{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:A4UR7H6M4IRME7HSWCITTCJM3I","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":"52b7bc6370cbd5047c42fedaf40e0ec2a95e7cb75b3c2dafa72400c184084bf7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2017-12-28T08:38:23Z","title_canon_sha256":"12fd6671399868287f77aff64fe780830d1be50b1b47625e684019c10bd4bc6d"},"schema_version":"1.0","source":{"id":"1712.09787","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1712.09787","created_at":"2026-05-18T00:13:30Z"},{"alias_kind":"arxiv_version","alias_value":"1712.09787v1","created_at":"2026-05-18T00:13:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1712.09787","created_at":"2026-05-18T00:13:30Z"},{"alias_kind":"pith_short_12","alias_value":"A4UR7H6M4IRM","created_at":"2026-05-18T12:31:05Z"},{"alias_kind":"pith_short_16","alias_value":"A4UR7H6M4IRME7HS","created_at":"2026-05-18T12:31:05Z"},{"alias_kind":"pith_short_8","alias_value":"A4UR7H6M","created_at":"2026-05-18T12:31:05Z"}],"graph_snapshots":[{"event_id":"sha256:be6faebf2abd31595d46a791feb784d32b7d949a02ebc6ad2a97287812f5ce89","target":"graph","created_at":"2026-05-18T00:13:30Z","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":"This talk is about the hadronic light-by-light contribution to the muon anomalous magnetic moment, mainly our old work but including some newer results as well. It concentrates on the model calculations. Most attention is paid to pseudo-scalar exchange and the pion loop contribution. Scalar, $a_1$-exchange and other contributions are shortly discussed as well. For the $\\pi^0$-exchange a possible large cancellation between connected and disconnected diagrams is expected.","authors_text":"Johan Bijnens (Lund)","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2017-12-28T08:38:23Z","title":"On the Hadronic light-by-light contribution to the muon $g-2$"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1712.09787","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":"sha256:87e4951e82ee46c94c1e8b6b9e128a02dd5cd48059b495c376aae5613279f405","target":"record","created_at":"2026-05-18T00:13:30Z","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":"52b7bc6370cbd5047c42fedaf40e0ec2a95e7cb75b3c2dafa72400c184084bf7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2017-12-28T08:38:23Z","title_canon_sha256":"12fd6671399868287f77aff64fe780830d1be50b1b47625e684019c10bd4bc6d"},"schema_version":"1.0","source":{"id":"1712.09787","kind":"arxiv","version":1}},"canonical_sha256":"07291f9fcce222c27cf2b09139892cda2a92ed691bedf9c017492941e04f8eda","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"07291f9fcce222c27cf2b09139892cda2a92ed691bedf9c017492941e04f8eda","first_computed_at":"2026-05-18T00:13:30.729795Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:13:30.729795Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"d5ulL/2i/BeXGReBaViMNSJYLrs2OmyEltJIRMGFcYFGyfeFpt8BI3MMIhmTd22eaf20ZDlJ2fEqA8nikaZUBA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:13:30.730531Z","signed_message":"canonical_sha256_bytes"},"source_id":"1712.09787","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:87e4951e82ee46c94c1e8b6b9e128a02dd5cd48059b495c376aae5613279f405","sha256:be6faebf2abd31595d46a791feb784d32b7d949a02ebc6ad2a97287812f5ce89"],"state_sha256":"bd27609355ed89b602e83982232f0e8f7176caedd80d6615f196b12e00b033a9"}