{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:AAT2NQZTZKMTLTEZG5GUI3ISUZ","short_pith_number":"pith:AAT2NQZT","canonical_record":{"source":{"id":"1307.2981","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2013-07-11T05:47:49Z","cross_cats_sorted":[],"title_canon_sha256":"523070844f5cd3dda714551d339cc9ee9b056ab09e7d476997a9bae7afd7e021","abstract_canon_sha256":"85b84ec971dd2f863e93023a9841b0dfe990833f15716271362dd57d518a4191"},"schema_version":"1.0"},"canonical_sha256":"0027a6c333ca9935cc99374d446d12a67642a8701b893db7e41a1b4e1cf76656","source":{"kind":"arxiv","id":"1307.2981","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1307.2981","created_at":"2026-05-18T03:09:48Z"},{"alias_kind":"arxiv_version","alias_value":"1307.2981v2","created_at":"2026-05-18T03:09:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1307.2981","created_at":"2026-05-18T03:09:48Z"},{"alias_kind":"pith_short_12","alias_value":"AAT2NQZTZKMT","created_at":"2026-05-18T12:27:38Z"},{"alias_kind":"pith_short_16","alias_value":"AAT2NQZTZKMTLTEZ","created_at":"2026-05-18T12:27:38Z"},{"alias_kind":"pith_short_8","alias_value":"AAT2NQZT","created_at":"2026-05-18T12:27:38Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:AAT2NQZTZKMTLTEZG5GUI3ISUZ","target":"record","payload":{"canonical_record":{"source":{"id":"1307.2981","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2013-07-11T05:47:49Z","cross_cats_sorted":[],"title_canon_sha256":"523070844f5cd3dda714551d339cc9ee9b056ab09e7d476997a9bae7afd7e021","abstract_canon_sha256":"85b84ec971dd2f863e93023a9841b0dfe990833f15716271362dd57d518a4191"},"schema_version":"1.0"},"canonical_sha256":"0027a6c333ca9935cc99374d446d12a67642a8701b893db7e41a1b4e1cf76656","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:09:48.009252Z","signature_b64":"Zaq+MHzYnYHgwlKTYoUkwT0kn5xxgRnebU46aM99IexKYO7hDlAnmpi4zSnU+4YRF1MbFAWfFunSDix9AlYABg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0027a6c333ca9935cc99374d446d12a67642a8701b893db7e41a1b4e1cf76656","last_reissued_at":"2026-05-18T03:09:48.008399Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:09:48.008399Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1307.2981","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":"2026-05-18T03:09:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qTvyvs5b9SIqMmcCX2d3JSWldMMQw+BvL2ah6qiQqhxXW0W5ElSzPRn3e80incZQhXoqWHkM/DTVPjGIFbziCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T20:45:14.878795Z"},"content_sha256":"6a416466c1b860b36e7eb411f79e50dfd76c87b9ad5204996a67a5e0442096ee","schema_version":"1.0","event_id":"sha256:6a416466c1b860b36e7eb411f79e50dfd76c87b9ad5204996a67a5e0442096ee"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:AAT2NQZTZKMTLTEZG5GUI3ISUZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Nonlocal continuous variable correlations and violation of Bell's inequality for light beams with topological singularities","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"A. S. Majumdar, G. S. Agarwal, Priyanka Chowdhury","submitted_at":"2013-07-11T05:47:49Z","abstract_excerpt":"We consider optical beams with topological singularities which possess Schmidt decomposition and show that such classical beams share many features of two mode entanglement in quantum optics. We demonstrate the coherence properties of such beams through the violations of Bell inequality for continuous variables using the Wigner function. This violation is a consequence of correlations between the $(x, p_x)$ and $(y, p_y)$ spaces which mathematically play the same role as nonlocality in quantum mechanics. The Bell violation for the LG beams is shown to increase with higher orbital angular momen"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1307.2981","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":"2026-05-18T03:09:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Tq/feHF7wf0hH3Fp03+97dXAb60Y65dP5CcNMvE/44PF7nDw5VOJKJxg2EHb95Jeeqiq6SCEzvOmM4mcm+FyDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T20:45:14.879146Z"},"content_sha256":"1438441f01b7777c52e015e5ceb7265ed58aa3cade5f015b0fdbe5821ba1ed8d","schema_version":"1.0","event_id":"sha256:1438441f01b7777c52e015e5ceb7265ed58aa3cade5f015b0fdbe5821ba1ed8d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/AAT2NQZTZKMTLTEZG5GUI3ISUZ/bundle.json","state_url":"https://pith.science/pith/AAT2NQZTZKMTLTEZG5GUI3ISUZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/AAT2NQZTZKMTLTEZG5GUI3ISUZ/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":"2026-05-27T20:45:14Z","links":{"resolver":"https://pith.science/pith/AAT2NQZTZKMTLTEZG5GUI3ISUZ","bundle":"https://pith.science/pith/AAT2NQZTZKMTLTEZG5GUI3ISUZ/bundle.json","state":"https://pith.science/pith/AAT2NQZTZKMTLTEZG5GUI3ISUZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/AAT2NQZTZKMTLTEZG5GUI3ISUZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:AAT2NQZTZKMTLTEZG5GUI3ISUZ","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":"85b84ec971dd2f863e93023a9841b0dfe990833f15716271362dd57d518a4191","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2013-07-11T05:47:49Z","title_canon_sha256":"523070844f5cd3dda714551d339cc9ee9b056ab09e7d476997a9bae7afd7e021"},"schema_version":"1.0","source":{"id":"1307.2981","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1307.2981","created_at":"2026-05-18T03:09:48Z"},{"alias_kind":"arxiv_version","alias_value":"1307.2981v2","created_at":"2026-05-18T03:09:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1307.2981","created_at":"2026-05-18T03:09:48Z"},{"alias_kind":"pith_short_12","alias_value":"AAT2NQZTZKMT","created_at":"2026-05-18T12:27:38Z"},{"alias_kind":"pith_short_16","alias_value":"AAT2NQZTZKMTLTEZ","created_at":"2026-05-18T12:27:38Z"},{"alias_kind":"pith_short_8","alias_value":"AAT2NQZT","created_at":"2026-05-18T12:27:38Z"}],"graph_snapshots":[{"event_id":"sha256:1438441f01b7777c52e015e5ceb7265ed58aa3cade5f015b0fdbe5821ba1ed8d","target":"graph","created_at":"2026-05-18T03:09:48Z","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 consider optical beams with topological singularities which possess Schmidt decomposition and show that such classical beams share many features of two mode entanglement in quantum optics. We demonstrate the coherence properties of such beams through the violations of Bell inequality for continuous variables using the Wigner function. This violation is a consequence of correlations between the $(x, p_x)$ and $(y, p_y)$ spaces which mathematically play the same role as nonlocality in quantum mechanics. The Bell violation for the LG beams is shown to increase with higher orbital angular momen","authors_text":"A. S. Majumdar, G. S. Agarwal, Priyanka Chowdhury","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2013-07-11T05:47:49Z","title":"Nonlocal continuous variable correlations and violation of Bell's inequality for light beams with topological singularities"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1307.2981","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":"sha256:6a416466c1b860b36e7eb411f79e50dfd76c87b9ad5204996a67a5e0442096ee","target":"record","created_at":"2026-05-18T03:09:48Z","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":"85b84ec971dd2f863e93023a9841b0dfe990833f15716271362dd57d518a4191","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2013-07-11T05:47:49Z","title_canon_sha256":"523070844f5cd3dda714551d339cc9ee9b056ab09e7d476997a9bae7afd7e021"},"schema_version":"1.0","source":{"id":"1307.2981","kind":"arxiv","version":2}},"canonical_sha256":"0027a6c333ca9935cc99374d446d12a67642a8701b893db7e41a1b4e1cf76656","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0027a6c333ca9935cc99374d446d12a67642a8701b893db7e41a1b4e1cf76656","first_computed_at":"2026-05-18T03:09:48.008399Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:09:48.008399Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Zaq+MHzYnYHgwlKTYoUkwT0kn5xxgRnebU46aM99IexKYO7hDlAnmpi4zSnU+4YRF1MbFAWfFunSDix9AlYABg==","signature_status":"signed_v1","signed_at":"2026-05-18T03:09:48.009252Z","signed_message":"canonical_sha256_bytes"},"source_id":"1307.2981","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6a416466c1b860b36e7eb411f79e50dfd76c87b9ad5204996a67a5e0442096ee","sha256:1438441f01b7777c52e015e5ceb7265ed58aa3cade5f015b0fdbe5821ba1ed8d"],"state_sha256":"708bd4015a62dd978131a99228cc8df4990c930d33bce17884eb521692e08f30"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wXHO+BNgpu/ngab8JGdRhgCbtB8x9wO5jJXExVmDkQkWppwj0L+J8HZQxtOxshJ3N6T/UmRaytmJ3SHnspYWAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T20:45:14.881215Z","bundle_sha256":"a3de7a34577159a5439ca927e3e6c99dbe44ae13c2e5600c260431f3090fb1eb"}}