{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:NVVJTN6TIMJEOROAFOFA3VLR55","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":"b2df5bbc7ccbbc9a8ccea2e3ec2c50a8623a9583fe2e5b12226b421df6fa40f1","cross_cats_sorted":["hep-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2015-12-17T11:49:13Z","title_canon_sha256":"8304ca77735745e2a27c36cf4edbe6eb8b688d01a726de39b8ad9660373b7a12"},"schema_version":"1.0","source":{"id":"1512.05544","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1512.05544","created_at":"2026-05-18T00:30:09Z"},{"alias_kind":"arxiv_version","alias_value":"1512.05544v4","created_at":"2026-05-18T00:30:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1512.05544","created_at":"2026-05-18T00:30:09Z"},{"alias_kind":"pith_short_12","alias_value":"NVVJTN6TIMJE","created_at":"2026-05-18T12:29:34Z"},{"alias_kind":"pith_short_16","alias_value":"NVVJTN6TIMJEOROA","created_at":"2026-05-18T12:29:34Z"},{"alias_kind":"pith_short_8","alias_value":"NVVJTN6T","created_at":"2026-05-18T12:29:34Z"}],"graph_snapshots":[{"event_id":"sha256:8e628e4ed80e34cdf5afdb4cc28b469474e1c2bc44d8f1e9fce60665766d9a77","target":"graph","created_at":"2026-05-18T00:30:09Z","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":"When the measurements from the FCC-ee become available, an improved determination of the standard-model \"input\" parameters will be needed to fully exploit the new precision data towards either constraining or fitting the parameters of beyond-the-standard-model theories. Among these input parameters is the electromagnetic coupling constant estimated at the Z mass scale, alpha_QED(mZ). The measurement of the muon forward-backward asymmetry at the FCC-ee, just below and just above the Z pole, can be used to make a direct determination of alpha_QED(mZ) with an accuracy deemed adequate for an optim","authors_text":"Patrick Janot","cross_cats":["hep-ex"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2015-12-17T11:49:13Z","title":"Direct measurement of alpha_QED(mZ) at the FCC-ee"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1512.05544","kind":"arxiv","version":4},"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":"sha256:7650724496bd4facd1b6dd5e7a51b7d8aa0275f4590eaf87ce89503bfd8fd688","target":"record","created_at":"2026-05-18T00:30:09Z","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":"b2df5bbc7ccbbc9a8ccea2e3ec2c50a8623a9583fe2e5b12226b421df6fa40f1","cross_cats_sorted":["hep-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2015-12-17T11:49:13Z","title_canon_sha256":"8304ca77735745e2a27c36cf4edbe6eb8b688d01a726de39b8ad9660373b7a12"},"schema_version":"1.0","source":{"id":"1512.05544","kind":"arxiv","version":4}},"canonical_sha256":"6d6a99b7d343124745c02b8a0dd571ef7be98120dc368c7b45eb8810afe6e73a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6d6a99b7d343124745c02b8a0dd571ef7be98120dc368c7b45eb8810afe6e73a","first_computed_at":"2026-05-18T00:30:09.447297Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:30:09.447297Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Q8gduAYmDq2I1LrIaX9jHRaY4tjgE16NjB3hfLa12sBNlR3px+4mJ/HjBQvVtHTdIF4nOamXEmiMkBlZbo4XAg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:30:09.448009Z","signed_message":"canonical_sha256_bytes"},"source_id":"1512.05544","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7650724496bd4facd1b6dd5e7a51b7d8aa0275f4590eaf87ce89503bfd8fd688","sha256:8e628e4ed80e34cdf5afdb4cc28b469474e1c2bc44d8f1e9fce60665766d9a77"],"state_sha256":"df8ad56ee9bb7d51498d418043d349170c8e8d8d740fb3fd752e6ffcc73f7784"}