{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:ANGIVP7SP7NB6RKBWK2WSOMZP6","short_pith_number":"pith:ANGIVP7S","canonical_record":{"source":{"id":"1901.05244","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2019-01-16T11:56:28Z","cross_cats_sorted":[],"title_canon_sha256":"8c2246b33caeeb30d9244c97fe2276420abeff3961692f408b44518b0b3c77b0","abstract_canon_sha256":"a4a39d2db7d5862b98227c49216aa540e7e7a7770ec6fbb85afbbe778e2722d0"},"schema_version":"1.0"},"canonical_sha256":"034c8abff27fda1f4541b2b56939997fb58696927e2e409db31073120836adab","source":{"kind":"arxiv","id":"1901.05244","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1901.05244","created_at":"2026-07-04T23:51:38Z"},{"alias_kind":"arxiv_version","alias_value":"1901.05244v1","created_at":"2026-07-04T23:51:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1901.05244","created_at":"2026-07-04T23:51:38Z"},{"alias_kind":"pith_short_12","alias_value":"ANGIVP7SP7NB","created_at":"2026-07-04T23:51:38Z"},{"alias_kind":"pith_short_16","alias_value":"ANGIVP7SP7NB6RKB","created_at":"2026-07-04T23:51:38Z"},{"alias_kind":"pith_short_8","alias_value":"ANGIVP7S","created_at":"2026-07-04T23:51:38Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:ANGIVP7SP7NB6RKBWK2WSOMZP6","target":"record","payload":{"canonical_record":{"source":{"id":"1901.05244","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2019-01-16T11:56:28Z","cross_cats_sorted":[],"title_canon_sha256":"8c2246b33caeeb30d9244c97fe2276420abeff3961692f408b44518b0b3c77b0","abstract_canon_sha256":"a4a39d2db7d5862b98227c49216aa540e7e7a7770ec6fbb85afbbe778e2722d0"},"schema_version":"1.0"},"canonical_sha256":"034c8abff27fda1f4541b2b56939997fb58696927e2e409db31073120836adab","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T23:51:38.658561Z","signature_b64":"f9/gRPFa6QP6mTAFiwNaHb5mkA0V466jPDyMNYd0xkgQbUygH5JTVYKOamy7KaHq4IllwDYr8xwuW/439gkiCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"034c8abff27fda1f4541b2b56939997fb58696927e2e409db31073120836adab","last_reissued_at":"2026-07-04T23:51:38.658088Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T23:51:38.658088Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1901.05244","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":"2026-07-04T23:51:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ltfQXgHw49yrpEvTYheCTu1zBYks71KogcqNQKYbydhwKdPqvbG+67HNOKD14BvtJEBLN67iBWOXEiqOnZG6DA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-09T22:34:38.803468Z"},"content_sha256":"214224e06b9d0388166faa1c85737a122c337f3f7c12720bbe345be2a66f1b6c","schema_version":"1.0","event_id":"sha256:214224e06b9d0388166faa1c85737a122c337f3f7c12720bbe345be2a66f1b6c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:ANGIVP7SP7NB6RKBWK2WSOMZP6","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Power Corrections to Pion Transition Form Factor in Perturbative QCD Approach","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Ying Li, Yue-Long Shen, Zhi-Tian Zou","submitted_at":"2019-01-16T11:56:28Z","abstract_excerpt":"In this paper we calculate the power corrections to the pion transition form factor within the framework of perturbative QCD approach on the basis of $k_T$ factorization. The power suppressed contributions from higher twist pion wave functions and the hadronic structure of photon are investigated. We find that there exists strong cancellation between the two kinds contributions, thus the total power corrections considered currently are very small, and the prediction of the leading power contribution with joint resummation improved perturbative QCD approach is almost unchanged. This result conf"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1901.05244","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/1901.05244/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":"2026-07-04T23:51:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qirc9MlhG/zp18yweG2jfTJrrhFMwyEBHxLX+DJYv9tUWZyrKGMaR3Bsa4ET5iHoW+jlEnMglCwpc98E7ZaDBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-09T22:34:38.803969Z"},"content_sha256":"f9bceb350094e01312f02acf5e84069bdca375cc9453cc2c907ca6d5ef79da66","schema_version":"1.0","event_id":"sha256:f9bceb350094e01312f02acf5e84069bdca375cc9453cc2c907ca6d5ef79da66"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ANGIVP7SP7NB6RKBWK2WSOMZP6/bundle.json","state_url":"https://pith.science/pith/ANGIVP7SP7NB6RKBWK2WSOMZP6/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ANGIVP7SP7NB6RKBWK2WSOMZP6/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":"2026-07-09T22:34:38Z","links":{"resolver":"https://pith.science/pith/ANGIVP7SP7NB6RKBWK2WSOMZP6","bundle":"https://pith.science/pith/ANGIVP7SP7NB6RKBWK2WSOMZP6/bundle.json","state":"https://pith.science/pith/ANGIVP7SP7NB6RKBWK2WSOMZP6/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ANGIVP7SP7NB6RKBWK2WSOMZP6/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:ANGIVP7SP7NB6RKBWK2WSOMZP6","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":"a4a39d2db7d5862b98227c49216aa540e7e7a7770ec6fbb85afbbe778e2722d0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2019-01-16T11:56:28Z","title_canon_sha256":"8c2246b33caeeb30d9244c97fe2276420abeff3961692f408b44518b0b3c77b0"},"schema_version":"1.0","source":{"id":"1901.05244","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1901.05244","created_at":"2026-07-04T23:51:38Z"},{"alias_kind":"arxiv_version","alias_value":"1901.05244v1","created_at":"2026-07-04T23:51:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1901.05244","created_at":"2026-07-04T23:51:38Z"},{"alias_kind":"pith_short_12","alias_value":"ANGIVP7SP7NB","created_at":"2026-07-04T23:51:38Z"},{"alias_kind":"pith_short_16","alias_value":"ANGIVP7SP7NB6RKB","created_at":"2026-07-04T23:51:38Z"},{"alias_kind":"pith_short_8","alias_value":"ANGIVP7S","created_at":"2026-07-04T23:51:38Z"}],"graph_snapshots":[{"event_id":"sha256:f9bceb350094e01312f02acf5e84069bdca375cc9453cc2c907ca6d5ef79da66","target":"graph","created_at":"2026-07-04T23:51:38Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/1901.05244/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In this paper we calculate the power corrections to the pion transition form factor within the framework of perturbative QCD approach on the basis of $k_T$ factorization. The power suppressed contributions from higher twist pion wave functions and the hadronic structure of photon are investigated. We find that there exists strong cancellation between the two kinds contributions, thus the total power corrections considered currently are very small, and the prediction of the leading power contribution with joint resummation improved perturbative QCD approach is almost unchanged. This result conf","authors_text":"Ying Li, Yue-Long Shen, Zhi-Tian Zou","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2019-01-16T11:56:28Z","title":"Power Corrections to Pion Transition Form Factor in Perturbative QCD Approach"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1901.05244","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":"sha256:214224e06b9d0388166faa1c85737a122c337f3f7c12720bbe345be2a66f1b6c","target":"record","created_at":"2026-07-04T23:51:38Z","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":"a4a39d2db7d5862b98227c49216aa540e7e7a7770ec6fbb85afbbe778e2722d0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2019-01-16T11:56:28Z","title_canon_sha256":"8c2246b33caeeb30d9244c97fe2276420abeff3961692f408b44518b0b3c77b0"},"schema_version":"1.0","source":{"id":"1901.05244","kind":"arxiv","version":1}},"canonical_sha256":"034c8abff27fda1f4541b2b56939997fb58696927e2e409db31073120836adab","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"034c8abff27fda1f4541b2b56939997fb58696927e2e409db31073120836adab","first_computed_at":"2026-07-04T23:51:38.658088Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T23:51:38.658088Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"f9/gRPFa6QP6mTAFiwNaHb5mkA0V466jPDyMNYd0xkgQbUygH5JTVYKOamy7KaHq4IllwDYr8xwuW/439gkiCA==","signature_status":"signed_v1","signed_at":"2026-07-04T23:51:38.658561Z","signed_message":"canonical_sha256_bytes"},"source_id":"1901.05244","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:214224e06b9d0388166faa1c85737a122c337f3f7c12720bbe345be2a66f1b6c","sha256:f9bceb350094e01312f02acf5e84069bdca375cc9453cc2c907ca6d5ef79da66"],"state_sha256":"19ae0422e3a6d50f3aea6088724c2042ddcf3bb475dcd6b7a810cd21c8f875a9"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"G1lXtJFenBy+tyFQND5Iv/9ZvGXT6r+7IQdVs6aRBqmt5UlzBvmxbuWTJz7FGnG7Z2EZn/oUggzYL7/J9yVjAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-09T22:34:38.806163Z","bundle_sha256":"475996af3a4b4c7ace5ff6870737958d3999ba90728fc8d90ae4b44a5f9439c1"}}