{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:2G32SI7B6FS7IEEPSK77NVZ34R","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":"874d8b42e22c74db543486c43600a1a06af1636d0c7511d06452fd8180861347","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2013-07-12T03:12:35Z","title_canon_sha256":"89b3761ed8e476174d8ff6e6f2e9dfe95c4646380d91c8634f4630abea6ccd4c"},"schema_version":"1.0","source":{"id":"1307.3311","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1307.3311","created_at":"2026-05-18T03:08:24Z"},{"alias_kind":"arxiv_version","alias_value":"1307.3311v2","created_at":"2026-05-18T03:08:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1307.3311","created_at":"2026-05-18T03:08:24Z"},{"alias_kind":"pith_short_12","alias_value":"2G32SI7B6FS7","created_at":"2026-05-18T12:27:30Z"},{"alias_kind":"pith_short_16","alias_value":"2G32SI7B6FS7IEEP","created_at":"2026-05-18T12:27:30Z"},{"alias_kind":"pith_short_8","alias_value":"2G32SI7B","created_at":"2026-05-18T12:27:30Z"}],"graph_snapshots":[{"event_id":"sha256:6107e7798b86a15c253acfc0d4853f81f4d4d90f277a574ba8dd831abdb929ad","target":"graph","created_at":"2026-05-18T03:08:24Z","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":"Matrix elements of flavor-diagonal light quark pseudoscalar densities and axial anomaly operators between vacuum and {\\eta} and {\\eta}' meson states have been determined. This has been done by evaluating current-current correlators of octet-octet and octet-singlet axial currents using QCD sum rules. The numerical values obtained for the matrix elements compare well with those obtained in the current literature.","authors_text":"Janardan Prasad Singh","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2013-07-12T03:12:35Z","title":"Light quark pseudoscalar densities and anomaly matrix elements for {\\eta} and {\\eta}' mesons"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1307.3311","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:ec00c530b9781eb7c0d2b784ac5e175f1821ae7ca2e83b24687a97fea27189dd","target":"record","created_at":"2026-05-18T03:08:24Z","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":"874d8b42e22c74db543486c43600a1a06af1636d0c7511d06452fd8180861347","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2013-07-12T03:12:35Z","title_canon_sha256":"89b3761ed8e476174d8ff6e6f2e9dfe95c4646380d91c8634f4630abea6ccd4c"},"schema_version":"1.0","source":{"id":"1307.3311","kind":"arxiv","version":2}},"canonical_sha256":"d1b7a923e1f165f4108f92bff6d73be45e7f15c351b001be8efbc0f240b51535","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d1b7a923e1f165f4108f92bff6d73be45e7f15c351b001be8efbc0f240b51535","first_computed_at":"2026-05-18T03:08:24.677512Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:08:24.677512Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"CChR9V11Gw2qcQFmWPYvpXpl4+RhBiU2g5vHfF7Bhe7gAbtxTDzCZ6c5v02VJZssLHPi5a3qTQMV/dTWsFwIDg==","signature_status":"signed_v1","signed_at":"2026-05-18T03:08:24.678338Z","signed_message":"canonical_sha256_bytes"},"source_id":"1307.3311","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ec00c530b9781eb7c0d2b784ac5e175f1821ae7ca2e83b24687a97fea27189dd","sha256:6107e7798b86a15c253acfc0d4853f81f4d4d90f277a574ba8dd831abdb929ad"],"state_sha256":"a4c5ac090bf73d0d1584817eff15d3e0487b846e27d8cad28a7802584f58990f"}