{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2001:GDFMKZ3ZXVXBMRDIKDOODVEWO7","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":"48382b5428c5b49c0740b4ad19a32aa73075e907dd58d58a6eb7500ef3d71b69","cross_cats_sorted":[],"license":"","primary_cat":"hep-ph","submitted_at":"2001-02-16T22:04:24Z","title_canon_sha256":"76cd6bb8c27d8b70f5cd1730437416ba1dc301ce57f753e209e2d1640427725c"},"schema_version":"1.0","source":{"id":"hep-ph/0102213","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ph/0102213","created_at":"2026-07-04T16:27:14Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/0102213v1","created_at":"2026-07-04T16:27:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/0102213","created_at":"2026-07-04T16:27:14Z"},{"alias_kind":"pith_short_12","alias_value":"GDFMKZ3ZXVXB","created_at":"2026-07-04T16:27:14Z"},{"alias_kind":"pith_short_16","alias_value":"GDFMKZ3ZXVXBMRDI","created_at":"2026-07-04T16:27:14Z"},{"alias_kind":"pith_short_8","alias_value":"GDFMKZ3Z","created_at":"2026-07-04T16:27:14Z"}],"graph_snapshots":[{"event_id":"sha256:b2ea61b727aec7dbcb81c74fce1c3fcd635b27a77e583ea9edacadd30c173052","target":"graph","created_at":"2026-07-04T16:27:14Z","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/hep-ph/0102213/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The amplitude for the anomalous process gamma pi -> pi pi is evaluated to two loops in the chiral expansion by means of a dispersive method. The two new coupling constants that enter at this order are estimated via sum rules derived from a non-perturbative chiral approach. With these coupling constants fixed, the numerical results are given and compared with the available experimental information.","authors_text":"Torben Hannah","cross_cats":[],"headline":"","license":"","primary_cat":"hep-ph","submitted_at":"2001-02-16T22:04:24Z","title":"The anomalous process gamma pi -> pi pi to two loops"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/0102213","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":"sha256:3db80b8d6ce070e48a0f3e2acf0207bdabdbd18059d13bd2faaebf0b7abe11e2","target":"record","created_at":"2026-07-04T16:27:14Z","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":"48382b5428c5b49c0740b4ad19a32aa73075e907dd58d58a6eb7500ef3d71b69","cross_cats_sorted":[],"license":"","primary_cat":"hep-ph","submitted_at":"2001-02-16T22:04:24Z","title_canon_sha256":"76cd6bb8c27d8b70f5cd1730437416ba1dc301ce57f753e209e2d1640427725c"},"schema_version":"1.0","source":{"id":"hep-ph/0102213","kind":"arxiv","version":1}},"canonical_sha256":"30cac56779bd6e16446850dce1d49677fd0d6f369c8157d2a5858a1be0862def","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"30cac56779bd6e16446850dce1d49677fd0d6f369c8157d2a5858a1be0862def","first_computed_at":"2026-07-04T16:27:14.583729Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:27:14.583729Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"LGIWpbnbXeyY9K7Ka2IZOn0qFXiA+I+VB6uPjxgWU/PXj9GgHtj7mxpJTYuNQTHNDLAHd62wldmmUFm0Vme+Cw==","signature_status":"signed_v1","signed_at":"2026-07-04T16:27:14.584091Z","signed_message":"canonical_sha256_bytes"},"source_id":"hep-ph/0102213","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3db80b8d6ce070e48a0f3e2acf0207bdabdbd18059d13bd2faaebf0b7abe11e2","sha256:b2ea61b727aec7dbcb81c74fce1c3fcd635b27a77e583ea9edacadd30c173052"],"state_sha256":"e37c9736b17460ded4f6b4c96f15d6e9d8579fc67b33de6ccd8a5e9a87c95e57"}