{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:VVGFOY2OTMAXAYZIKVC46X3H6D","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":"c1fdac2e08064d91719b9be4ca2824b0a1866305a82de7a89a561ace6228bae4","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2012-01-13T15:28:02Z","title_canon_sha256":"a714f150607b28b418730c1f17ef0a2496f3f130e8c2f338a12799ed2b5370a5"},"schema_version":"1.0","source":{"id":"1201.2865","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1201.2865","created_at":"2026-05-18T03:22:53Z"},{"alias_kind":"arxiv_version","alias_value":"1201.2865v2","created_at":"2026-05-18T03:22:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1201.2865","created_at":"2026-05-18T03:22:53Z"},{"alias_kind":"pith_short_12","alias_value":"VVGFOY2OTMAX","created_at":"2026-05-18T12:27:25Z"},{"alias_kind":"pith_short_16","alias_value":"VVGFOY2OTMAXAYZI","created_at":"2026-05-18T12:27:25Z"},{"alias_kind":"pith_short_8","alias_value":"VVGFOY2O","created_at":"2026-05-18T12:27:25Z"}],"graph_snapshots":[{"event_id":"sha256:b0f7e4c6bc9aef80749e1fe8ef5e9f6a535b6301ab83ff5e81d67714c59bc9ee","target":"graph","created_at":"2026-05-18T03:22:53Z","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 study the contextuality of a three-level quantum system using classical conditional entropy of measurement outcomes. First, we analytically construct the minimal configuration of measurements required to reveal contextuality. Next, an entropic contextual inequality is formulated, analogous to the entropic Bell inequalities derived by Braunstein and Caves in [Phys. Rev. Lett. {\\bf 61}, 662 (1988)], that must be satisfied by all non-contextual theories. We find optimal measurements for violation of this inequality. The approach is easily extendable to higher dimensional quantum systems and mo","authors_text":"Dagomir Kaszlikowski, Pawel Kurzynski, Ravishankar Ramanathan","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2012-01-13T15:28:02Z","title":"Entropic Test of Quantum Contextuality"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1201.2865","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":"sha256:519f92a6db72318a9523432ff3febb6f945618e4814de7d6026b94e385c7fe4f","target":"record","created_at":"2026-05-18T03:22:53Z","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":"c1fdac2e08064d91719b9be4ca2824b0a1866305a82de7a89a561ace6228bae4","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2012-01-13T15:28:02Z","title_canon_sha256":"a714f150607b28b418730c1f17ef0a2496f3f130e8c2f338a12799ed2b5370a5"},"schema_version":"1.0","source":{"id":"1201.2865","kind":"arxiv","version":2}},"canonical_sha256":"ad4c57634e9b017063285545cf5f67f0d0596ba7132ad40a64aaa0f89dde91cc","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ad4c57634e9b017063285545cf5f67f0d0596ba7132ad40a64aaa0f89dde91cc","first_computed_at":"2026-05-18T03:22:53.293612Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:22:53.293612Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"baiDIMO6JrD9aZoZFe9dnCAMBC5JY+C/nHBYpteolwGdGUv6Na+VB74cS1wrs2vmbVmVjPhXLO/SPipaa0++Cw==","signature_status":"signed_v1","signed_at":"2026-05-18T03:22:53.294083Z","signed_message":"canonical_sha256_bytes"},"source_id":"1201.2865","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:519f92a6db72318a9523432ff3febb6f945618e4814de7d6026b94e385c7fe4f","sha256:b0f7e4c6bc9aef80749e1fe8ef5e9f6a535b6301ab83ff5e81d67714c59bc9ee"],"state_sha256":"8603ed4ec919d75b2ce4ea77d446aa5204f0c2c68f7fc03da145c2479c906eb3"}