{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2001:IX2VOBWC3AK7BAEXGEKZ4KFYOZ","short_pith_number":"pith:IX2VOBWC","canonical_record":{"source":{"id":"hep-ph/0106329","kind":"arxiv","version":3},"metadata":{"license":"","primary_cat":"hep-ph","submitted_at":"2001-06-28T14:07:49Z","cross_cats_sorted":[],"title_canon_sha256":"3e9d0038ee5cd7be601d336cfe83ea743d51bd4e7aa7b7b79af4e2777d098dda","abstract_canon_sha256":"932d02024bef3ad1e43d65082273a280cfa4295edc56f3c1de45f6a3808ccc1a"},"schema_version":"1.0"},"canonical_sha256":"45f55706c2d815f0809731159e28b8765fd3c8980fe5c58a586190f1a6d6b2a9","source":{"kind":"arxiv","id":"hep-ph/0106329","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ph/0106329","created_at":"2026-07-04T15:35:44Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/0106329v3","created_at":"2026-07-04T15:35:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/0106329","created_at":"2026-07-04T15:35:44Z"},{"alias_kind":"pith_short_12","alias_value":"IX2VOBWC3AK7","created_at":"2026-07-04T15:35:44Z"},{"alias_kind":"pith_short_16","alias_value":"IX2VOBWC3AK7BAEX","created_at":"2026-07-04T15:35:44Z"},{"alias_kind":"pith_short_8","alias_value":"IX2VOBWC","created_at":"2026-07-04T15:35:44Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2001:IX2VOBWC3AK7BAEXGEKZ4KFYOZ","target":"record","payload":{"canonical_record":{"source":{"id":"hep-ph/0106329","kind":"arxiv","version":3},"metadata":{"license":"","primary_cat":"hep-ph","submitted_at":"2001-06-28T14:07:49Z","cross_cats_sorted":[],"title_canon_sha256":"3e9d0038ee5cd7be601d336cfe83ea743d51bd4e7aa7b7b79af4e2777d098dda","abstract_canon_sha256":"932d02024bef3ad1e43d65082273a280cfa4295edc56f3c1de45f6a3808ccc1a"},"schema_version":"1.0"},"canonical_sha256":"45f55706c2d815f0809731159e28b8765fd3c8980fe5c58a586190f1a6d6b2a9","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T15:35:44.633894Z","signature_b64":"t6uDCcVssqaFEjqhRBfS8HPzWa3WNREdcruRUHaDVPpV14g8JLJTAj2tvfHjG2l/WSqqPnT7SAQzMM9XixUIAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"45f55706c2d815f0809731159e28b8765fd3c8980fe5c58a586190f1a6d6b2a9","last_reissued_at":"2026-07-04T15:35:44.633390Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T15:35:44.633390Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"hep-ph/0106329","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-04T15:35:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9h+PmiEua2v51LivbTLh2sEGODfi6lsWkNwvvV6U90iro3ocf883tVDAqdS1MDBNaHr7GpL8HctBUOYTAQ2BCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-13T10:26:50.445731Z"},"content_sha256":"30d5b6ce7e82ecfe68041de133b07ddb06cf85164dff1167278d3575fc5d5adb","schema_version":"1.0","event_id":"sha256:30d5b6ce7e82ecfe68041de133b07ddb06cf85164dff1167278d3575fc5d5adb"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2001:IX2VOBWC3AK7BAEXGEKZ4KFYOZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Twist-4 photon helicity-flip amplitude in DVCS on a nucleon in the Wandzura-Wilczek approximation","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"L. Mankiewicz, N. Kivel","submitted_at":"2001-06-28T14:07:49Z","abstract_excerpt":"We computed twist-4 part of the photon spin-flip amplitude in deeply virtual Compton scattering on a nucleon in the Wandzura-Wilczek approximation. We found a factorizable contribution, which arises from photon scattering on quarks with non-zero angular momentum along the collision axis. As the genuine twist-2 amplitude arises at the NLO, for moderate virtualities of the hard photon, $Q^2 \\le 10$ GeV$^2$, kinematical twist-4 correction can give numerically important contribution to the photon helicity-flip amplitude."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/0106329","kind":"arxiv","version":3},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/hep-ph/0106329/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-04T15:35:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"t5lEcCwDE6GbYiBY6PczZBZnqqr2bV4tGMvgdoeSgYLwbZ4CIC1tawudbwj+3kHKgaV/Q0UdHVNNOWjOvDB0Aw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-13T10:26:50.446877Z"},"content_sha256":"29e31d7abb05f1a8a7e67135052e6e8171e157b48281dca2ec6c1c45808ed461","schema_version":"1.0","event_id":"sha256:29e31d7abb05f1a8a7e67135052e6e8171e157b48281dca2ec6c1c45808ed461"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/IX2VOBWC3AK7BAEXGEKZ4KFYOZ/bundle.json","state_url":"https://pith.science/pith/IX2VOBWC3AK7BAEXGEKZ4KFYOZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/IX2VOBWC3AK7BAEXGEKZ4KFYOZ/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":"2026-08-13T10:26:50Z","links":{"resolver":"https://pith.science/pith/IX2VOBWC3AK7BAEXGEKZ4KFYOZ","bundle":"https://pith.science/pith/IX2VOBWC3AK7BAEXGEKZ4KFYOZ/bundle.json","state":"https://pith.science/pith/IX2VOBWC3AK7BAEXGEKZ4KFYOZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/IX2VOBWC3AK7BAEXGEKZ4KFYOZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2001:IX2VOBWC3AK7BAEXGEKZ4KFYOZ","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":"932d02024bef3ad1e43d65082273a280cfa4295edc56f3c1de45f6a3808ccc1a","cross_cats_sorted":[],"license":"","primary_cat":"hep-ph","submitted_at":"2001-06-28T14:07:49Z","title_canon_sha256":"3e9d0038ee5cd7be601d336cfe83ea743d51bd4e7aa7b7b79af4e2777d098dda"},"schema_version":"1.0","source":{"id":"hep-ph/0106329","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ph/0106329","created_at":"2026-07-04T15:35:44Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/0106329v3","created_at":"2026-07-04T15:35:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/0106329","created_at":"2026-07-04T15:35:44Z"},{"alias_kind":"pith_short_12","alias_value":"IX2VOBWC3AK7","created_at":"2026-07-04T15:35:44Z"},{"alias_kind":"pith_short_16","alias_value":"IX2VOBWC3AK7BAEX","created_at":"2026-07-04T15:35:44Z"},{"alias_kind":"pith_short_8","alias_value":"IX2VOBWC","created_at":"2026-07-04T15:35:44Z"}],"graph_snapshots":[{"event_id":"sha256:29e31d7abb05f1a8a7e67135052e6e8171e157b48281dca2ec6c1c45808ed461","target":"graph","created_at":"2026-07-04T15:35:44Z","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/0106329/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We computed twist-4 part of the photon spin-flip amplitude in deeply virtual Compton scattering on a nucleon in the Wandzura-Wilczek approximation. We found a factorizable contribution, which arises from photon scattering on quarks with non-zero angular momentum along the collision axis. As the genuine twist-2 amplitude arises at the NLO, for moderate virtualities of the hard photon, $Q^2 \\le 10$ GeV$^2$, kinematical twist-4 correction can give numerically important contribution to the photon helicity-flip amplitude.","authors_text":"L. Mankiewicz, N. Kivel","cross_cats":[],"headline":"","license":"","primary_cat":"hep-ph","submitted_at":"2001-06-28T14:07:49Z","title":"Twist-4 photon helicity-flip amplitude in DVCS on a nucleon in the Wandzura-Wilczek approximation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/0106329","kind":"arxiv","version":3},"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":"sha256:30d5b6ce7e82ecfe68041de133b07ddb06cf85164dff1167278d3575fc5d5adb","target":"record","created_at":"2026-07-04T15:35:44Z","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":"932d02024bef3ad1e43d65082273a280cfa4295edc56f3c1de45f6a3808ccc1a","cross_cats_sorted":[],"license":"","primary_cat":"hep-ph","submitted_at":"2001-06-28T14:07:49Z","title_canon_sha256":"3e9d0038ee5cd7be601d336cfe83ea743d51bd4e7aa7b7b79af4e2777d098dda"},"schema_version":"1.0","source":{"id":"hep-ph/0106329","kind":"arxiv","version":3}},"canonical_sha256":"45f55706c2d815f0809731159e28b8765fd3c8980fe5c58a586190f1a6d6b2a9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"45f55706c2d815f0809731159e28b8765fd3c8980fe5c58a586190f1a6d6b2a9","first_computed_at":"2026-07-04T15:35:44.633390Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T15:35:44.633390Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"t6uDCcVssqaFEjqhRBfS8HPzWa3WNREdcruRUHaDVPpV14g8JLJTAj2tvfHjG2l/WSqqPnT7SAQzMM9XixUIAQ==","signature_status":"signed_v1","signed_at":"2026-07-04T15:35:44.633894Z","signed_message":"canonical_sha256_bytes"},"source_id":"hep-ph/0106329","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:30d5b6ce7e82ecfe68041de133b07ddb06cf85164dff1167278d3575fc5d5adb","sha256:29e31d7abb05f1a8a7e67135052e6e8171e157b48281dca2ec6c1c45808ed461"],"state_sha256":"ca11db8e8bc5343537d74f414e4cac6dc0212885a0173b25deeeccc44b66abcd"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XYPfOEAHzj2GhxGJWy4i/wa9+yGgv2G5ONrnYGg/ygVxVdMU3YkTHQLlTdHZERquHK5uk/Zipm0gm1nstKtTCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-13T10:26:50.458812Z","bundle_sha256":"aa7f5b3ef8f36fd2219f97a2d5e8bc35663ac1c36f8ca29c3df6c79b3f09694d"}}