{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:GSHDUZ55SZSBDWN44MXWQYGT66","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":"8576b1fdb189de2b9a08d0ddb0c6072633c297fbd5d5e1f2fb502966fcb2002a","cross_cats_sorted":["nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2010-12-07T11:05:04Z","title_canon_sha256":"2e18ff54370c784c7f8e367c8f4f2befb61ed1083fbea690f7e3daa28cf13317"},"schema_version":"1.0","source":{"id":"1012.1463","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1012.1463","created_at":"2026-05-18T02:23:14Z"},{"alias_kind":"arxiv_version","alias_value":"1012.1463v1","created_at":"2026-05-18T02:23:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1012.1463","created_at":"2026-05-18T02:23:14Z"},{"alias_kind":"pith_short_12","alias_value":"GSHDUZ55SZSB","created_at":"2026-05-18T12:26:07Z"},{"alias_kind":"pith_short_16","alias_value":"GSHDUZ55SZSBDWN4","created_at":"2026-05-18T12:26:07Z"},{"alias_kind":"pith_short_8","alias_value":"GSHDUZ55","created_at":"2026-05-18T12:26:07Z"}],"graph_snapshots":[{"event_id":"sha256:13f0311824dc16530dbfbd9f84cd2a2128c542bef21d5fe57ee7a6d2944d8e2f","target":"graph","created_at":"2026-05-18T02:23:14Z","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":"First exclusive data for the $pp \\to nn\\pi^+\\pi^+$ reaction have been obtained at CELSIUS with the WASA detector setup at a beam energy of $T_p$ = 1.1 GeV. Total and differential cross sections disagree with theoretical calculations, which predict the $\\Delta\\Delta$ excitation to be the dominant process at this beam energy. Instead the data require the excitation of a higher-lying $\\Delta$ state, most likely the $\\Delta(1600)$, to be the leading process.","authors_text":"A. Kupsc, A. Povtorejko, A. Yamamoto, B. Hoistad, B. Morosov, B. Shwartz, C. Ekstrom, C. Pauly, D. Bogoslawsky, E. Doroshkevich, E. Jiganov, F. Kren, G. Ivanov, G.J. Wagner, H. Calen, H. Clement, H. Petren, I. Koch, J. Stepaniak, J. Zabierowski, J. Zlomanczuk, K. Fransson, K. Schonning, L. Demiroers, L. Gustafsson, M. Bashkanov, M. Jacewicz, M. Wolke, O. Khakimova, P.Marciniewski, P. Thorngren-Engblom, R.J.M.Y. Ruber, R. Meier, S. Keleta, S. Kullander, T. Johansson, V. Tikhomirov, W. Scobel, Y. Petukhov","cross_cats":["nucl-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2010-12-07T11:05:04Z","title":"Exclusive Measurement of the $pp \\to nn\\pi^+\\pi^+$ Reaction at 1.1 GeV"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1012.1463","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":"sha256:642ca0dcea66341c157b894841d71212e83ae68f6b16457563e2e4802d277deb","target":"record","created_at":"2026-05-18T02:23:14Z","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":"8576b1fdb189de2b9a08d0ddb0c6072633c297fbd5d5e1f2fb502966fcb2002a","cross_cats_sorted":["nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2010-12-07T11:05:04Z","title_canon_sha256":"2e18ff54370c784c7f8e367c8f4f2befb61ed1083fbea690f7e3daa28cf13317"},"schema_version":"1.0","source":{"id":"1012.1463","kind":"arxiv","version":1}},"canonical_sha256":"348e3a67bd966411d9bce32f6860d3f79622902d1e3ae2a884780977f4b733f8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"348e3a67bd966411d9bce32f6860d3f79622902d1e3ae2a884780977f4b733f8","first_computed_at":"2026-05-18T02:23:14.716575Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:23:14.716575Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"4dHChTOO97CeJk3d814sVYYm59+t7e+9y2WlOiY/60PlS1izoazkxNfQTuD2XrPqM/kO/uazxDZIv2Zedw/jDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:23:14.717172Z","signed_message":"canonical_sha256_bytes"},"source_id":"1012.1463","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:642ca0dcea66341c157b894841d71212e83ae68f6b16457563e2e4802d277deb","sha256:13f0311824dc16530dbfbd9f84cd2a2128c542bef21d5fe57ee7a6d2944d8e2f"],"state_sha256":"2512d9cc2f4f33afd5f21aa2e90c3b16371324c5902b1541bc7ebd7d70f1a5bc"}