{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2002:SH2AVY4TA27PNIJ3MRRNQKS2PC","short_pith_number":"pith:SH2AVY4T","canonical_record":{"source":{"id":"hep-ph/0203136","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"hep-ph","submitted_at":"2002-03-14T16:55:13Z","cross_cats_sorted":[],"title_canon_sha256":"efdd87b8745db705b3ee36f659fa45c889b546d8c1d31da2f86c60ca7ffa9423","abstract_canon_sha256":"48e449176928fdc9653f78a347ae2370b82c6c4ab15103c56f5793ecf42fbb65"},"schema_version":"1.0"},"canonical_sha256":"91f40ae39306bef6a13b6462d82a5a789f99e6102372c11209f72221a3f5c6e7","source":{"kind":"arxiv","id":"hep-ph/0203136","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ph/0203136","created_at":"2026-05-18T02:36:38Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/0203136v1","created_at":"2026-05-18T02:36:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/0203136","created_at":"2026-05-18T02:36:38Z"},{"alias_kind":"pith_short_12","alias_value":"SH2AVY4TA27P","created_at":"2026-05-18T12:25:51Z"},{"alias_kind":"pith_short_16","alias_value":"SH2AVY4TA27PNIJ3","created_at":"2026-05-18T12:25:51Z"},{"alias_kind":"pith_short_8","alias_value":"SH2AVY4T","created_at":"2026-05-18T12:25:51Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2002:SH2AVY4TA27PNIJ3MRRNQKS2PC","target":"record","payload":{"canonical_record":{"source":{"id":"hep-ph/0203136","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"hep-ph","submitted_at":"2002-03-14T16:55:13Z","cross_cats_sorted":[],"title_canon_sha256":"efdd87b8745db705b3ee36f659fa45c889b546d8c1d31da2f86c60ca7ffa9423","abstract_canon_sha256":"48e449176928fdc9653f78a347ae2370b82c6c4ab15103c56f5793ecf42fbb65"},"schema_version":"1.0"},"canonical_sha256":"91f40ae39306bef6a13b6462d82a5a789f99e6102372c11209f72221a3f5c6e7","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:36:38.344871Z","signature_b64":"IrSrYKT+o/48kJWR614ah/vD45JRLniC0JfGuXuYKfXDcEMhkhkg6Qcy+laNuBotb493lKiR8Wq7Ha0ZwK+2Dw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"91f40ae39306bef6a13b6462d82a5a789f99e6102372c11209f72221a3f5c6e7","last_reissued_at":"2026-05-18T02:36:38.344273Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:36:38.344273Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"hep-ph/0203136","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:36:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+yD4ozeJ96OBE/EnFBBfs/h9jt0fGB8lfZdqoT8D1qI4e+01uJiHehcmsRm4K7qS3ZSxUll+ZSzwz8p1U+2tDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T05:03:56.500153Z"},"content_sha256":"fe9f56834cc9465fc58c5ce116f4db070a9b587992346310fc0c4bf2a0886512","schema_version":"1.0","event_id":"sha256:fe9f56834cc9465fc58c5ce116f4db070a9b587992346310fc0c4bf2a0886512"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2002:SH2AVY4TA27PNIJ3MRRNQKS2PC","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Transition form factors and light-cone distribution amplitudes of pseudoscalar mesons in the chiral quark model","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"A. E. Dorokhov, M. K. Volkov, V. L. Yudichev","submitted_at":"2002-03-14T16:55:13Z","abstract_excerpt":"It is shown that a chiral quark model of the Nambu--Jona-Lasinio type can be used to describe \"soft\"-momenta parts of the amplitudes with large momentum transfer. As a sample, the processes \\gamma^* --> \\gamma (\\pi,\\eta,\\eta') where one of the photons, \\gamma^*, has large space-like virtuality is investigated. The \\gamma^* --> \\gamma (\\pi,\\eta,\\eta')$ transition form factors are calculated for a wide region of transferred momenta. The results are consistent with the calculations performed in the instanton-induced chiral quark model and agree with experimental data. The distribution amplitudes "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/0203136","kind":"arxiv","version":1},"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":"2026-05-18T02:36:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ewYOmHtZKb4eeifYrHKZ8deBDcZw919zInh8kfPG8RBTQMIFElCENAAzneCFlSfUAwiOiUupzocIAZNPnBX7DA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T05:03:56.500529Z"},"content_sha256":"93c2cad1a346455fab3041dc763966a856e5c27d0fbd7e4f63bece23a41b45e3","schema_version":"1.0","event_id":"sha256:93c2cad1a346455fab3041dc763966a856e5c27d0fbd7e4f63bece23a41b45e3"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/SH2AVY4TA27PNIJ3MRRNQKS2PC/bundle.json","state_url":"https://pith.science/pith/SH2AVY4TA27PNIJ3MRRNQKS2PC/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/SH2AVY4TA27PNIJ3MRRNQKS2PC/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":"2026-05-30T05:03:56Z","links":{"resolver":"https://pith.science/pith/SH2AVY4TA27PNIJ3MRRNQKS2PC","bundle":"https://pith.science/pith/SH2AVY4TA27PNIJ3MRRNQKS2PC/bundle.json","state":"https://pith.science/pith/SH2AVY4TA27PNIJ3MRRNQKS2PC/state.json","well_known_bundle":"https://pith.science/.well-known/pith/SH2AVY4TA27PNIJ3MRRNQKS2PC/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2002:SH2AVY4TA27PNIJ3MRRNQKS2PC","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":"48e449176928fdc9653f78a347ae2370b82c6c4ab15103c56f5793ecf42fbb65","cross_cats_sorted":[],"license":"","primary_cat":"hep-ph","submitted_at":"2002-03-14T16:55:13Z","title_canon_sha256":"efdd87b8745db705b3ee36f659fa45c889b546d8c1d31da2f86c60ca7ffa9423"},"schema_version":"1.0","source":{"id":"hep-ph/0203136","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ph/0203136","created_at":"2026-05-18T02:36:38Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/0203136v1","created_at":"2026-05-18T02:36:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/0203136","created_at":"2026-05-18T02:36:38Z"},{"alias_kind":"pith_short_12","alias_value":"SH2AVY4TA27P","created_at":"2026-05-18T12:25:51Z"},{"alias_kind":"pith_short_16","alias_value":"SH2AVY4TA27PNIJ3","created_at":"2026-05-18T12:25:51Z"},{"alias_kind":"pith_short_8","alias_value":"SH2AVY4T","created_at":"2026-05-18T12:25:51Z"}],"graph_snapshots":[{"event_id":"sha256:93c2cad1a346455fab3041dc763966a856e5c27d0fbd7e4f63bece23a41b45e3","target":"graph","created_at":"2026-05-18T02:36:38Z","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":"It is shown that a chiral quark model of the Nambu--Jona-Lasinio type can be used to describe \"soft\"-momenta parts of the amplitudes with large momentum transfer. As a sample, the processes \\gamma^* --> \\gamma (\\pi,\\eta,\\eta') where one of the photons, \\gamma^*, has large space-like virtuality is investigated. The \\gamma^* --> \\gamma (\\pi,\\eta,\\eta')$ transition form factors are calculated for a wide region of transferred momenta. The results are consistent with the calculations performed in the instanton-induced chiral quark model and agree with experimental data. The distribution amplitudes ","authors_text":"A. E. Dorokhov, M. K. Volkov, V. L. Yudichev","cross_cats":[],"headline":"","license":"","primary_cat":"hep-ph","submitted_at":"2002-03-14T16:55:13Z","title":"Transition form factors and light-cone distribution amplitudes of pseudoscalar mesons in the chiral quark model"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/0203136","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:fe9f56834cc9465fc58c5ce116f4db070a9b587992346310fc0c4bf2a0886512","target":"record","created_at":"2026-05-18T02:36:38Z","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":"48e449176928fdc9653f78a347ae2370b82c6c4ab15103c56f5793ecf42fbb65","cross_cats_sorted":[],"license":"","primary_cat":"hep-ph","submitted_at":"2002-03-14T16:55:13Z","title_canon_sha256":"efdd87b8745db705b3ee36f659fa45c889b546d8c1d31da2f86c60ca7ffa9423"},"schema_version":"1.0","source":{"id":"hep-ph/0203136","kind":"arxiv","version":1}},"canonical_sha256":"91f40ae39306bef6a13b6462d82a5a789f99e6102372c11209f72221a3f5c6e7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"91f40ae39306bef6a13b6462d82a5a789f99e6102372c11209f72221a3f5c6e7","first_computed_at":"2026-05-18T02:36:38.344273Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:36:38.344273Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"IrSrYKT+o/48kJWR614ah/vD45JRLniC0JfGuXuYKfXDcEMhkhkg6Qcy+laNuBotb493lKiR8Wq7Ha0ZwK+2Dw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:36:38.344871Z","signed_message":"canonical_sha256_bytes"},"source_id":"hep-ph/0203136","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:fe9f56834cc9465fc58c5ce116f4db070a9b587992346310fc0c4bf2a0886512","sha256:93c2cad1a346455fab3041dc763966a856e5c27d0fbd7e4f63bece23a41b45e3"],"state_sha256":"eab6c3db130849c4367393afc0c825a7309d8efb94194a303506d17ffe6b0bbe"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QHafX+XTNj6CFeQrSgENdxHMPC3UInu/czmdDwEQ7/kxMztZ0xfARWanK0VY5LWg72Xj5AkedBoC+Na2ET/3DQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T05:03:56.502789Z","bundle_sha256":"5f47397f5339bc18053df6bf2b60f707be5c6810420df96e587c70eb680ffd25"}}