{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:KPLM37GRFK6VAB2CBVTYJJW2E4","short_pith_number":"pith:KPLM37GR","canonical_record":{"source":{"id":"2506.06700","kind":"arxiv","version":6},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2025-06-07T07:50:49Z","cross_cats_sorted":["cs.IT","math-ph","math.IT","math.MP"],"title_canon_sha256":"e95ee79e22ef76f34bc74d03199f1ddfa6809c0cbd70db760f3b6d5129f899a6","abstract_canon_sha256":"3872d908cb6857c30878337b3d91b84fb0fb37b219011f1ad011bd5247b158a1"},"schema_version":"1.0"},"canonical_sha256":"53d6cdfcd12abd5007420d6784a6da271b2d80d66c23913edba08b762309ae04","source":{"kind":"arxiv","id":"2506.06700","version":6},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2506.06700","created_at":"2026-07-17T01:21:41Z"},{"alias_kind":"arxiv_version","alias_value":"2506.06700v6","created_at":"2026-07-17T01:21:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2506.06700","created_at":"2026-07-17T01:21:41Z"},{"alias_kind":"pith_short_12","alias_value":"KPLM37GRFK6V","created_at":"2026-07-17T01:21:41Z"},{"alias_kind":"pith_short_16","alias_value":"KPLM37GRFK6VAB2C","created_at":"2026-07-17T01:21:41Z"},{"alias_kind":"pith_short_8","alias_value":"KPLM37GR","created_at":"2026-07-17T01:21:41Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:KPLM37GRFK6VAB2CBVTYJJW2E4","target":"record","payload":{"canonical_record":{"source":{"id":"2506.06700","kind":"arxiv","version":6},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2025-06-07T07:50:49Z","cross_cats_sorted":["cs.IT","math-ph","math.IT","math.MP"],"title_canon_sha256":"e95ee79e22ef76f34bc74d03199f1ddfa6809c0cbd70db760f3b6d5129f899a6","abstract_canon_sha256":"3872d908cb6857c30878337b3d91b84fb0fb37b219011f1ad011bd5247b158a1"},"schema_version":"1.0"},"canonical_sha256":"53d6cdfcd12abd5007420d6784a6da271b2d80d66c23913edba08b762309ae04","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-17T01:21:41.504460Z","signature_b64":"nTCfRdg2miq8W8SR1r14/5pQO54eU6cIG+4OpfaVk7QEB5Ul+iBBC4Ziw3AC2tpnNuKT0c8nW/ipLj9OSOSqDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"53d6cdfcd12abd5007420d6784a6da271b2d80d66c23913edba08b762309ae04","last_reissued_at":"2026-07-17T01:21:41.503545Z","signature_status":"signed_v1","first_computed_at":"2026-07-17T01:21:41.503545Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2506.06700","source_version":6,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-17T01:21:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"GZqZioaEHiNdJb+bahVV/H6/eiVh7QTYi6rHGjexa51acyUXlaZ5y9a7cpNdtaHSgOdLRS1rGORVT3JfGIuCDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-08T06:57:19.954340Z"},"content_sha256":"69d2c334637aeaa2d63782138eb2adff39c1a5bf43ab804d1646b34c0a265dac","schema_version":"1.0","event_id":"sha256:69d2c334637aeaa2d63782138eb2adff39c1a5bf43ab804d1646b34c0a265dac"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:KPLM37GRFK6VAB2CBVTYJJW2E4","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Quantum accessible information and classical entropy inequalities","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.IT","math-ph","math.IT","math.MP"],"primary_cat":"quant-ph","authors_text":"A. S. Holevo, A. V. Utkin","submitted_at":"2025-06-07T07:50:49Z","abstract_excerpt":"Computing accessible information for an ensemble of quantum states is a basic problem in quantum information theory. We show that the recently obtained optimality criterion (A.S. Holevo, Lobachevskii J. Math., \\textbf{43}:7 (2022), 1646-1650), when applied to specific ensembles of states leads to nontrivial tight entropy inequalities that are discrete relatives of the famous log-Sobolev inequality. In this light, the hypothesis of globally information-optimal measurement for an ensemble of equiangular equiprobable states (quantum pyramids) (B.-G. Englert and J. \\v{R}eh\\'{a}\\v{c}ek, J. Mod. Opt"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2506.06700","kind":"arxiv","version":6},"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/2506.06700/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":"2026-07-17T01:21:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vE7e5Pxum8CzG55a5ZU22lSQpk6Hk5/9PuyefcvFuiU/Aa9KikNpYIhcuWSwg/e/4fIk1Ry/Yu+/YepZXJTzAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-08T06:57:19.954845Z"},"content_sha256":"a07dc9c102354257aad4b67155460298516ad598857999a55e8da5656a3a8cb6","schema_version":"1.0","event_id":"sha256:a07dc9c102354257aad4b67155460298516ad598857999a55e8da5656a3a8cb6"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/KPLM37GRFK6VAB2CBVTYJJW2E4/bundle.json","state_url":"https://pith.science/pith/KPLM37GRFK6VAB2CBVTYJJW2E4/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/KPLM37GRFK6VAB2CBVTYJJW2E4/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":"2026-08-08T06:57:19Z","links":{"resolver":"https://pith.science/pith/KPLM37GRFK6VAB2CBVTYJJW2E4","bundle":"https://pith.science/pith/KPLM37GRFK6VAB2CBVTYJJW2E4/bundle.json","state":"https://pith.science/pith/KPLM37GRFK6VAB2CBVTYJJW2E4/state.json","well_known_bundle":"https://pith.science/.well-known/pith/KPLM37GRFK6VAB2CBVTYJJW2E4/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:KPLM37GRFK6VAB2CBVTYJJW2E4","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":"3872d908cb6857c30878337b3d91b84fb0fb37b219011f1ad011bd5247b158a1","cross_cats_sorted":["cs.IT","math-ph","math.IT","math.MP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2025-06-07T07:50:49Z","title_canon_sha256":"e95ee79e22ef76f34bc74d03199f1ddfa6809c0cbd70db760f3b6d5129f899a6"},"schema_version":"1.0","source":{"id":"2506.06700","kind":"arxiv","version":6}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2506.06700","created_at":"2026-07-17T01:21:41Z"},{"alias_kind":"arxiv_version","alias_value":"2506.06700v6","created_at":"2026-07-17T01:21:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2506.06700","created_at":"2026-07-17T01:21:41Z"},{"alias_kind":"pith_short_12","alias_value":"KPLM37GRFK6V","created_at":"2026-07-17T01:21:41Z"},{"alias_kind":"pith_short_16","alias_value":"KPLM37GRFK6VAB2C","created_at":"2026-07-17T01:21:41Z"},{"alias_kind":"pith_short_8","alias_value":"KPLM37GR","created_at":"2026-07-17T01:21:41Z"}],"graph_snapshots":[{"event_id":"sha256:a07dc9c102354257aad4b67155460298516ad598857999a55e8da5656a3a8cb6","target":"graph","created_at":"2026-07-17T01:21:41Z","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/2506.06700/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Computing accessible information for an ensemble of quantum states is a basic problem in quantum information theory. We show that the recently obtained optimality criterion (A.S. Holevo, Lobachevskii J. Math., \\textbf{43}:7 (2022), 1646-1650), when applied to specific ensembles of states leads to nontrivial tight entropy inequalities that are discrete relatives of the famous log-Sobolev inequality. In this light, the hypothesis of globally information-optimal measurement for an ensemble of equiangular equiprobable states (quantum pyramids) (B.-G. Englert and J. \\v{R}eh\\'{a}\\v{c}ek, J. Mod. Opt","authors_text":"A. S. Holevo, A. V. Utkin","cross_cats":["cs.IT","math-ph","math.IT","math.MP"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2025-06-07T07:50:49Z","title":"Quantum accessible information and classical entropy inequalities"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2506.06700","kind":"arxiv","version":6},"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":"sha256:69d2c334637aeaa2d63782138eb2adff39c1a5bf43ab804d1646b34c0a265dac","target":"record","created_at":"2026-07-17T01:21:41Z","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":"3872d908cb6857c30878337b3d91b84fb0fb37b219011f1ad011bd5247b158a1","cross_cats_sorted":["cs.IT","math-ph","math.IT","math.MP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2025-06-07T07:50:49Z","title_canon_sha256":"e95ee79e22ef76f34bc74d03199f1ddfa6809c0cbd70db760f3b6d5129f899a6"},"schema_version":"1.0","source":{"id":"2506.06700","kind":"arxiv","version":6}},"canonical_sha256":"53d6cdfcd12abd5007420d6784a6da271b2d80d66c23913edba08b762309ae04","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"53d6cdfcd12abd5007420d6784a6da271b2d80d66c23913edba08b762309ae04","first_computed_at":"2026-07-17T01:21:41.503545Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-17T01:21:41.503545Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"nTCfRdg2miq8W8SR1r14/5pQO54eU6cIG+4OpfaVk7QEB5Ul+iBBC4Ziw3AC2tpnNuKT0c8nW/ipLj9OSOSqDA==","signature_status":"signed_v1","signed_at":"2026-07-17T01:21:41.504460Z","signed_message":"canonical_sha256_bytes"},"source_id":"2506.06700","source_kind":"arxiv","source_version":6}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:69d2c334637aeaa2d63782138eb2adff39c1a5bf43ab804d1646b34c0a265dac","sha256:a07dc9c102354257aad4b67155460298516ad598857999a55e8da5656a3a8cb6"],"state_sha256":"2c745bcc847084557037d969ad437431475e2906cf4ebcf50c725e8faf3999c8"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PW8N6maW9Yp3GbOSLqDcZwHekRBJOadsztuhiJ33aoUcxAGeIpr802S+0jRr35/ErGXOdHhoL4E8gnH0OLk1AQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-08T06:57:19.958556Z","bundle_sha256":"02e3746058cbf84a1e48cd5a15f6800d116c069a16cbd386e7536a07f751a86b"}}