{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:S7R4STCBJ6BXOEQSUODN4F36IV","short_pith_number":"pith:S7R4STCB","canonical_record":{"source":{"id":"1204.0990","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2012-04-04T16:28:17Z","cross_cats_sorted":["physics.optics"],"title_canon_sha256":"2ba25abde8e1e758a7d7a76784b247410bfff335bfb55f232a71bd893170df82","abstract_canon_sha256":"d667f23c8eb0db1b68e0e108eb0177939aeec3aa5883141853b23801e206b63f"},"schema_version":"1.0"},"canonical_sha256":"97e3c94c414f83771212a386de177e4545a4c98486a89a42a520ff2dc94671c8","source":{"kind":"arxiv","id":"1204.0990","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1204.0990","created_at":"2026-05-18T03:50:37Z"},{"alias_kind":"arxiv_version","alias_value":"1204.0990v2","created_at":"2026-05-18T03:50:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1204.0990","created_at":"2026-05-18T03:50:37Z"},{"alias_kind":"pith_short_12","alias_value":"S7R4STCBJ6BX","created_at":"2026-05-18T12:27:20Z"},{"alias_kind":"pith_short_16","alias_value":"S7R4STCBJ6BXOEQS","created_at":"2026-05-18T12:27:20Z"},{"alias_kind":"pith_short_8","alias_value":"S7R4STCB","created_at":"2026-05-18T12:27:20Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:S7R4STCBJ6BXOEQSUODN4F36IV","target":"record","payload":{"canonical_record":{"source":{"id":"1204.0990","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2012-04-04T16:28:17Z","cross_cats_sorted":["physics.optics"],"title_canon_sha256":"2ba25abde8e1e758a7d7a76784b247410bfff335bfb55f232a71bd893170df82","abstract_canon_sha256":"d667f23c8eb0db1b68e0e108eb0177939aeec3aa5883141853b23801e206b63f"},"schema_version":"1.0"},"canonical_sha256":"97e3c94c414f83771212a386de177e4545a4c98486a89a42a520ff2dc94671c8","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:50:37.218392Z","signature_b64":"065cX5fS3o4gEn9vAIvA5QIRej+jFHm/5jfEmR7DV4qQc+V+nJkEr8jYEv+vz+/bc3vnvV2GIWT4FGrGeWXYDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"97e3c94c414f83771212a386de177e4545a4c98486a89a42a520ff2dc94671c8","last_reissued_at":"2026-05-18T03:50:37.217732Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:50:37.217732Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1204.0990","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":"2026-05-18T03:50:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"IEkszuSy5GB0S3A9sC2GyjNhjsnxHB859p16Arcl266NJlriJ9t63LGhbpRc+KzmchSeipq427mwIDUcFZXvCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T03:04:23.110332Z"},"content_sha256":"c927ae2bc60bafeeaefdf147801143d4c5c2756f59996036bc937cfff4674b0b","schema_version":"1.0","event_id":"sha256:c927ae2bc60bafeeaefdf147801143d4c5c2756f59996036bc937cfff4674b0b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:S7R4STCBJ6BXOEQSUODN4F36IV","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Realization of the purely spatial Einstein-Podolsky-Rosen paradox in full-field images of spontaneous parametric down conversion","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.optics"],"primary_cat":"quant-ph","authors_text":"Eric Lantz, Fabrice Devaux, Jo\\'e Mougin-Sisini, Paul-Antoine Moreau","submitted_at":"2012-04-04T16:28:17Z","abstract_excerpt":"We demonstrate Einstein-Podolsky-Rosen (EPR) entanglement by detecting purely spatial quantum correlations in the near and far fields of spontaneous parametric down-conversion generated in a type-2 beta barium borate crystal. Full-field imaging is performed in the photon-counting regime with an electron-multiplying CCD camera. The data are used without any postselection, and we obtain a violation of Heisenberg inequalities with inferred quantities taking into account all the biphoton pairs in both the near and far fields by integration on the entire two-dimensional transverse planes. This ensu"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1204.0990","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":"2026-05-18T03:50:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rZedo12xBzDA0t1spFM6uu+p/iZjZxMHZrbmZQJVyFjchfYBz7OdxQIMKD72WOremgobSR0DQhfJc6VAQagICg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T03:04:23.110819Z"},"content_sha256":"302d149aef67943748031c72aa3ee893c584e6cb4aef9268331de441acc3a64e","schema_version":"1.0","event_id":"sha256:302d149aef67943748031c72aa3ee893c584e6cb4aef9268331de441acc3a64e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/S7R4STCBJ6BXOEQSUODN4F36IV/bundle.json","state_url":"https://pith.science/pith/S7R4STCBJ6BXOEQSUODN4F36IV/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/S7R4STCBJ6BXOEQSUODN4F36IV/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":"2026-05-25T03:04:23Z","links":{"resolver":"https://pith.science/pith/S7R4STCBJ6BXOEQSUODN4F36IV","bundle":"https://pith.science/pith/S7R4STCBJ6BXOEQSUODN4F36IV/bundle.json","state":"https://pith.science/pith/S7R4STCBJ6BXOEQSUODN4F36IV/state.json","well_known_bundle":"https://pith.science/.well-known/pith/S7R4STCBJ6BXOEQSUODN4F36IV/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:S7R4STCBJ6BXOEQSUODN4F36IV","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":"d667f23c8eb0db1b68e0e108eb0177939aeec3aa5883141853b23801e206b63f","cross_cats_sorted":["physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2012-04-04T16:28:17Z","title_canon_sha256":"2ba25abde8e1e758a7d7a76784b247410bfff335bfb55f232a71bd893170df82"},"schema_version":"1.0","source":{"id":"1204.0990","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1204.0990","created_at":"2026-05-18T03:50:37Z"},{"alias_kind":"arxiv_version","alias_value":"1204.0990v2","created_at":"2026-05-18T03:50:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1204.0990","created_at":"2026-05-18T03:50:37Z"},{"alias_kind":"pith_short_12","alias_value":"S7R4STCBJ6BX","created_at":"2026-05-18T12:27:20Z"},{"alias_kind":"pith_short_16","alias_value":"S7R4STCBJ6BXOEQS","created_at":"2026-05-18T12:27:20Z"},{"alias_kind":"pith_short_8","alias_value":"S7R4STCB","created_at":"2026-05-18T12:27:20Z"}],"graph_snapshots":[{"event_id":"sha256:302d149aef67943748031c72aa3ee893c584e6cb4aef9268331de441acc3a64e","target":"graph","created_at":"2026-05-18T03:50:37Z","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 Einstein-Podolsky-Rosen (EPR) entanglement by detecting purely spatial quantum correlations in the near and far fields of spontaneous parametric down-conversion generated in a type-2 beta barium borate crystal. Full-field imaging is performed in the photon-counting regime with an electron-multiplying CCD camera. The data are used without any postselection, and we obtain a violation of Heisenberg inequalities with inferred quantities taking into account all the biphoton pairs in both the near and far fields by integration on the entire two-dimensional transverse planes. This ensu","authors_text":"Eric Lantz, Fabrice Devaux, Jo\\'e Mougin-Sisini, Paul-Antoine Moreau","cross_cats":["physics.optics"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2012-04-04T16:28:17Z","title":"Realization of the purely spatial Einstein-Podolsky-Rosen paradox in full-field images of spontaneous parametric down conversion"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1204.0990","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:c927ae2bc60bafeeaefdf147801143d4c5c2756f59996036bc937cfff4674b0b","target":"record","created_at":"2026-05-18T03:50:37Z","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":"d667f23c8eb0db1b68e0e108eb0177939aeec3aa5883141853b23801e206b63f","cross_cats_sorted":["physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2012-04-04T16:28:17Z","title_canon_sha256":"2ba25abde8e1e758a7d7a76784b247410bfff335bfb55f232a71bd893170df82"},"schema_version":"1.0","source":{"id":"1204.0990","kind":"arxiv","version":2}},"canonical_sha256":"97e3c94c414f83771212a386de177e4545a4c98486a89a42a520ff2dc94671c8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"97e3c94c414f83771212a386de177e4545a4c98486a89a42a520ff2dc94671c8","first_computed_at":"2026-05-18T03:50:37.217732Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:50:37.217732Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"065cX5fS3o4gEn9vAIvA5QIRej+jFHm/5jfEmR7DV4qQc+V+nJkEr8jYEv+vz+/bc3vnvV2GIWT4FGrGeWXYDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T03:50:37.218392Z","signed_message":"canonical_sha256_bytes"},"source_id":"1204.0990","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c927ae2bc60bafeeaefdf147801143d4c5c2756f59996036bc937cfff4674b0b","sha256:302d149aef67943748031c72aa3ee893c584e6cb4aef9268331de441acc3a64e"],"state_sha256":"362002e5acc36e62afa35d2568e231407b66a5b6b982a8259def27bd657dacdc"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NXWI+IEAiaoJhE22zYSMCfv3QBfAX+UtabyadEtLOcjLDgJPznBLAOU9E/ZXhOh3SxBhOV3ayzg+ovNLZxdWBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T03:04:23.114668Z","bundle_sha256":"506143d4af5a8dcd4b1acb7c69cfecfe5f83bf88d1e71a6a2e497d82b507a893"}}