{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:YS6WW2XQSC7CAANMQHAYIQCHBH","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":"f607c96f06424e79e83718a2b8c828680715518244ec2e0c9f4516888e0685de","cross_cats_sorted":["hep-ex","hep-lat"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2013-01-30T09:03:41Z","title_canon_sha256":"e58a354f361c3247c5fdaf83e0995c39a27d8b348b2a1037d6398ddbf79016ee"},"schema_version":"1.0","source":{"id":"1301.7167","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1301.7167","created_at":"2026-05-18T02:32:22Z"},{"alias_kind":"arxiv_version","alias_value":"1301.7167v1","created_at":"2026-05-18T02:32:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1301.7167","created_at":"2026-05-18T02:32:22Z"},{"alias_kind":"pith_short_12","alias_value":"YS6WW2XQSC7C","created_at":"2026-05-18T12:28:09Z"},{"alias_kind":"pith_short_16","alias_value":"YS6WW2XQSC7CAANM","created_at":"2026-05-18T12:28:09Z"},{"alias_kind":"pith_short_8","alias_value":"YS6WW2XQ","created_at":"2026-05-18T12:28:09Z"}],"graph_snapshots":[{"event_id":"sha256:2d3e51503c73eac0caa9e04707775de484aedfe716ae442d9805d1fd8eecbec8","target":"graph","created_at":"2026-05-18T02:32:22Z","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 analyse Belle data on the decay $\\tau^- \\to \\pi^- \\pi^0 \\nu_\\tau$ using a dispersive representation of the vector form factor which is consistent with chiral symmetry and preserves analyticity and unitarity exactly. We fit the unknown theoretical parameters from the data, determining the values of the related low-energy observables $\\left\\langle r^2\\right\\rangle^\\pi_V$ and $c_V^\\pi$. The implementation of isospin breaking effects is also discussed.","authors_text":"Daniel G\\'omez Dumm, Pablo Roig","cross_cats":["hep-ex","hep-lat"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2013-01-30T09:03:41Z","title":"Dispersive analysis of $\\tau^-\\to\\pi^-\\pi^0\\nu_\\tau$ Belle data"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1301.7167","kind":"arxiv","version":1},"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:d89d4e5a278c5909e57992f897419838332c100292ed5bcbac54e91a1c410d05","target":"record","created_at":"2026-05-18T02:32:22Z","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":"f607c96f06424e79e83718a2b8c828680715518244ec2e0c9f4516888e0685de","cross_cats_sorted":["hep-ex","hep-lat"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2013-01-30T09:03:41Z","title_canon_sha256":"e58a354f361c3247c5fdaf83e0995c39a27d8b348b2a1037d6398ddbf79016ee"},"schema_version":"1.0","source":{"id":"1301.7167","kind":"arxiv","version":1}},"canonical_sha256":"c4bd6b6af090be2001ac81c184404709c3147cefe5b586e9498771347318af0d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c4bd6b6af090be2001ac81c184404709c3147cefe5b586e9498771347318af0d","first_computed_at":"2026-05-18T02:32:22.701143Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:32:22.701143Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"+kJTZrlFcWMy4gTKZsKVBeot8z3gcoHPJEMuGqbYkC8S4WFsukH+eeSdd1BJbewOnV3Jdhf8m9tCq1ccPueoDg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:32:22.701551Z","signed_message":"canonical_sha256_bytes"},"source_id":"1301.7167","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d89d4e5a278c5909e57992f897419838332c100292ed5bcbac54e91a1c410d05","sha256:2d3e51503c73eac0caa9e04707775de484aedfe716ae442d9805d1fd8eecbec8"],"state_sha256":"1866a778568d240e5ff966215ba3f65e9fd595241cf5692c7e4f56b75f6cc1e8"}