{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:PU5SV4WESSZZUQ5JHFBALFWAXA","short_pith_number":"pith:PU5SV4WE","canonical_record":{"source":{"id":"2111.09994","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ph","submitted_at":"2021-11-19T01:12:13Z","cross_cats_sorted":[],"title_canon_sha256":"e116210407b55e6f19ccb1498ab231476db2ae273e86e978486261f81d58fa1a","abstract_canon_sha256":"25c03d63f8ff87e557101f969abeb0186056b62d0a247ff519174df0cdf2057b"},"schema_version":"1.0"},"canonical_sha256":"7d3b2af2c494b39a43a939420596c0b838c7834116d9970ee2f642b2f0b13114","source":{"kind":"arxiv","id":"2111.09994","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2111.09994","created_at":"2026-07-05T04:14:26Z"},{"alias_kind":"arxiv_version","alias_value":"2111.09994v2","created_at":"2026-07-05T04:14:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2111.09994","created_at":"2026-07-05T04:14:26Z"},{"alias_kind":"pith_short_12","alias_value":"PU5SV4WESSZZ","created_at":"2026-07-05T04:14:26Z"},{"alias_kind":"pith_short_16","alias_value":"PU5SV4WESSZZUQ5J","created_at":"2026-07-05T04:14:26Z"},{"alias_kind":"pith_short_8","alias_value":"PU5SV4WE","created_at":"2026-07-05T04:14:26Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:PU5SV4WESSZZUQ5JHFBALFWAXA","target":"record","payload":{"canonical_record":{"source":{"id":"2111.09994","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ph","submitted_at":"2021-11-19T01:12:13Z","cross_cats_sorted":[],"title_canon_sha256":"e116210407b55e6f19ccb1498ab231476db2ae273e86e978486261f81d58fa1a","abstract_canon_sha256":"25c03d63f8ff87e557101f969abeb0186056b62d0a247ff519174df0cdf2057b"},"schema_version":"1.0"},"canonical_sha256":"7d3b2af2c494b39a43a939420596c0b838c7834116d9970ee2f642b2f0b13114","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T04:14:26.436251Z","signature_b64":"3AML3C1JyAGzu4XxEvWpRlroS5jqPmNA9wwvj8sOguoNdAy8qqB4Anki//9WJ+yGvfjiAsficP8Py9JeoLPWDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7d3b2af2c494b39a43a939420596c0b838c7834116d9970ee2f642b2f0b13114","last_reissued_at":"2026-07-05T04:14:26.435908Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T04:14:26.435908Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2111.09994","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T04:14:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"r6vmhAM20kUB8QWdHzUUZUJY1iZ/+F7tjxWiyW+xKC3CItBgyH4M4QLT1tz18UOTQYEJ9C++MWzySvIaGV3dAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-13T15:41:07.218856Z"},"content_sha256":"e1e1f3fff8ea90850eb616928b45e388f3645189c0954f1cb4bdcda67b306cc4","schema_version":"1.0","event_id":"sha256:e1e1f3fff8ea90850eb616928b45e388f3645189c0954f1cb4bdcda67b306cc4"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:PU5SV4WESSZZUQ5JHFBALFWAXA","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Improved description of di-lepton production in $\\tau^-\\to\\nu_\\tau P^-$ decays","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Adolfo Guevara, Gabriel L\\'opez Castro, Pablo Roig","submitted_at":"2021-11-19T01:12:13Z","abstract_excerpt":"Recently, the Belle collaboration reported the first measurements of the $\\tau^- \\to\\nu_{\\tau}\\pi^-e^+e^-$ branching fraction and the spectrum of the pion-dielectron system. In an analysis previous to Belle's results, we evaluated this branching fraction which turned out to be compatible with that reported by Belle, although with a large uncertainty. This is the motivation to seek for improvements on our previous evaluation of $\\tau^- \\to \\nu_{\\tau}\\pi^-\\ell^+\\ell^-$ decays ($\\ell=e,\\,\\mu$). In this paper we improve our calculation of the $WP^-\\gamma^*$ vertex by including flavour symmetry bre"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2111.09994","kind":"arxiv","version":2},"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/2111.09994/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":"2026-07-05T04:14:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"u99SH9UcOylH03uYoQogYYfMZcFVNc9bwNrQqGFPm8hvZZFz3+hCjI94ExH6PhUDa+QaaaVNDYoJv/wUj6xRDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-13T15:41:07.219237Z"},"content_sha256":"e4431b41e64e060b42d2d40cfa3f0a113387db98e5b7879e50cf9a1587147902","schema_version":"1.0","event_id":"sha256:e4431b41e64e060b42d2d40cfa3f0a113387db98e5b7879e50cf9a1587147902"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/PU5SV4WESSZZUQ5JHFBALFWAXA/bundle.json","state_url":"https://pith.science/pith/PU5SV4WESSZZUQ5JHFBALFWAXA/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/PU5SV4WESSZZUQ5JHFBALFWAXA/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":"2026-08-13T15:41:07Z","links":{"resolver":"https://pith.science/pith/PU5SV4WESSZZUQ5JHFBALFWAXA","bundle":"https://pith.science/pith/PU5SV4WESSZZUQ5JHFBALFWAXA/bundle.json","state":"https://pith.science/pith/PU5SV4WESSZZUQ5JHFBALFWAXA/state.json","well_known_bundle":"https://pith.science/.well-known/pith/PU5SV4WESSZZUQ5JHFBALFWAXA/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:PU5SV4WESSZZUQ5JHFBALFWAXA","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":"25c03d63f8ff87e557101f969abeb0186056b62d0a247ff519174df0cdf2057b","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ph","submitted_at":"2021-11-19T01:12:13Z","title_canon_sha256":"e116210407b55e6f19ccb1498ab231476db2ae273e86e978486261f81d58fa1a"},"schema_version":"1.0","source":{"id":"2111.09994","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2111.09994","created_at":"2026-07-05T04:14:26Z"},{"alias_kind":"arxiv_version","alias_value":"2111.09994v2","created_at":"2026-07-05T04:14:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2111.09994","created_at":"2026-07-05T04:14:26Z"},{"alias_kind":"pith_short_12","alias_value":"PU5SV4WESSZZ","created_at":"2026-07-05T04:14:26Z"},{"alias_kind":"pith_short_16","alias_value":"PU5SV4WESSZZUQ5J","created_at":"2026-07-05T04:14:26Z"},{"alias_kind":"pith_short_8","alias_value":"PU5SV4WE","created_at":"2026-07-05T04:14:26Z"}],"graph_snapshots":[{"event_id":"sha256:e4431b41e64e060b42d2d40cfa3f0a113387db98e5b7879e50cf9a1587147902","target":"graph","created_at":"2026-07-05T04:14:26Z","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/2111.09994/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Recently, the Belle collaboration reported the first measurements of the $\\tau^- \\to\\nu_{\\tau}\\pi^-e^+e^-$ branching fraction and the spectrum of the pion-dielectron system. In an analysis previous to Belle's results, we evaluated this branching fraction which turned out to be compatible with that reported by Belle, although with a large uncertainty. This is the motivation to seek for improvements on our previous evaluation of $\\tau^- \\to \\nu_{\\tau}\\pi^-\\ell^+\\ell^-$ decays ($\\ell=e,\\,\\mu$). In this paper we improve our calculation of the $WP^-\\gamma^*$ vertex by including flavour symmetry bre","authors_text":"Adolfo Guevara, Gabriel L\\'opez Castro, Pablo Roig","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ph","submitted_at":"2021-11-19T01:12:13Z","title":"Improved description of di-lepton production in $\\tau^-\\to\\nu_\\tau P^-$ decays"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2111.09994","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:e1e1f3fff8ea90850eb616928b45e388f3645189c0954f1cb4bdcda67b306cc4","target":"record","created_at":"2026-07-05T04:14:26Z","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":"25c03d63f8ff87e557101f969abeb0186056b62d0a247ff519174df0cdf2057b","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ph","submitted_at":"2021-11-19T01:12:13Z","title_canon_sha256":"e116210407b55e6f19ccb1498ab231476db2ae273e86e978486261f81d58fa1a"},"schema_version":"1.0","source":{"id":"2111.09994","kind":"arxiv","version":2}},"canonical_sha256":"7d3b2af2c494b39a43a939420596c0b838c7834116d9970ee2f642b2f0b13114","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7d3b2af2c494b39a43a939420596c0b838c7834116d9970ee2f642b2f0b13114","first_computed_at":"2026-07-05T04:14:26.435908Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:14:26.435908Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"3AML3C1JyAGzu4XxEvWpRlroS5jqPmNA9wwvj8sOguoNdAy8qqB4Anki//9WJ+yGvfjiAsficP8Py9JeoLPWDQ==","signature_status":"signed_v1","signed_at":"2026-07-05T04:14:26.436251Z","signed_message":"canonical_sha256_bytes"},"source_id":"2111.09994","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e1e1f3fff8ea90850eb616928b45e388f3645189c0954f1cb4bdcda67b306cc4","sha256:e4431b41e64e060b42d2d40cfa3f0a113387db98e5b7879e50cf9a1587147902"],"state_sha256":"dc741bfc68f15f4c2f73e07042bb747a35940700b0a06d3d5b0e633e8f044037"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lMS7ot4kvKj3C3BJdpBEiP/PktXPmhc7SvgfWlSnUr7CcjdlSAaDkyhO39I3T3Taf5qXmqkOVgpGJWgCYELjBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-13T15:41:07.253880Z","bundle_sha256":"58befbf0c2258dbb55e2dfdd05edd99064dbb1c394467ed90af355cd8d5a9db1"}}