{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:YZEKHXXBLSLEC34XLGLK6TZUSV","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":"47400b57981b516c97f1acea44cf41b2862fd2ffef36665be8bb57b1ad2eff1b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2019-04-10T01:13:04Z","title_canon_sha256":"b00a908921299eb0a6bcf48bcf55f4df3dfc0e4cfd69a612e5ad28fff944bf3c"},"schema_version":"1.0","source":{"id":"1904.04961","kind":"arxiv","version":5}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1904.04961","created_at":"2026-07-05T00:21:33Z"},{"alias_kind":"arxiv_version","alias_value":"1904.04961v5","created_at":"2026-07-05T00:21:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1904.04961","created_at":"2026-07-05T00:21:33Z"},{"alias_kind":"pith_short_12","alias_value":"YZEKHXXBLSLE","created_at":"2026-07-05T00:21:33Z"},{"alias_kind":"pith_short_16","alias_value":"YZEKHXXBLSLEC34X","created_at":"2026-07-05T00:21:33Z"},{"alias_kind":"pith_short_8","alias_value":"YZEKHXXB","created_at":"2026-07-05T00:21:33Z"}],"graph_snapshots":[{"event_id":"sha256:228cbbaaf3cf97d485492df946c9a61778ec6786a01f4be43e264f1e55d6978d","target":"graph","created_at":"2026-07-05T00:21:33Z","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/1904.04961/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Fine structure in the $\\alpha$ decay of $^{223}$U was observed in the fusion-evaporation reaction $^{187}$Re($^{40}$Ar, p3n) by using fast digital pulse processing technique. Two $\\alpha$-decay branches of $^{223}$U feeding the ground state and 244 keV excited state of $^{219}$Th were identified by establishing the decay chain $^{223}$U $\\xrightarrow{\\alpha_{1}}$ $^{219}$Th $\\xrightarrow{\\alpha_{2}}$ $^{215}$Ra $\\xrightarrow{\\alpha_{3}}$ $^{211}$Rn. The $\\alpha$-particle energy for the ground-state to ground-state transition of $^{223}$U was determined to be 8993(17) keV, 213 keV higher than t","authors_text":"A.H. Feng, A.N. Andreyev, B. Ding, C.J. Lin, C. Qi, D.S. Hou, F.S. Zhang, G.Q. Xiao, H.B. Yang, H.S. Xu, H.Y. Lu, J.G. Wang, J. Jiang, J. Li, K.L. Wang, L.J. Sun, L. Ma, L. Yu, M.D. Sun, M.L. Liu, N.R. Ma, T.H. Huang, W.Q. Zhang, W. Zuo, X.H. Zhou, X. Wang, X.Y. Liu, Y.S. Wang, Z.G. Gan, Z.H. Li, Z. Liu, Z.Y. Zhang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2019-04-10T01:13:04Z","title":"Fine structure in the $\\alpha$ decay of $^{223}$U"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1904.04961","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":"sha256:6b4cbedcfc69a4a4f53d9ec9618044a185649cc136e80c415d930011da8a0e4c","target":"record","created_at":"2026-07-05T00:21:33Z","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":"47400b57981b516c97f1acea44cf41b2862fd2ffef36665be8bb57b1ad2eff1b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2019-04-10T01:13:04Z","title_canon_sha256":"b00a908921299eb0a6bcf48bcf55f4df3dfc0e4cfd69a612e5ad28fff944bf3c"},"schema_version":"1.0","source":{"id":"1904.04961","kind":"arxiv","version":5}},"canonical_sha256":"c648a3dee15c96416f975996af4f34957e2c7b8762bae71922b6997c89be4486","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c648a3dee15c96416f975996af4f34957e2c7b8762bae71922b6997c89be4486","first_computed_at":"2026-07-05T00:21:33.999298Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:21:33.999298Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"yE+xkFZ9VyNttfyeFheteKeq8AgWwgH6Jbbo6+GNS63aK8PDmISAblSjM1c4EzY7oxNgJKMwIXoIkTfdpPZACw==","signature_status":"signed_v1","signed_at":"2026-07-05T00:21:33.999802Z","signed_message":"canonical_sha256_bytes"},"source_id":"1904.04961","source_kind":"arxiv","source_version":5}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6b4cbedcfc69a4a4f53d9ec9618044a185649cc136e80c415d930011da8a0e4c","sha256:228cbbaaf3cf97d485492df946c9a61778ec6786a01f4be43e264f1e55d6978d"],"state_sha256":"3e062477c2001c1010c7c02ea98b74b94d28c21f79f3cd9214107695a7070c8b"}