{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2016:JYS5WU35EM7FODAW7VGY35Q4D6","short_pith_number":"pith:JYS5WU35","schema_version":"1.0","canonical_sha256":"4e25db537d233e570c16fd4d8df61c1fbbf96358d9144c009e153446b6808779","source":{"kind":"arxiv","id":"1602.05820","version":1},"attestation_state":"computed","paper":{"title":"$\\eta$ MAID-2015: update with new data and new resonances","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["nucl-ex"],"primary_cat":"nucl-th","authors_text":"L. Tiator, M. Ostrick, V.L. Kashevarov","submitted_at":"2016-02-18T14:50:58Z","abstract_excerpt":"Recent data for $\\eta$ and $\\eta\\prime$ photoproduction on protons obtained by the A2 Collaboration at MAMI are presented. The total cross section for $\\eta$ photoproduction demonstrates a cusp at the energy corresponding to the $\\eta\\prime$ threshold. The new data and existing data from GRAAL, CBELSA/TAPS, and CLAS collaborations have been analyzed by an expansion in terms of associated Legendre polynomials. %A Legendre decomposition shows the sensitivity to small partial-wave contributions. The isobar model $\\eta$MAID updated with $\\eta \\prime$ channel and new resonances have been used to fi"},"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":"1602.05820","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2016-02-18T14:50:58Z","cross_cats_sorted":["nucl-ex"],"title_canon_sha256":"c829490d6f90757d2aaa9790fefe607e1cc95155f2736f9caf7b0ca9fcdd7b42","abstract_canon_sha256":"b2c9acd5ba9c76ee7f8e56dcd1dff6792e41967dfc00efd6c8469236c3941ba5"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:20:23.136604Z","signature_b64":"14W/ni7fqapGmoLHTy30PiX1cjHqhBMldhzCA6NjnIiBBm4Ogpu18Jw814xITQsMVT8KhepbdEg1CNnorqQKAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4e25db537d233e570c16fd4d8df61c1fbbf96358d9144c009e153446b6808779","last_reissued_at":"2026-05-18T01:20:23.135978Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:20:23.135978Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"$\\eta$ MAID-2015: update with new data and new resonances","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["nucl-ex"],"primary_cat":"nucl-th","authors_text":"L. Tiator, M. Ostrick, V.L. Kashevarov","submitted_at":"2016-02-18T14:50:58Z","abstract_excerpt":"Recent data for $\\eta$ and $\\eta\\prime$ photoproduction on protons obtained by the A2 Collaboration at MAMI are presented. The total cross section for $\\eta$ photoproduction demonstrates a cusp at the energy corresponding to the $\\eta\\prime$ threshold. The new data and existing data from GRAAL, CBELSA/TAPS, and CLAS collaborations have been analyzed by an expansion in terms of associated Legendre polynomials. %A Legendre decomposition shows the sensitivity to small partial-wave contributions. The isobar model $\\eta$MAID updated with $\\eta \\prime$ channel and new resonances have been used to fi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1602.05820","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":""},"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":"1602.05820","created_at":"2026-05-18T01:20:23.136071+00:00"},{"alias_kind":"arxiv_version","alias_value":"1602.05820v1","created_at":"2026-05-18T01:20:23.136071+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1602.05820","created_at":"2026-05-18T01:20:23.136071+00:00"},{"alias_kind":"pith_short_12","alias_value":"JYS5WU35EM7F","created_at":"2026-05-18T12:30:25.849896+00:00"},{"alias_kind":"pith_short_16","alias_value":"JYS5WU35EM7FODAW","created_at":"2026-05-18T12:30:25.849896+00:00"},{"alias_kind":"pith_short_8","alias_value":"JYS5WU35","created_at":"2026-05-18T12:30:25.849896+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/JYS5WU35EM7FODAW7VGY35Q4D6","json":"https://pith.science/pith/JYS5WU35EM7FODAW7VGY35Q4D6.json","graph_json":"https://pith.science/api/pith-number/JYS5WU35EM7FODAW7VGY35Q4D6/graph.json","events_json":"https://pith.science/api/pith-number/JYS5WU35EM7FODAW7VGY35Q4D6/events.json","paper":"https://pith.science/paper/JYS5WU35"},"agent_actions":{"view_html":"https://pith.science/pith/JYS5WU35EM7FODAW7VGY35Q4D6","download_json":"https://pith.science/pith/JYS5WU35EM7FODAW7VGY35Q4D6.json","view_paper":"https://pith.science/paper/JYS5WU35","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1602.05820&json=true","fetch_graph":"https://pith.science/api/pith-number/JYS5WU35EM7FODAW7VGY35Q4D6/graph.json","fetch_events":"https://pith.science/api/pith-number/JYS5WU35EM7FODAW7VGY35Q4D6/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/JYS5WU35EM7FODAW7VGY35Q4D6/action/timestamp_anchor","attest_storage":"https://pith.science/pith/JYS5WU35EM7FODAW7VGY35Q4D6/action/storage_attestation","attest_author":"https://pith.science/pith/JYS5WU35EM7FODAW7VGY35Q4D6/action/author_attestation","sign_citation":"https://pith.science/pith/JYS5WU35EM7FODAW7VGY35Q4D6/action/citation_signature","submit_replication":"https://pith.science/pith/JYS5WU35EM7FODAW7VGY35Q4D6/action/replication_record"}},"created_at":"2026-05-18T01:20:23.136071+00:00","updated_at":"2026-05-18T01:20:23.136071+00:00"}