{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:VB2PG4F5B6FXNCEY3TAISIZNLH","short_pith_number":"pith:VB2PG4F5","canonical_record":{"source":{"id":"1104.3364","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2011-04-18T01:19:34Z","cross_cats_sorted":[],"title_canon_sha256":"fbfeb94b0632c4ee06bc94b0ccb38893a465e42c12dca4739f4b38bd0f5b69cc","abstract_canon_sha256":"6fc74965aa7c4ab2e04aa7048eee1371eacfbeb3b2d656f6da611bd30490119f"},"schema_version":"1.0"},"canonical_sha256":"a874f370bd0f8b768898dcc089232d59e2656b893e73aba6df99d2cc30565c6a","source":{"kind":"arxiv","id":"1104.3364","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1104.3364","created_at":"2026-05-18T04:15:38Z"},{"alias_kind":"arxiv_version","alias_value":"1104.3364v3","created_at":"2026-05-18T04:15:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1104.3364","created_at":"2026-05-18T04:15:38Z"},{"alias_kind":"pith_short_12","alias_value":"VB2PG4F5B6FX","created_at":"2026-05-18T12:26:42Z"},{"alias_kind":"pith_short_16","alias_value":"VB2PG4F5B6FXNCEY","created_at":"2026-05-18T12:26:42Z"},{"alias_kind":"pith_short_8","alias_value":"VB2PG4F5","created_at":"2026-05-18T12:26:42Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:VB2PG4F5B6FXNCEY3TAISIZNLH","target":"record","payload":{"canonical_record":{"source":{"id":"1104.3364","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2011-04-18T01:19:34Z","cross_cats_sorted":[],"title_canon_sha256":"fbfeb94b0632c4ee06bc94b0ccb38893a465e42c12dca4739f4b38bd0f5b69cc","abstract_canon_sha256":"6fc74965aa7c4ab2e04aa7048eee1371eacfbeb3b2d656f6da611bd30490119f"},"schema_version":"1.0"},"canonical_sha256":"a874f370bd0f8b768898dcc089232d59e2656b893e73aba6df99d2cc30565c6a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:15:38.871427Z","signature_b64":"tlGzl1/lPCxm016GqwyZxHQMjJH0Si9zSwEjpPXdAShwBkxG2IIhxS4d/+ct3nPv3bdecQv3H8LTICBPAOJZDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a874f370bd0f8b768898dcc089232d59e2656b893e73aba6df99d2cc30565c6a","last_reissued_at":"2026-05-18T04:15:38.870496Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:15:38.870496Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1104.3364","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":"2026-05-18T04:15:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"eXiJHBYM5AcGK+a+lYbqmDpdnk0GsmDEEd/Ks74UTMW+UykjGcQrbephF8LiETyfq/qJh5Em9ZtaA8/u2+PEAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-13T10:28:59.480733Z"},"content_sha256":"bb2b222e7d48e3f667de3f151528fd1e6954f69a6c53499395ad886db08dac61","schema_version":"1.0","event_id":"sha256:bb2b222e7d48e3f667de3f151528fd1e6954f69a6c53499395ad886db08dac61"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:VB2PG4F5B6FXNCEY3TAISIZNLH","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Evolved QCD predictions for the meson-photon transition form factors","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Fu-Guang Cao, Guy F. de Teramond, Stanley J. Brodsky","submitted_at":"2011-04-18T01:19:34Z","abstract_excerpt":"The QCD evolution of the pion distribution amplitude (DA) $\\phi_\\pi(x,Q^2)$ is computed for several commonly used models. Our analysis includes the nonperturbative form predicted by light-front holographic QCD, thus combining the nonperturbative bound state dynamics of the pion with the perturbative ERBL evolution of the pion distribution amplitude. We calculate the meson-photon transition form factors for the $\\pi^0$, $\\eta$ and $\\eta^\\prime$ using the hard-scattering formalism. We point out that a widely-used approximation of replacing $\\phi(x, (1-x) Q)$ with $\\phi(x,Q)$ in the calculations "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1104.3364","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":""},"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":"2026-05-18T04:15:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"eFMp7uvD4yhPEBy5dRZZS7WwSLqZaA/JIhgO+XX1ZM0Zpr8gEDm0dVNQTs1YGz8Xk4wy98/46kUREMPDG1mQCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-13T10:28:59.481193Z"},"content_sha256":"2952f14578a9ce525d4083fc894314104cadf30311237354c27434a647fdbc41","schema_version":"1.0","event_id":"sha256:2952f14578a9ce525d4083fc894314104cadf30311237354c27434a647fdbc41"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/VB2PG4F5B6FXNCEY3TAISIZNLH/bundle.json","state_url":"https://pith.science/pith/VB2PG4F5B6FXNCEY3TAISIZNLH/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/VB2PG4F5B6FXNCEY3TAISIZNLH/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":"2026-08-13T10:28:59Z","links":{"resolver":"https://pith.science/pith/VB2PG4F5B6FXNCEY3TAISIZNLH","bundle":"https://pith.science/pith/VB2PG4F5B6FXNCEY3TAISIZNLH/bundle.json","state":"https://pith.science/pith/VB2PG4F5B6FXNCEY3TAISIZNLH/state.json","well_known_bundle":"https://pith.science/.well-known/pith/VB2PG4F5B6FXNCEY3TAISIZNLH/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:VB2PG4F5B6FXNCEY3TAISIZNLH","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":"6fc74965aa7c4ab2e04aa7048eee1371eacfbeb3b2d656f6da611bd30490119f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2011-04-18T01:19:34Z","title_canon_sha256":"fbfeb94b0632c4ee06bc94b0ccb38893a465e42c12dca4739f4b38bd0f5b69cc"},"schema_version":"1.0","source":{"id":"1104.3364","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1104.3364","created_at":"2026-05-18T04:15:38Z"},{"alias_kind":"arxiv_version","alias_value":"1104.3364v3","created_at":"2026-05-18T04:15:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1104.3364","created_at":"2026-05-18T04:15:38Z"},{"alias_kind":"pith_short_12","alias_value":"VB2PG4F5B6FX","created_at":"2026-05-18T12:26:42Z"},{"alias_kind":"pith_short_16","alias_value":"VB2PG4F5B6FXNCEY","created_at":"2026-05-18T12:26:42Z"},{"alias_kind":"pith_short_8","alias_value":"VB2PG4F5","created_at":"2026-05-18T12:26:42Z"}],"graph_snapshots":[{"event_id":"sha256:2952f14578a9ce525d4083fc894314104cadf30311237354c27434a647fdbc41","target":"graph","created_at":"2026-05-18T04:15:38Z","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":"The QCD evolution of the pion distribution amplitude (DA) $\\phi_\\pi(x,Q^2)$ is computed for several commonly used models. Our analysis includes the nonperturbative form predicted by light-front holographic QCD, thus combining the nonperturbative bound state dynamics of the pion with the perturbative ERBL evolution of the pion distribution amplitude. We calculate the meson-photon transition form factors for the $\\pi^0$, $\\eta$ and $\\eta^\\prime$ using the hard-scattering formalism. We point out that a widely-used approximation of replacing $\\phi(x, (1-x) Q)$ with $\\phi(x,Q)$ in the calculations ","authors_text":"Fu-Guang Cao, Guy F. de Teramond, Stanley J. Brodsky","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2011-04-18T01:19:34Z","title":"Evolved QCD predictions for the meson-photon transition form factors"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1104.3364","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:bb2b222e7d48e3f667de3f151528fd1e6954f69a6c53499395ad886db08dac61","target":"record","created_at":"2026-05-18T04:15:38Z","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":"6fc74965aa7c4ab2e04aa7048eee1371eacfbeb3b2d656f6da611bd30490119f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2011-04-18T01:19:34Z","title_canon_sha256":"fbfeb94b0632c4ee06bc94b0ccb38893a465e42c12dca4739f4b38bd0f5b69cc"},"schema_version":"1.0","source":{"id":"1104.3364","kind":"arxiv","version":3}},"canonical_sha256":"a874f370bd0f8b768898dcc089232d59e2656b893e73aba6df99d2cc30565c6a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a874f370bd0f8b768898dcc089232d59e2656b893e73aba6df99d2cc30565c6a","first_computed_at":"2026-05-18T04:15:38.870496Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:15:38.870496Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"tlGzl1/lPCxm016GqwyZxHQMjJH0Si9zSwEjpPXdAShwBkxG2IIhxS4d/+ct3nPv3bdecQv3H8LTICBPAOJZDw==","signature_status":"signed_v1","signed_at":"2026-05-18T04:15:38.871427Z","signed_message":"canonical_sha256_bytes"},"source_id":"1104.3364","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:bb2b222e7d48e3f667de3f151528fd1e6954f69a6c53499395ad886db08dac61","sha256:2952f14578a9ce525d4083fc894314104cadf30311237354c27434a647fdbc41"],"state_sha256":"63e193d5932c66fde8c4b4d4e3acdecc709d0a5daf838b2d4726c9f151fa7e16"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LebIcfLFz1HRL6Pk7lTZQ0YuwoOzM1Q6WO9vchBvUvUgFutkcx3094eQcy6VVIj/G8v8kAn6Oznom8olhyoCDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-13T10:28:59.486078Z","bundle_sha256":"e3804f56a24ae5a3ee72149d6fddc73ce0059ea59b8d79d45a17f92fea308b7d"}}