{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2007:QYUMU5IFFP24MBKVZK45QMIGLG","short_pith_number":"pith:QYUMU5IF","canonical_record":{"source":{"id":"hep-ph/0701243","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"hep-ph","submitted_at":"2007-01-29T16:48:19Z","cross_cats_sorted":[],"title_canon_sha256":"0b55a34575b16c3dd3fa699b184d14ca7cfb27611e36afb0c0952666459d28fa","abstract_canon_sha256":"f66078fbf01c7e02f2d2ff66d462f2d8d4db5176b788802813f616b4b37b2040"},"schema_version":"1.0"},"canonical_sha256":"8628ca75052bf5c60555cab9d831065983786ccfd9d86d2b565841ace150f183","source":{"kind":"arxiv","id":"hep-ph/0701243","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ph/0701243","created_at":"2026-05-18T04:38:27Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/0701243v2","created_at":"2026-05-18T04:38:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/0701243","created_at":"2026-05-18T04:38:27Z"},{"alias_kind":"pith_short_12","alias_value":"QYUMU5IFFP24","created_at":"2026-05-18T12:25:56Z"},{"alias_kind":"pith_short_16","alias_value":"QYUMU5IFFP24MBKV","created_at":"2026-05-18T12:25:56Z"},{"alias_kind":"pith_short_8","alias_value":"QYUMU5IF","created_at":"2026-05-18T12:25:56Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2007:QYUMU5IFFP24MBKVZK45QMIGLG","target":"record","payload":{"canonical_record":{"source":{"id":"hep-ph/0701243","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"hep-ph","submitted_at":"2007-01-29T16:48:19Z","cross_cats_sorted":[],"title_canon_sha256":"0b55a34575b16c3dd3fa699b184d14ca7cfb27611e36afb0c0952666459d28fa","abstract_canon_sha256":"f66078fbf01c7e02f2d2ff66d462f2d8d4db5176b788802813f616b4b37b2040"},"schema_version":"1.0"},"canonical_sha256":"8628ca75052bf5c60555cab9d831065983786ccfd9d86d2b565841ace150f183","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:38:27.044611Z","signature_b64":"hDxBK+WuT7jZEMCPCOxCqHr1FZYOy8SEFKXcPLC1G+Et5cTLpouzAx49zGoLDQ66474qvDbM5QNj/DDi8gtrCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8628ca75052bf5c60555cab9d831065983786ccfd9d86d2b565841ace150f183","last_reissued_at":"2026-05-18T04:38:27.044161Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:38:27.044161Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"hep-ph/0701243","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":"2026-05-18T04:38:27Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AtOFen2yeOhkFNqZtFdrWf8GARG8pWT+6S+cMBJ6fX08CX12zn1nu+j238VWp8xqkKzkuStuofEQe1I/g0EGAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T23:43:33.593696Z"},"content_sha256":"98b4ed5b453442acd26bd2f048bc7294e280d2ad4a023df60a6a1aee28e2b358","schema_version":"1.0","event_id":"sha256:98b4ed5b453442acd26bd2f048bc7294e280d2ad4a023df60a6a1aee28e2b358"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2007:QYUMU5IFFP24MBKVZK45QMIGLG","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Pion-photon Transition Distribution Amplitudes in the Spectral Quark Model","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Enrique Ruiz Arriola, Wojciech Broniowski","submitted_at":"2007-01-29T16:48:19Z","abstract_excerpt":"The vector and axial pion-photon transition distribution amplitudes are analyzed in the Spectral Quark Model. We proceed by the evaluation of double distributions through the use of a manifestly covariant calculation based on the alpha representation of propagators. As a result polynomiality is incorporated and calculations become rather simple. Explicit formulas, holding at the low-energy quark-model scale, are obtained. The corresponding form factors for the anomalous decay pi0 -> gamma gamma* and the radiative pion decays are also evaluated and confronted with the data."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/0701243","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":""},"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":"2026-05-18T04:38:27Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"aIDs1nHXqhabFsv3ULpNglKiZLMU7HfDaZRcxNxWXuS7KgXDlWSuYAUNqVwuoF6XK5Y28yQ9NHHQLy0s+kNzAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T23:43:33.594075Z"},"content_sha256":"3070e29372d71e49807d7e548195ed444d6931e22efa12c7e08402d640a6b423","schema_version":"1.0","event_id":"sha256:3070e29372d71e49807d7e548195ed444d6931e22efa12c7e08402d640a6b423"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/QYUMU5IFFP24MBKVZK45QMIGLG/bundle.json","state_url":"https://pith.science/pith/QYUMU5IFFP24MBKVZK45QMIGLG/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/QYUMU5IFFP24MBKVZK45QMIGLG/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":"2026-05-27T23:43:33Z","links":{"resolver":"https://pith.science/pith/QYUMU5IFFP24MBKVZK45QMIGLG","bundle":"https://pith.science/pith/QYUMU5IFFP24MBKVZK45QMIGLG/bundle.json","state":"https://pith.science/pith/QYUMU5IFFP24MBKVZK45QMIGLG/state.json","well_known_bundle":"https://pith.science/.well-known/pith/QYUMU5IFFP24MBKVZK45QMIGLG/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2007:QYUMU5IFFP24MBKVZK45QMIGLG","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":"f66078fbf01c7e02f2d2ff66d462f2d8d4db5176b788802813f616b4b37b2040","cross_cats_sorted":[],"license":"","primary_cat":"hep-ph","submitted_at":"2007-01-29T16:48:19Z","title_canon_sha256":"0b55a34575b16c3dd3fa699b184d14ca7cfb27611e36afb0c0952666459d28fa"},"schema_version":"1.0","source":{"id":"hep-ph/0701243","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ph/0701243","created_at":"2026-05-18T04:38:27Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/0701243v2","created_at":"2026-05-18T04:38:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/0701243","created_at":"2026-05-18T04:38:27Z"},{"alias_kind":"pith_short_12","alias_value":"QYUMU5IFFP24","created_at":"2026-05-18T12:25:56Z"},{"alias_kind":"pith_short_16","alias_value":"QYUMU5IFFP24MBKV","created_at":"2026-05-18T12:25:56Z"},{"alias_kind":"pith_short_8","alias_value":"QYUMU5IF","created_at":"2026-05-18T12:25:56Z"}],"graph_snapshots":[{"event_id":"sha256:3070e29372d71e49807d7e548195ed444d6931e22efa12c7e08402d640a6b423","target":"graph","created_at":"2026-05-18T04:38:27Z","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":"The vector and axial pion-photon transition distribution amplitudes are analyzed in the Spectral Quark Model. We proceed by the evaluation of double distributions through the use of a manifestly covariant calculation based on the alpha representation of propagators. As a result polynomiality is incorporated and calculations become rather simple. Explicit formulas, holding at the low-energy quark-model scale, are obtained. The corresponding form factors for the anomalous decay pi0 -> gamma gamma* and the radiative pion decays are also evaluated and confronted with the data.","authors_text":"Enrique Ruiz Arriola, Wojciech Broniowski","cross_cats":[],"headline":"","license":"","primary_cat":"hep-ph","submitted_at":"2007-01-29T16:48:19Z","title":"Pion-photon Transition Distribution Amplitudes in the Spectral Quark Model"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/0701243","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":"sha256:98b4ed5b453442acd26bd2f048bc7294e280d2ad4a023df60a6a1aee28e2b358","target":"record","created_at":"2026-05-18T04:38:27Z","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":"f66078fbf01c7e02f2d2ff66d462f2d8d4db5176b788802813f616b4b37b2040","cross_cats_sorted":[],"license":"","primary_cat":"hep-ph","submitted_at":"2007-01-29T16:48:19Z","title_canon_sha256":"0b55a34575b16c3dd3fa699b184d14ca7cfb27611e36afb0c0952666459d28fa"},"schema_version":"1.0","source":{"id":"hep-ph/0701243","kind":"arxiv","version":2}},"canonical_sha256":"8628ca75052bf5c60555cab9d831065983786ccfd9d86d2b565841ace150f183","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8628ca75052bf5c60555cab9d831065983786ccfd9d86d2b565841ace150f183","first_computed_at":"2026-05-18T04:38:27.044161Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:38:27.044161Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"hDxBK+WuT7jZEMCPCOxCqHr1FZYOy8SEFKXcPLC1G+Et5cTLpouzAx49zGoLDQ66474qvDbM5QNj/DDi8gtrCA==","signature_status":"signed_v1","signed_at":"2026-05-18T04:38:27.044611Z","signed_message":"canonical_sha256_bytes"},"source_id":"hep-ph/0701243","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:98b4ed5b453442acd26bd2f048bc7294e280d2ad4a023df60a6a1aee28e2b358","sha256:3070e29372d71e49807d7e548195ed444d6931e22efa12c7e08402d640a6b423"],"state_sha256":"04df6f10f656280fe584796bfea882eb5a2a0bf9c24dd9c9d46f3168c1f7c8ff"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"b8zBz41GBMKXjLs0UTq8vnLs87is9U8S3vEdBw3bDaYsiFu+phC/Vj9eGhv1WgBithmCMxxseSitSEHck014Cg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T23:43:33.596157Z","bundle_sha256":"8b5148447a1fd61bfa74a151eff2d8663b2df11644145750b0db61705285ac6c"}}