{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:L77HGS65RVGD26XXTF4LNORFSN","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":"3abd729fa3cfdcdfc3121c1137687291678c5f8e0368895b6c04998b83fa4239","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2020-07-30T14:38:57Z","title_canon_sha256":"c10f707b89d758955b7231155da6bf8ab41f4c5dd966609748d5e0eae3e09977"},"schema_version":"1.0","source":{"id":"2007.15494","kind":"arxiv","version":5}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2007.15494","created_at":"2026-07-05T01:47:01Z"},{"alias_kind":"arxiv_version","alias_value":"2007.15494v5","created_at":"2026-07-05T01:47:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2007.15494","created_at":"2026-07-05T01:47:01Z"},{"alias_kind":"pith_short_12","alias_value":"L77HGS65RVGD","created_at":"2026-07-05T01:47:01Z"},{"alias_kind":"pith_short_16","alias_value":"L77HGS65RVGD26XX","created_at":"2026-07-05T01:47:01Z"},{"alias_kind":"pith_short_8","alias_value":"L77HGS65","created_at":"2026-07-05T01:47:01Z"}],"graph_snapshots":[{"event_id":"sha256:f34ec5269786f933ce05cd1a64ccb45ce31d02adc1381cca02a4e6b65bcbf050","target":"graph","created_at":"2026-07-05T01:47:01Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2007.15494/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The excitation function for the $pd\\rightarrow$ $d p \\pi^{0}$ reaction has been measured by WASA-at-COSY experiment with the aim of searching for $^{3}\\hspace{-0.03cm}\\mbox{He}$-$\\eta$ mesic nuclei. The measurement in the vicinity of $\\eta$ meson production was performed using a ramped proton beam. The data analysis and interpretation was carried out with the assumption that the $\\eta$-mesic Helium decays via the formation of an intermediate N$^{*}$(1535) resonance. No direct signal of the $\\eta$-mesic nucleus is observed in the excitation function. We determine a new improved upper limit for ","authors_text":"A. Bondar, A. Erven, A. Goswami, A. Khoukaz, A. Khreptak, A. Kupsc, A. Magiera, A. Roy, A. Szczurek, A. Wronska, A. Yamamoto, B. Kamys, B. Klos, B. Lorentz, B. Marianski, B. Shwartz, D. A. Kirillov, D. Lersch, D. Prasuhn, D. Pszczel, E. Czerwinski, E. Perez del Rio, E. Stephan, F. Goldenbaum, F. S. Bergmann, G. Kemmerling, G. Sterzenbach, H. Calen, H. Clement, H. Kleines, H. Ohm, H.-P. Morsch, H. Stockhorst, H. Stroher, I. Ciepal, J. Ritman, J. Smyrski, J. Stepaniak, J. Zabierowski, J. Zlomanczuk, K. Demmich, K. Fohl, K. Fransson, K. Grigoryev, K. Lalwani, K. Pysz, L. Heijkenskjold, M. Bashkanov, M. Berlowski, M. Buscher, M. J. Zielinski, M. Skurzok, M. Wolke, M. Zurek, N. G. Kelkar, N. Husken, N. M. Piskunov, O. Rundel, P. Adlarson, P. Fedorets, P. Kulessa, P. Marciniewski, P. Moskal, P. Wustner, R. Engels, R. Maier, R. Stassen, S. D. Bass, S. Hirenzaki, S. Kistryn, S. Sawant, S. Schadmand, T. Johansson, T. Sefzick, T. Skorodko, V. Hejny, V. Serdyuk, V. Sopov, W. Augustyniak, W. Erven, W. Eyrich, W. Krzemien, W. Parol","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2020-07-30T14:38:57Z","title":"Search for the $\\eta$ mesic $^3$He in the $pd\\rightarrow d p \\pi^{0}$ reaction with the WASA-at-COSY facility"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2007.15494","kind":"arxiv","version":5},"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":"sha256:82d4e1db1b580fb6b74e1180ba3fc52dc1ed4f7675693a7cc605b56e5bae435c","target":"record","created_at":"2026-07-05T01:47:01Z","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":"3abd729fa3cfdcdfc3121c1137687291678c5f8e0368895b6c04998b83fa4239","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2020-07-30T14:38:57Z","title_canon_sha256":"c10f707b89d758955b7231155da6bf8ab41f4c5dd966609748d5e0eae3e09977"},"schema_version":"1.0","source":{"id":"2007.15494","kind":"arxiv","version":5}},"canonical_sha256":"5ffe734bdd8d4c3d7af79978b6ba25934d37b6c856f31958b6af3ba680a78053","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5ffe734bdd8d4c3d7af79978b6ba25934d37b6c856f31958b6af3ba680a78053","first_computed_at":"2026-07-05T01:47:01.841381Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:47:01.841381Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"PNTmnoZmpJi1gMywoE2f8Goczw3osYvbTAhzpyTY8QRAdU4/KG9/iEilq52EMmRALyvPkKfVpVxTNatOq1OvCw==","signature_status":"signed_v1","signed_at":"2026-07-05T01:47:01.841832Z","signed_message":"canonical_sha256_bytes"},"source_id":"2007.15494","source_kind":"arxiv","source_version":5}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:82d4e1db1b580fb6b74e1180ba3fc52dc1ed4f7675693a7cc605b56e5bae435c","sha256:f34ec5269786f933ce05cd1a64ccb45ce31d02adc1381cca02a4e6b65bcbf050"],"state_sha256":"9c8f93b9865fda46fc066d6c6e7ae931d79119cfaa8259428a579fd1dd62abff"}