{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:5QERW5HOH2JLBY6AV2ZW355TPZ","short_pith_number":"pith:5QERW5HO","canonical_record":{"source":{"id":"2012.03940","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2020-12-06T19:06:37Z","cross_cats_sorted":[],"title_canon_sha256":"dc80e7f53c94e844a8a13b3148286cdd8db11c0fae34e067ec9aac630ee2b18d","abstract_canon_sha256":"d6b373be4a325154a01edc737bc564d7d514ef1ca17c0f5a0583efbc4c16966d"},"schema_version":"1.0"},"canonical_sha256":"ec091b74ee3e92b0e3c0aeb36df7b37e7b12c1834b6cffeb5601837033deceb6","source":{"kind":"arxiv","id":"2012.03940","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2012.03940","created_at":"2026-07-05T03:31:23Z"},{"alias_kind":"arxiv_version","alias_value":"2012.03940v3","created_at":"2026-07-05T03:31:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2012.03940","created_at":"2026-07-05T03:31:23Z"},{"alias_kind":"pith_short_12","alias_value":"5QERW5HOH2JL","created_at":"2026-07-05T03:31:23Z"},{"alias_kind":"pith_short_16","alias_value":"5QERW5HOH2JLBY6A","created_at":"2026-07-05T03:31:23Z"},{"alias_kind":"pith_short_8","alias_value":"5QERW5HO","created_at":"2026-07-05T03:31:23Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:5QERW5HOH2JLBY6AV2ZW355TPZ","target":"record","payload":{"canonical_record":{"source":{"id":"2012.03940","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2020-12-06T19:06:37Z","cross_cats_sorted":[],"title_canon_sha256":"dc80e7f53c94e844a8a13b3148286cdd8db11c0fae34e067ec9aac630ee2b18d","abstract_canon_sha256":"d6b373be4a325154a01edc737bc564d7d514ef1ca17c0f5a0583efbc4c16966d"},"schema_version":"1.0"},"canonical_sha256":"ec091b74ee3e92b0e3c0aeb36df7b37e7b12c1834b6cffeb5601837033deceb6","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:31:23.700990Z","signature_b64":"WuKSf86uW38Xp+bfPCIgnRvT4P34gumt6OUSdrkHOq33r8UDdqVuYTrCrNb7k6LYYe2fHaCzrhvaCW/o5dhSBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ec091b74ee3e92b0e3c0aeb36df7b37e7b12c1834b6cffeb5601837033deceb6","last_reissued_at":"2026-07-05T03:31:23.700513Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:31:23.700513Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2012.03940","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":"2026-07-05T03:31:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bRqumzXnTtoFr2esRctsDx8oI94fO4bpZ7Ff3GqVPnGajMJsF+rSaFokvrWTVfAffgT1EJsg9N9m1kyHAsz1Dw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-17T02:51:45.119915Z"},"content_sha256":"1677eccdee71a2a237e5014bb0a73aa1ba47025de859d12897220de45c6f7312","schema_version":"1.0","event_id":"sha256:1677eccdee71a2a237e5014bb0a73aa1ba47025de859d12897220de45c6f7312"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:5QERW5HOH2JLBY6AV2ZW355TPZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Experimental Violation of the Leggett-Garg Inequality Using the Polarization of Classical Light","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Denys I. Bondar, Jacob M. Leamer, Ravi K. Saripalli, Ryan T. Glasser, Wenlei Zhang","submitted_at":"2020-12-06T19:06:37Z","abstract_excerpt":"In contrast to Bell's inequalities which test the correlations between multiple spatially separated systems, the Leggett-Garg inequalities test the temporal correlations between measurements of a single system. We experimentally demonstrate the violation of the Leggett-Garg inequality in a classical optical system using only the polarization degree-of-freedom of a laser beam. Our results show maximal violations of the Leggett-Garg inequality."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2012.03940","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2012.03940/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T03:31:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TpRQqfXn6WYVP2dph/mfjr/d4TufVyeMVZ8QZ7LZ00WfaY3cVoJvNRBBonaiVzYCwvEoo6X/EDbWItWKcqAhAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-17T02:51:45.120694Z"},"content_sha256":"b3ac670c6af30e5bbacc26e3892adfa78f7432def9636b2931c82636b7cf7aef","schema_version":"1.0","event_id":"sha256:b3ac670c6af30e5bbacc26e3892adfa78f7432def9636b2931c82636b7cf7aef"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/5QERW5HOH2JLBY6AV2ZW355TPZ/bundle.json","state_url":"https://pith.science/pith/5QERW5HOH2JLBY6AV2ZW355TPZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/5QERW5HOH2JLBY6AV2ZW355TPZ/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":"2026-08-17T02:51:45Z","links":{"resolver":"https://pith.science/pith/5QERW5HOH2JLBY6AV2ZW355TPZ","bundle":"https://pith.science/pith/5QERW5HOH2JLBY6AV2ZW355TPZ/bundle.json","state":"https://pith.science/pith/5QERW5HOH2JLBY6AV2ZW355TPZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/5QERW5HOH2JLBY6AV2ZW355TPZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:5QERW5HOH2JLBY6AV2ZW355TPZ","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":"d6b373be4a325154a01edc737bc564d7d514ef1ca17c0f5a0583efbc4c16966d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2020-12-06T19:06:37Z","title_canon_sha256":"dc80e7f53c94e844a8a13b3148286cdd8db11c0fae34e067ec9aac630ee2b18d"},"schema_version":"1.0","source":{"id":"2012.03940","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2012.03940","created_at":"2026-07-05T03:31:23Z"},{"alias_kind":"arxiv_version","alias_value":"2012.03940v3","created_at":"2026-07-05T03:31:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2012.03940","created_at":"2026-07-05T03:31:23Z"},{"alias_kind":"pith_short_12","alias_value":"5QERW5HOH2JL","created_at":"2026-07-05T03:31:23Z"},{"alias_kind":"pith_short_16","alias_value":"5QERW5HOH2JLBY6A","created_at":"2026-07-05T03:31:23Z"},{"alias_kind":"pith_short_8","alias_value":"5QERW5HO","created_at":"2026-07-05T03:31:23Z"}],"graph_snapshots":[{"event_id":"sha256:b3ac670c6af30e5bbacc26e3892adfa78f7432def9636b2931c82636b7cf7aef","target":"graph","created_at":"2026-07-05T03:31:23Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2012.03940/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In contrast to Bell's inequalities which test the correlations between multiple spatially separated systems, the Leggett-Garg inequalities test the temporal correlations between measurements of a single system. We experimentally demonstrate the violation of the Leggett-Garg inequality in a classical optical system using only the polarization degree-of-freedom of a laser beam. Our results show maximal violations of the Leggett-Garg inequality.","authors_text":"Denys I. Bondar, Jacob M. Leamer, Ravi K. Saripalli, Ryan T. Glasser, Wenlei Zhang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2020-12-06T19:06:37Z","title":"Experimental Violation of the Leggett-Garg Inequality Using the Polarization of Classical Light"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2012.03940","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":"sha256:1677eccdee71a2a237e5014bb0a73aa1ba47025de859d12897220de45c6f7312","target":"record","created_at":"2026-07-05T03:31:23Z","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":"d6b373be4a325154a01edc737bc564d7d514ef1ca17c0f5a0583efbc4c16966d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2020-12-06T19:06:37Z","title_canon_sha256":"dc80e7f53c94e844a8a13b3148286cdd8db11c0fae34e067ec9aac630ee2b18d"},"schema_version":"1.0","source":{"id":"2012.03940","kind":"arxiv","version":3}},"canonical_sha256":"ec091b74ee3e92b0e3c0aeb36df7b37e7b12c1834b6cffeb5601837033deceb6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ec091b74ee3e92b0e3c0aeb36df7b37e7b12c1834b6cffeb5601837033deceb6","first_computed_at":"2026-07-05T03:31:23.700513Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:31:23.700513Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"WuKSf86uW38Xp+bfPCIgnRvT4P34gumt6OUSdrkHOq33r8UDdqVuYTrCrNb7k6LYYe2fHaCzrhvaCW/o5dhSBQ==","signature_status":"signed_v1","signed_at":"2026-07-05T03:31:23.700990Z","signed_message":"canonical_sha256_bytes"},"source_id":"2012.03940","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1677eccdee71a2a237e5014bb0a73aa1ba47025de859d12897220de45c6f7312","sha256:b3ac670c6af30e5bbacc26e3892adfa78f7432def9636b2931c82636b7cf7aef"],"state_sha256":"bf747894a5a778d27f1ffc3a01e416044e4bf4d08aad5c84cee68f226513e01c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pF9onpeph7NW2mFz7O6m5k8lcvAfFPF/ARLG0I9QonXq9WdwnF4B0ncE8/K3G+K7GCxbo5+cGUt9brLugv0TDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-17T02:51:45.307919Z","bundle_sha256":"d0ea1d79fd6662570c0d5bbccb8b6e7970db2a8ecd8a75a8559e0345331c2eae"}}