{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2003:OKIINRKSJOCYPA2DL5WVV2GLWE","short_pith_number":"pith:OKIINRKS","schema_version":"1.0","canonical_sha256":"729086c5524b858783435f6d5ae8cbb119aec58837dbf15d3c500f05118b8025","source":{"kind":"arxiv","id":"nucl-th/0310041","version":2},"attestation_state":"computed","paper":{"title":"Electroproduction of nucleon resonances","license":"","headline":"","cross_cats":["hep-ph"],"primary_cat":"nucl-th","authors_text":"A. Vassallo, D. Drechsel, E. Santopinto, L. Tiator, M.M. Giannini, S. Kamalov","submitted_at":"2003-10-14T10:10:21Z","abstract_excerpt":"The unitary isobar model MAID has been extended and used for a partial wave analysis of pion photo- and electroproduction in the resonance region W < 2 GeV. Older data from the world data base and more recent experimental results from Mainz, Bates, Bonn and JLab for Q^2 up to 4.0 (GeV/c)^2 have been analyzed and the Q^2 dependence of the helicity amplitudes have been extracted for a series of four star resonances. We compare single-Q^2 analyses with a superglobal fit in a new parametrization of Maid2003 together with predictions of the hypercentral constituent quark model. As a result we find "},"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":"nucl-th/0310041","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"nucl-th","submitted_at":"2003-10-14T10:10:21Z","cross_cats_sorted":["hep-ph"],"title_canon_sha256":"0c0c89b460389758c24002786a158abcc15b53a0d96c827c099b44b2b91f4499","abstract_canon_sha256":"610d3e50b0d8b8b5fe0136df75493a26039e6c1b1a2fe7b2b456e4a50ec8b2f0"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:38:13.853923Z","signature_b64":"DmDIEtflw2i5ScUouvQGk4F8zEHHwTTSD4qldnUz+G42Ukr+0wyl+Rz+5ami/9/pWoFpyR5xTodlLUdFCpq1AA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"729086c5524b858783435f6d5ae8cbb119aec58837dbf15d3c500f05118b8025","last_reissued_at":"2026-05-18T01:38:13.853266Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:38:13.853266Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Electroproduction of nucleon resonances","license":"","headline":"","cross_cats":["hep-ph"],"primary_cat":"nucl-th","authors_text":"A. Vassallo, D. Drechsel, E. Santopinto, L. Tiator, M.M. Giannini, S. Kamalov","submitted_at":"2003-10-14T10:10:21Z","abstract_excerpt":"The unitary isobar model MAID has been extended and used for a partial wave analysis of pion photo- and electroproduction in the resonance region W < 2 GeV. Older data from the world data base and more recent experimental results from Mainz, Bates, Bonn and JLab for Q^2 up to 4.0 (GeV/c)^2 have been analyzed and the Q^2 dependence of the helicity amplitudes have been extracted for a series of four star resonances. We compare single-Q^2 analyses with a superglobal fit in a new parametrization of Maid2003 together with predictions of the hypercentral constituent quark model. As a result we find "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"nucl-th/0310041","kind":"arxiv","version":2},"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"},"aliases":[{"alias_kind":"arxiv","alias_value":"nucl-th/0310041","created_at":"2026-05-18T01:38:13.853359+00:00"},{"alias_kind":"arxiv_version","alias_value":"nucl-th/0310041v2","created_at":"2026-05-18T01:38:13.853359+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.nucl-th/0310041","created_at":"2026-05-18T01:38:13.853359+00:00"},{"alias_kind":"pith_short_12","alias_value":"OKIINRKSJOCY","created_at":"2026-05-18T12:25:52.051335+00:00"},{"alias_kind":"pith_short_16","alias_value":"OKIINRKSJOCYPA2D","created_at":"2026-05-18T12:25:52.051335+00:00"},{"alias_kind":"pith_short_8","alias_value":"OKIINRKS","created_at":"2026-05-18T12:25:52.051335+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/OKIINRKSJOCYPA2DL5WVV2GLWE","json":"https://pith.science/pith/OKIINRKSJOCYPA2DL5WVV2GLWE.json","graph_json":"https://pith.science/api/pith-number/OKIINRKSJOCYPA2DL5WVV2GLWE/graph.json","events_json":"https://pith.science/api/pith-number/OKIINRKSJOCYPA2DL5WVV2GLWE/events.json","paper":"https://pith.science/paper/OKIINRKS"},"agent_actions":{"view_html":"https://pith.science/pith/OKIINRKSJOCYPA2DL5WVV2GLWE","download_json":"https://pith.science/pith/OKIINRKSJOCYPA2DL5WVV2GLWE.json","view_paper":"https://pith.science/paper/OKIINRKS","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=nucl-th/0310041&json=true","fetch_graph":"https://pith.science/api/pith-number/OKIINRKSJOCYPA2DL5WVV2GLWE/graph.json","fetch_events":"https://pith.science/api/pith-number/OKIINRKSJOCYPA2DL5WVV2GLWE/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/OKIINRKSJOCYPA2DL5WVV2GLWE/action/timestamp_anchor","attest_storage":"https://pith.science/pith/OKIINRKSJOCYPA2DL5WVV2GLWE/action/storage_attestation","attest_author":"https://pith.science/pith/OKIINRKSJOCYPA2DL5WVV2GLWE/action/author_attestation","sign_citation":"https://pith.science/pith/OKIINRKSJOCYPA2DL5WVV2GLWE/action/citation_signature","submit_replication":"https://pith.science/pith/OKIINRKSJOCYPA2DL5WVV2GLWE/action/replication_record"}},"created_at":"2026-05-18T01:38:13.853359+00:00","updated_at":"2026-05-18T01:38:13.853359+00:00"}