias_kind":"pith_short_16","alias_value":"NEJEQFZ2TXT2VKWX","created_at":"2026-05-18T12:25:50Z"},{"alias_kind":"pith_short_8","alias_value":"NEJEQFZ2","created_at":"2026-05-18T12:25:50Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2001:NEJEQFZ2TXT2VKWXXHI2YLMTX3","target":"record","payload":{"canonical_record":{"source":{"id":"quant-ph/0111054","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"quant-ph","submitted_at":"2001-11-08T18:52:38Z","cross_cats_sorted":[],"title_canon_sha256":"55211b7bac18870aa80fbb7eb8519e6503c9f8aa6c623b524416d32be96f9dec","abstract_canon_sha256":"8e2b6815fefc5ef0fc8d2d69df01a8b48c0a2b6cdaf6399f7700be765ae72b3e"},"schema_version":"1.0"},"canonical_sha256":"691248173a9de7aaaad7b9d1ac2d93bee9c97304b424565cc935e2654906e926","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:38:02.368477Z","signature_b64":"5YY172/Rs6qpjZZzTer2NfFrue7NIz1fxPpxn2EuyovhRxiA9pCkd4E/oJwktqWJWcA6Tgl2TmwDKlpBFRUtBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"691248173a9de7aaaad7b9d1ac2d93bee9c97304b424565cc935e2654906e926","last_reissued_at":"2026-05-18T01:38:02.367865Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:38:02.367865Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"quant-ph/0111054","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":"2026-05-18T01:38:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RBDSW/fP/IVtm1F7fuO/i2vUK2rQXD24I3YDOd2YfMZtVMazpIhUzUb9qJOwrJ1R5Hi+wpP/ss1Oecc9IiyyBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T18:23:33.268829Z"},"content_sha256":"6872a632157fa7291faf124d1e4349288a0313b58cc03a464584abcf41b2d878","schema_version":"1.0","event_id":"sha256:6872a632157fa7291faf124d1e4349288a0313b58cc03a464584abcf41b2d878"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2001:NEJEQFZ2TXT2VKWXXHI2YLMTX3","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Entangled-photon Fourier optics","license":"","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Alexander V. Sergienko, Ayman F. Abouraddy, Bahaa E. A. Saleh, Malvin C. Teich","submitted_at":"2001-11-08T18:52:38Z","abstract_excerpt":"Entangled photons, generated by spontaneous parametric down-conversion from a second-order nonlinear crystal, present a rich potential for imaging and image-processing applications. Since this source is an example of a three-wave mixing process, there is more flexibility in the choices of illumination and detection wavelengths and in the placement of object(s) to be imaged. Moreover, this source is entangled, a fact that allows for imaging configurations and capabilities that cannot be achieved using classical sources of light. In this paper we examine a number of imaging and image-processing "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"quant-ph/0111054","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":"2026-05-18T01:38:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8PWbMO+XY6d28rGIOk0A8z2dCzTp69zxBhw4YqdWLx1jfzQmgdY5UzgzkCpVgvstCwSJx2aIlY0oJyYBBzJYDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T18:23:33.269382Z"},"content_sha256":"30f20b3164fe968657d3beac38686181947aaae77d7e7b580d57c7c03b84dc67","schema_version":"1.0","event_id":"sha256:30f20b3164fe968657d3beac38686181947aaae77d7e7b580d57c7c03b84dc67"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/NEJEQFZ2TXT2VKWXXHI2YLMTX3/bundle.json","state_url":"https://pith.science/pith/NEJEQFZ2TXT2VKWXXHI2YLMTX3/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/NEJEQFZ2TXT2VKWXXHI2YLMTX3/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":"2026-05-30T18:23:33Z","links":{"resolver":"https://pith.science/pith/NEJEQFZ2TXT2VKWXXHI2YLMTX3","bundle":"https://pith.science/pith/NEJEQFZ2TXT2VKWXXHI2YLMTX3/bundle.json","state":"https://pith.science/pith/NEJEQFZ2TXT2VKWXXHI2YLMTX3/state.json","well_known_bundle":"https://pith.science/.well-known/pith/NEJEQFZ2TXT2VKWXXHI2YLMTX3/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2001:NEJEQFZ2TXT2VKWXXHI2YLMTX3","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":"8e2b6815fefc5ef0fc8d2d69df01a8b48c0a2b6cdaf6399f7700be765ae72b3e","cross_cats_sorted":[],"license":"","primary_cat":"quant-ph","submitted_at":"2001-11-08T18:52:38Z","title_canon_sha256":"55211b7bac18870aa80fbb7eb8519e6503c9f8aa6c623b524416d32be96f9dec"},"schema_version":"1.0","source":{"id":"quant-ph/0111054","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"quant-ph/0111054","created_at":"2026-05-18T01:38:02Z"},{"alias_kind":"arxiv_version","alias_value":"quant-ph/0111054v1","created_at":"2026-05-18T01:38:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.quant-ph/0111054","created_at":"2026-05-18T01:38:02Z"},{"alias_kind":"pith_short_12","alias_value":"NEJEQFZ2TXT2","created_at":"2026-05-18T12:25:50Z"},{"alias_kind":"pith_short_16","alias_value":"NEJEQFZ2TXT2VKWX","created_at":"2026-05-18T12:25:50Z"},{"alias_kind":"pith_short_8","alias_value":"NEJEQFZ2","created_at":"2026-05-18T12:25:50Z"}],"graph_snapshots":[{"event_id":"sha256:30f20b3164fe968657d3beac38686181947aaae77d7e7b580d57c7c03b84dc67","target":"graph","created_at":"2026-05-18T01:38:02Z","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":"Entangled photons, generated by spontaneous parametric down-conversion from a second-order nonlinear crystal, present a rich potential for imaging and image-processing applications. Since this source is an example of a three-wave mixing process, there is more flexibility in the choices of illumination and detection wavelengths and in the placement of object(s) to be imaged. Moreover, this source is entangled, a fact that allows for imaging configurations and capabilities that cannot be achieved using classical sources of light. In this paper we examine a number of imaging and image-processing ","authors_text":"Alexander V. Sergienko, Ayman F. Abouraddy, Bahaa E. A. Saleh, Malvin C. Teich","cross_cats":[],"headline":"","license":"","primary_cat":"quant-ph","submitted_at":"2001-11-08T18:52:38Z","title":"Entangled-photon Fourier optics"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"quant-ph/0111054","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":"sha256:6872a632157fa7291faf124d1e4349288a0313b58cc03a464584abcf41b2d878","target":"record","created_at":"2026-05-18T01:38:02Z","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":"8e2b6815fefc5ef0fc8d2d69df01a8b48c0a2b6cdaf6399f7700be765ae72b3e","cross_cats_sorted":[],"license":"","primary_cat":"quant-ph","submitted_at":"2001-11-08T18:52:38Z","title_canon_sha256":"55211b7bac18870aa80fbb7eb8519e6503c9f8aa6c623b524416d32be96f9dec"},"schema_version":"1.0","source":{"id":"quant-ph/0111054","kind":"arxiv","version":1}},"canonical_sha256":"691248173a9de7aaaad7b9d1ac2d93bee9c97304b424565cc935e2654906e926","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"691248173a9de7aaaad7b9d1ac2d93bee9c97304b424565cc935e2654906e926","first_computed_at":"2026-05-18T01:38:02.367865Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:38:02.367865Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"5YY172/Rs6qpjZZzTer2NfFrue7NIz1fxPpxn2EuyovhRxiA9pCkd4E/oJwktqWJWcA6Tgl2TmwDKlpBFRUtBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:38:02.368477Z","signed_message":"canonical_sha256_bytes"},"source_id":"quant-ph/0111054","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6872a632157fa7291faf124d1e4349288a0313b58cc03a464584abcf41b2d878","sha256:30f20b3164fe968657d3beac38686181947aaae77d7e7b580d57c7c03b84dc67"],"state_sha256":"f4980fe85aa1c3888e0e118e45534b4c1dc2ccadc7b4698688476ba529f1e208"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"d23lpEwcc8Q6DXcJlKkyU53WmWkzHuQr38iACmcduu8kZWKrbhG4U8UISsXl0H4ZnlYMUQk5KK9vdB294LiVBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T18:23:33.272334Z","bundle_sha256":"ad3fda3aadc0c9c41c5db71fc89c4a038fa7338325d793da52e92304e2739107"}}