{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:DAK64ZNX7HBXU6WWJ43LPVATGV","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":"67ce98cb48ff1841df3d5bf1b44daba1f1c9ba11f755d3151df5872afab9e719","cross_cats_sorted":["nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2015-09-04T17:37:01Z","title_canon_sha256":"e09b73a108d3f9528c94e943e250435a6333ca7bd879391d11b820d6a5666cde"},"schema_version":"1.0","source":{"id":"1509.01536","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1509.01536","created_at":"2026-05-18T01:27:00Z"},{"alias_kind":"arxiv_version","alias_value":"1509.01536v1","created_at":"2026-05-18T01:27:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1509.01536","created_at":"2026-05-18T01:27:00Z"},{"alias_kind":"pith_short_12","alias_value":"DAK64ZNX7HBX","created_at":"2026-05-18T12:29:17Z"},{"alias_kind":"pith_short_16","alias_value":"DAK64ZNX7HBXU6WW","created_at":"2026-05-18T12:29:17Z"},{"alias_kind":"pith_short_8","alias_value":"DAK64ZNX","created_at":"2026-05-18T12:29:17Z"}],"graph_snapshots":[{"event_id":"sha256:919fc75d13405414530ecea40136a3abeac93c7e6cf445368287f1c5fffc8457","target":"graph","created_at":"2026-05-18T01:27:00Z","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":"Considering single-meson photo- and electroproduction off a baryon, it is shown how to restore local gauge invariance that was broken by replacing standard Feynman-type meson exchange in the t-channel by exchange of a Regge trajectory. This is achieved by constructing a contact current whose four-divergence cancels the gauge-invariance-violating contributions resulting from all states above the base state on the Regge trajectory. To illustrate the procedure, modifications necessary for the process $\\gamma +p \\to K^+ + \\Sigma^{*0}$ are discussed in some detail. We also provide the general expre","authors_text":"Helmut Haberzettl, Jun He, Xiao-Yun Wang","cross_cats":["nucl-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2015-09-04T17:37:01Z","title":"Preserving Local Gauge Invariance with t-Channel Regge Exchange"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1509.01536","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":"sha256:3c7e81aadca408c138dedfca6109a5b73527c90cea77ecb0302c06fd37cdabf3","target":"record","created_at":"2026-05-18T01:27:00Z","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":"67ce98cb48ff1841df3d5bf1b44daba1f1c9ba11f755d3151df5872afab9e719","cross_cats_sorted":["nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2015-09-04T17:37:01Z","title_canon_sha256":"e09b73a108d3f9528c94e943e250435a6333ca7bd879391d11b820d6a5666cde"},"schema_version":"1.0","source":{"id":"1509.01536","kind":"arxiv","version":1}},"canonical_sha256":"1815ee65b7f9c37a7ad64f36b7d413354c556b7c2bacaf90c973294f5698f4d2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1815ee65b7f9c37a7ad64f36b7d413354c556b7c2bacaf90c973294f5698f4d2","first_computed_at":"2026-05-18T01:27:00.023418Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:27:00.023418Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"2RL8Bjf7ho3VRPEE+ZV4C0syY4bo6Xt5IyfIdA0MRzvc5lx/YnrL/K4gLRliqdMvxTkIrKJiwOsU021KYghpCA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:27:00.023987Z","signed_message":"canonical_sha256_bytes"},"source_id":"1509.01536","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3c7e81aadca408c138dedfca6109a5b73527c90cea77ecb0302c06fd37cdabf3","sha256:919fc75d13405414530ecea40136a3abeac93c7e6cf445368287f1c5fffc8457"],"state_sha256":"a2162c18e0f00aebf1c33b25c884c6cedf431de126ef9d2342c8e3633be6fa8f"}