{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:LKTXU6LYG6DM5XD6WS2FOD7KJ2","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":"7f5eed6a38e9517a29101534652028feb6605a0eaf99f9d5eef2969154b48e71","cross_cats_sorted":["hep-ex","nucl-ex","nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2015-04-10T16:40:52Z","title_canon_sha256":"f8fb16342eafa786fdd3ed063af6cdc15d727a9a3b5e9acc0d9eb091a066ca39"},"schema_version":"1.0","source":{"id":"1504.02733","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1504.02733","created_at":"2026-05-18T01:29:02Z"},{"alias_kind":"arxiv_version","alias_value":"1504.02733v1","created_at":"2026-05-18T01:29:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1504.02733","created_at":"2026-05-18T01:29:02Z"},{"alias_kind":"pith_short_12","alias_value":"LKTXU6LYG6DM","created_at":"2026-05-18T12:29:29Z"},{"alias_kind":"pith_short_16","alias_value":"LKTXU6LYG6DM5XD6","created_at":"2026-05-18T12:29:29Z"},{"alias_kind":"pith_short_8","alias_value":"LKTXU6LY","created_at":"2026-05-18T12:29:29Z"}],"graph_snapshots":[{"event_id":"sha256:5772643e4038bf3160828f866bd2f777b0068804db1795731b4cc2ce0f9e5482","target":"graph","created_at":"2026-05-18T01:29:02Z","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":"We investigate the potentialities offered by the study of lepton-pair production in ultraperipheral collisions at a fixed-target experiment using the proton and ion LHC beams. In these collisions, exclusive or semi-exclusive lepton-pair production can be used as luminosity monitor as well as a check of the equivalent-photon approximation, via the measurement of the Bethe-Heitler cross section. It can also serve as a probe of the inner hadron structure via the measurement of the lepton-pair azimuthal asymmetry which is sensitive to the timelike virtual Compton scattering. We also briefly discus","authors_text":"J.P. Lansberg, J. Wagner, L. Szymanowski","cross_cats":["hep-ex","nucl-ex","nucl-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2015-04-10T16:40:52Z","title":"Lepton-pair production in ultraperipheral collisions at AFTER@LHC"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1504.02733","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":"sha256:2614ab73db9c327be92f62232982fc1ac9cee76284df59b0a1382b254139e6c2","target":"record","created_at":"2026-05-18T01:29:02Z","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":"7f5eed6a38e9517a29101534652028feb6605a0eaf99f9d5eef2969154b48e71","cross_cats_sorted":["hep-ex","nucl-ex","nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2015-04-10T16:40:52Z","title_canon_sha256":"f8fb16342eafa786fdd3ed063af6cdc15d727a9a3b5e9acc0d9eb091a066ca39"},"schema_version":"1.0","source":{"id":"1504.02733","kind":"arxiv","version":1}},"canonical_sha256":"5aa77a79783786cedc7eb4b4570fea4e9c48419f137246e46e837db94e021096","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5aa77a79783786cedc7eb4b4570fea4e9c48419f137246e46e837db94e021096","first_computed_at":"2026-05-18T01:29:02.338119Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:29:02.338119Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Fhtq/9MRBJ8Aa0ltdd2RP6Bhgzt0gZuHHjL0jVtG67qE13lO/FT5qQu1O3NIlAcwjaXIqqhzg2kafLwl8cVdDA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:29:02.338791Z","signed_message":"canonical_sha256_bytes"},"source_id":"1504.02733","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2614ab73db9c327be92f62232982fc1ac9cee76284df59b0a1382b254139e6c2","sha256:5772643e4038bf3160828f866bd2f777b0068804db1795731b4cc2ce0f9e5482"],"state_sha256":"c5a666007d49e8a6cb822ce0ceb335a0db15fa5363b294d28a3e39f370ff2ad5"}