{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:X5CA2GWVUN2AEKW44SMVFNPKWY","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":"5b83668380c9b102233b387b0d3acfed73e9e171400af9f342aea4605f9896ef","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"nucl-ex","submitted_at":"2024-02-06T10:33:23Z","title_canon_sha256":"a2fb24b8c72ddc401b2bfb75119e1c88920e3f57bfaf2f2c5ea30865b7dfd6bc"},"schema_version":"1.0","source":{"id":"2402.03873","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2402.03873","created_at":"2026-07-05T08:54:47Z"},{"alias_kind":"arxiv_version","alias_value":"2402.03873v2","created_at":"2026-07-05T08:54:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2402.03873","created_at":"2026-07-05T08:54:47Z"},{"alias_kind":"pith_short_12","alias_value":"X5CA2GWVUN2A","created_at":"2026-07-05T08:54:47Z"},{"alias_kind":"pith_short_16","alias_value":"X5CA2GWVUN2AEKW4","created_at":"2026-07-05T08:54:47Z"},{"alias_kind":"pith_short_8","alias_value":"X5CA2GWV","created_at":"2026-07-05T08:54:47Z"}],"graph_snapshots":[{"event_id":"sha256:128a17d4a829418aeb22c99926adf12d17c846bdc771d25cf930d02f71dd4d92","target":"graph","created_at":"2026-07-05T08:54:47Z","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/2402.03873/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We report the mass measurements of neutron-rich isotopes produced via spontaneous fission of ${}^{252}$Cf using a multi-reflection time-of-flight mass spectrograph. The mass of ${}^{155}$Ce is determined experimentally for the first time. A discrepancy between the experimental and literature values was found for the mass of ${}^{127}$Sb, which was previously deduced through indirect measurements. In comparison with several theoretical predictions, both the values and the trend of the mass excesses of ${}^{152-155}$Ce cannot be consistently explained. The wide-range and simultaneous mass measur","authors_text":"Aiko Takamine, Hiromitsu Haba, Hironobu Ishiyama, Marco Rosenbusch, Michiharu Wada, Peter Schury, Satoshi Ishizawa, Sota Kimura, Toshitaka Niwase, Yuta Ito","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"nucl-ex","submitted_at":"2024-02-06T10:33:23Z","title":"Comprehensive mass measurement study of ${}^{252}$Cf fission fragments with MRTOF-MS and detailed study of masses of neutron-rich Ce isotopes"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2402.03873","kind":"arxiv","version":2},"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:bd74348467911dba98fc6ab4362d06d90d3429a63b405d55900613f9e0fbd399","target":"record","created_at":"2026-07-05T08:54:47Z","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":"5b83668380c9b102233b387b0d3acfed73e9e171400af9f342aea4605f9896ef","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"nucl-ex","submitted_at":"2024-02-06T10:33:23Z","title_canon_sha256":"a2fb24b8c72ddc401b2bfb75119e1c88920e3f57bfaf2f2c5ea30865b7dfd6bc"},"schema_version":"1.0","source":{"id":"2402.03873","kind":"arxiv","version":2}},"canonical_sha256":"bf440d1ad5a374022adce49952b5eab63cb320188fa759eccd3c1d3e028eda9d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"bf440d1ad5a374022adce49952b5eab63cb320188fa759eccd3c1d3e028eda9d","first_computed_at":"2026-07-05T08:54:47.051112Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T08:54:47.051112Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"sypNvfeP84snC1ng8N+U9rZC412Rqh1Xr1Af8BPKlPzYxpNFJPJB7ZIYvQSI5GaHNriX+n9harIrZLmyx7jjAg==","signature_status":"signed_v1","signed_at":"2026-07-05T08:54:47.051561Z","signed_message":"canonical_sha256_bytes"},"source_id":"2402.03873","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:bd74348467911dba98fc6ab4362d06d90d3429a63b405d55900613f9e0fbd399","sha256:128a17d4a829418aeb22c99926adf12d17c846bdc771d25cf930d02f71dd4d92"],"state_sha256":"ed2cf0d6ce16ce37c8b2100438d4de312705d1f0724e8e18856bd5744bac55c1"}