{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:R3SQ33F4O2YYT442OO2PLRWYCB","short_pith_number":"pith:R3SQ33F4","canonical_record":{"source":{"id":"1010.3911","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2010-10-19T13:54:41Z","cross_cats_sorted":["physics.optics"],"title_canon_sha256":"f5dedbe3cb00fc8ceb28510d43be515e38ffad0c1d22a04ad2a317b2e6457122","abstract_canon_sha256":"9a3f9e706edcc45c2b53784ffa5ab4f96c60e04210abc9dde2f79280da0db5e3"},"schema_version":"1.0"},"canonical_sha256":"8ee50decbc76b189f39a73b4f5c6d81049073941ac5cfc2e84691e0f93368add","source":{"kind":"arxiv","id":"1010.3911","version":4},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1010.3911","created_at":"2026-05-18T04:23:34Z"},{"alias_kind":"arxiv_version","alias_value":"1010.3911v4","created_at":"2026-05-18T04:23:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1010.3911","created_at":"2026-05-18T04:23:34Z"},{"alias_kind":"pith_short_12","alias_value":"R3SQ33F4O2YY","created_at":"2026-05-18T12:26:13Z"},{"alias_kind":"pith_short_16","alias_value":"R3SQ33F4O2YYT442","created_at":"2026-05-18T12:26:13Z"},{"alias_kind":"pith_short_8","alias_value":"R3SQ33F4","created_at":"2026-05-18T12:26:13Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:R3SQ33F4O2YYT442OO2PLRWYCB","target":"record","payload":{"canonical_record":{"source":{"id":"1010.3911","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2010-10-19T13:54:41Z","cross_cats_sorted":["physics.optics"],"title_canon_sha256":"f5dedbe3cb00fc8ceb28510d43be515e38ffad0c1d22a04ad2a317b2e6457122","abstract_canon_sha256":"9a3f9e706edcc45c2b53784ffa5ab4f96c60e04210abc9dde2f79280da0db5e3"},"schema_version":"1.0"},"canonical_sha256":"8ee50decbc76b189f39a73b4f5c6d81049073941ac5cfc2e84691e0f93368add","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:23:34.221360Z","signature_b64":"oma2m5oLnwM0Tg9DHENl1r/wQiPSPSZTGEUH8WuAAsRzX0oaY3rNzJXsVWy2S8AJSpCnhubD703UjWIr2l3wBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8ee50decbc76b189f39a73b4f5c6d81049073941ac5cfc2e84691e0f93368add","last_reissued_at":"2026-05-18T04:23:34.220890Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:23:34.220890Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1010.3911","source_version":4,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T04:23:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NyMIVxfpKf1YrpoeAVSQYJjJZ2+cWJNzIr9kcLjKufYjauPOsM6OJySybL+Mhrzkqx6bxLM1B0S6gkuAg7KTDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-20T19:01:59.090154Z"},"content_sha256":"b48d297eb5012202defb907af2ce4532198ea9ed378a625262a910a3fbe7fc1b","schema_version":"1.0","event_id":"sha256:b48d297eb5012202defb907af2ce4532198ea9ed378a625262a910a3fbe7fc1b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:R3SQ33F4O2YYT442OO2PLRWYCB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Entanglement of a Quantum Optical Elliptic Vortex","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.optics"],"primary_cat":"quant-ph","authors_text":"Abir Bandyopadhyay, Ravindra Pratap Singh, Shashi Prabhakar","submitted_at":"2010-10-19T13:54:41Z","abstract_excerpt":"We calculate the entanglement of a generalized elliptical vortex formed by quantized radiation field, using Wigner quasiprobability distribution function for such states. We find a critical squeezing parameter above which the entanglement is less for higher vorticity, which is counter intuitive."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1010.3911","kind":"arxiv","version":4},"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":"2026-05-18T04:23:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"sCUpFZFj3gTTwkTbVC9FkQuqTjwdeQeE7Qj9gaNReuMH4xRg3NDeLVVopjyFijigxzKW1ibZZe2q0KMLwvCLDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-20T19:01:59.090515Z"},"content_sha256":"961f145a3166e7572f55cf41b16432f4f00f19c6c0ac488732429316fabfcdf4","schema_version":"1.0","event_id":"sha256:961f145a3166e7572f55cf41b16432f4f00f19c6c0ac488732429316fabfcdf4"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/R3SQ33F4O2YYT442OO2PLRWYCB/bundle.json","state_url":"https://pith.science/pith/R3SQ33F4O2YYT442OO2PLRWYCB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/R3SQ33F4O2YYT442OO2PLRWYCB/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":"2026-06-20T19:01:59Z","links":{"resolver":"https://pith.science/pith/R3SQ33F4O2YYT442OO2PLRWYCB","bundle":"https://pith.science/pith/R3SQ33F4O2YYT442OO2PLRWYCB/bundle.json","state":"https://pith.science/pith/R3SQ33F4O2YYT442OO2PLRWYCB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/R3SQ33F4O2YYT442OO2PLRWYCB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:R3SQ33F4O2YYT442OO2PLRWYCB","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":"9a3f9e706edcc45c2b53784ffa5ab4f96c60e04210abc9dde2f79280da0db5e3","cross_cats_sorted":["physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2010-10-19T13:54:41Z","title_canon_sha256":"f5dedbe3cb00fc8ceb28510d43be515e38ffad0c1d22a04ad2a317b2e6457122"},"schema_version":"1.0","source":{"id":"1010.3911","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1010.3911","created_at":"2026-05-18T04:23:34Z"},{"alias_kind":"arxiv_version","alias_value":"1010.3911v4","created_at":"2026-05-18T04:23:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1010.3911","created_at":"2026-05-18T04:23:34Z"},{"alias_kind":"pith_short_12","alias_value":"R3SQ33F4O2YY","created_at":"2026-05-18T12:26:13Z"},{"alias_kind":"pith_short_16","alias_value":"R3SQ33F4O2YYT442","created_at":"2026-05-18T12:26:13Z"},{"alias_kind":"pith_short_8","alias_value":"R3SQ33F4","created_at":"2026-05-18T12:26:13Z"}],"graph_snapshots":[{"event_id":"sha256:961f145a3166e7572f55cf41b16432f4f00f19c6c0ac488732429316fabfcdf4","target":"graph","created_at":"2026-05-18T04:23:34Z","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 calculate the entanglement of a generalized elliptical vortex formed by quantized radiation field, using Wigner quasiprobability distribution function for such states. We find a critical squeezing parameter above which the entanglement is less for higher vorticity, which is counter intuitive.","authors_text":"Abir Bandyopadhyay, Ravindra Pratap Singh, Shashi Prabhakar","cross_cats":["physics.optics"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2010-10-19T13:54:41Z","title":"Entanglement of a Quantum Optical Elliptic Vortex"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1010.3911","kind":"arxiv","version":4},"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:b48d297eb5012202defb907af2ce4532198ea9ed378a625262a910a3fbe7fc1b","target":"record","created_at":"2026-05-18T04:23:34Z","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":"9a3f9e706edcc45c2b53784ffa5ab4f96c60e04210abc9dde2f79280da0db5e3","cross_cats_sorted":["physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2010-10-19T13:54:41Z","title_canon_sha256":"f5dedbe3cb00fc8ceb28510d43be515e38ffad0c1d22a04ad2a317b2e6457122"},"schema_version":"1.0","source":{"id":"1010.3911","kind":"arxiv","version":4}},"canonical_sha256":"8ee50decbc76b189f39a73b4f5c6d81049073941ac5cfc2e84691e0f93368add","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8ee50decbc76b189f39a73b4f5c6d81049073941ac5cfc2e84691e0f93368add","first_computed_at":"2026-05-18T04:23:34.220890Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:23:34.220890Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"oma2m5oLnwM0Tg9DHENl1r/wQiPSPSZTGEUH8WuAAsRzX0oaY3rNzJXsVWy2S8AJSpCnhubD703UjWIr2l3wBA==","signature_status":"signed_v1","signed_at":"2026-05-18T04:23:34.221360Z","signed_message":"canonical_sha256_bytes"},"source_id":"1010.3911","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b48d297eb5012202defb907af2ce4532198ea9ed378a625262a910a3fbe7fc1b","sha256:961f145a3166e7572f55cf41b16432f4f00f19c6c0ac488732429316fabfcdf4"],"state_sha256":"9bcba57bbbde35bf2f6de073c78e98bf6de8da466f6f25dabd765e212ac47a55"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uQV/cPjAwfnKby3hPh9mOb/RV3Hsow5SrEclTzTeMEWFGdYlFmuM6JEUFeboaVUL5L9L5cqMVRvTuLbOpn0aAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-20T19:01:59.092375Z","bundle_sha256":"f6504c783513f5f83334789e9f9c1b67d506b5c68752251b16dba62ae456ec73"}}