{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2023:K3F5I2X4DZD76T7PEN2UE2ISAA","short_pith_number":"pith:K3F5I2X4","schema_version":"1.0","canonical_sha256":"56cbd46afc1e47ff4fef237542691200224ef06eed910fb8865d49e9ad26203a","source":{"kind":"arxiv","id":"2304.03704","version":1},"attestation_state":"computed","paper":{"title":"Prospects for GPDs extraction with Double DVCS","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex","nucl-ex","nucl-th"],"primary_cat":"hep-ph","authors_text":"B. Pire, J. Wagner, K. Deja, P. Sznajder, V. Martinez-Fernandez","submitted_at":"2023-04-07T15:40:32Z","abstract_excerpt":"Double deeply virtual Compton scattering (DDVCS) is the process where an electron scatters off a nucleon and produces a lepton pair. The main advantage of this process in contrast with deeply virtual and timelike Compton scatterings (DVCS and TCS) is the possibility of directly measuring GPDs for $x\\neq\\pm\\xi$ at leading order in $\\alpha_s$ (LO). We present a new calculation of the DDVCS amplitude based on the methods developed by R. Kleiss and W. J. Stirling in the 1980s. These techniques produce expressions for amplitudes that are perfectly suited for implementation in numerical simulations."},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"2304.03704","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2023-04-07T15:40:32Z","cross_cats_sorted":["hep-ex","nucl-ex","nucl-th"],"title_canon_sha256":"4bcd735f4e2ed482067aea2ad6beeb9fedf22e131216384ea26c0c6ca480bc34","abstract_canon_sha256":"1169ce3ce605f33f190b16df3b6b196cacd13f3e52208b3cfeda9da9732b4278"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T05:59:24.532401Z","signature_b64":"vn5r20/uh1+EBXsp2M/KpfRsE6iYlb+oYQd6Ynrf1gyIK3bLETlYmYZSXSO9WoigaHJzsUAyNGcqbasPFImvAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"56cbd46afc1e47ff4fef237542691200224ef06eed910fb8865d49e9ad26203a","last_reissued_at":"2026-07-05T05:59:24.531956Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T05:59:24.531956Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Prospects for GPDs extraction with Double DVCS","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex","nucl-ex","nucl-th"],"primary_cat":"hep-ph","authors_text":"B. Pire, J. Wagner, K. Deja, P. Sznajder, V. Martinez-Fernandez","submitted_at":"2023-04-07T15:40:32Z","abstract_excerpt":"Double deeply virtual Compton scattering (DDVCS) is the process where an electron scatters off a nucleon and produces a lepton pair. The main advantage of this process in contrast with deeply virtual and timelike Compton scatterings (DVCS and TCS) is the possibility of directly measuring GPDs for $x\\neq\\pm\\xi$ at leading order in $\\alpha_s$ (LO). We present a new calculation of the DDVCS amplitude based on the methods developed by R. Kleiss and W. J. Stirling in the 1980s. These techniques produce expressions for amplitudes that are perfectly suited for implementation in numerical simulations."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2304.03704","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/2304.03704/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"},"aliases":[{"alias_kind":"arxiv","alias_value":"2304.03704","created_at":"2026-07-05T05:59:24.532013+00:00"},{"alias_kind":"arxiv_version","alias_value":"2304.03704v1","created_at":"2026-07-05T05:59:24.532013+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2304.03704","created_at":"2026-07-05T05:59:24.532013+00:00"},{"alias_kind":"pith_short_12","alias_value":"K3F5I2X4DZD7","created_at":"2026-07-05T05:59:24.532013+00:00"},{"alias_kind":"pith_short_16","alias_value":"K3F5I2X4DZD76T7P","created_at":"2026-07-05T05:59:24.532013+00:00"},{"alias_kind":"pith_short_8","alias_value":"K3F5I2X4","created_at":"2026-07-05T05:59:24.532013+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/K3F5I2X4DZD76T7PEN2UE2ISAA","json":"https://pith.science/pith/K3F5I2X4DZD76T7PEN2UE2ISAA.json","graph_json":"https://pith.science/api/pith-number/K3F5I2X4DZD76T7PEN2UE2ISAA/graph.json","events_json":"https://pith.science/api/pith-number/K3F5I2X4DZD76T7PEN2UE2ISAA/events.json","paper":"https://pith.science/paper/K3F5I2X4"},"agent_actions":{"view_html":"https://pith.science/pith/K3F5I2X4DZD76T7PEN2UE2ISAA","download_json":"https://pith.science/pith/K3F5I2X4DZD76T7PEN2UE2ISAA.json","view_paper":"https://pith.science/paper/K3F5I2X4","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2304.03704&json=true","fetch_graph":"https://pith.science/api/pith-number/K3F5I2X4DZD76T7PEN2UE2ISAA/graph.json","fetch_events":"https://pith.science/api/pith-number/K3F5I2X4DZD76T7PEN2UE2ISAA/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/K3F5I2X4DZD76T7PEN2UE2ISAA/action/timestamp_anchor","attest_storage":"https://pith.science/pith/K3F5I2X4DZD76T7PEN2UE2ISAA/action/storage_attestation","attest_author":"https://pith.science/pith/K3F5I2X4DZD76T7PEN2UE2ISAA/action/author_attestation","sign_citation":"https://pith.science/pith/K3F5I2X4DZD76T7PEN2UE2ISAA/action/citation_signature","submit_replication":"https://pith.science/pith/K3F5I2X4DZD76T7PEN2UE2ISAA/action/replication_record"}},"created_at":"2026-07-05T05:59:24.532013+00:00","updated_at":"2026-07-05T05:59:24.532013+00:00"}