{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:RA2V2USFG42W2HKDOCZRVEV2PS","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":"d81aaa8ec9dff36739530c8666e3e3d0349d8d3cbf038bdc680f4ccdabb4ce85","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2013-07-28T15:12:52Z","title_canon_sha256":"c735df16c7a4fd92b74f5d55809bcce44b76eac52cf5765605c67802a2931933"},"schema_version":"1.0","source":{"id":"1307.7373","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1307.7373","created_at":"2026-05-18T01:48:33Z"},{"alias_kind":"arxiv_version","alias_value":"1307.7373v1","created_at":"2026-05-18T01:48:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1307.7373","created_at":"2026-05-18T01:48:33Z"},{"alias_kind":"pith_short_12","alias_value":"RA2V2USFG42W","created_at":"2026-05-18T12:27:57Z"},{"alias_kind":"pith_short_16","alias_value":"RA2V2USFG42W2HKD","created_at":"2026-05-18T12:27:57Z"},{"alias_kind":"pith_short_8","alias_value":"RA2V2USF","created_at":"2026-05-18T12:27:57Z"}],"graph_snapshots":[{"event_id":"sha256:8ea94d6b1dd81249af769a80fae7332827e21bd1522b4e99aca792749c73392e","target":"graph","created_at":"2026-05-18T01:48:33Z","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"},"paper":{"abstract_excerpt":"A multi-reflection time-of-flight mass spectrograph, competitive with Penning trap mass spectrometers, has been built at RIKEN. We have performed a first online mass measurement, using 8Li+ (T1/2 = 838 ms). A new analysis method has been realized, with which, using only 12C+ references, the mass excess of 8Li was accurately determined to be 20947.6(15)(34) keV (dm/m = 6.6 x 10-7). The speed, precision and accuracy of this first online measurement exemplifies the potential for using this new type of mass spectrograph for precision measurements of short-lived nuclei.","authors_text":"A. Ozawa, A. Takamine, F. Arai, H. Mita, H. Wollnik, K. Okada, M. Wada, P. Schury, S. Naimi, T. Sonoda, Y. Ito","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2013-07-28T15:12:52Z","title":"Single-reference high-precision mass measurement with a multi-reflection time-of-flight mass spectrograph"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1307.7373","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":"sha256:685df4b601df26dbf4571ad36e6b65a13bb76d6c1522d621a7f34a94b8cc3940","target":"record","created_at":"2026-05-18T01:48:33Z","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":"d81aaa8ec9dff36739530c8666e3e3d0349d8d3cbf038bdc680f4ccdabb4ce85","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2013-07-28T15:12:52Z","title_canon_sha256":"c735df16c7a4fd92b74f5d55809bcce44b76eac52cf5765605c67802a2931933"},"schema_version":"1.0","source":{"id":"1307.7373","kind":"arxiv","version":1}},"canonical_sha256":"88355d524537356d1d4370b31a92ba7c9488982f8a8bfc61361e8497aa9bec5b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"88355d524537356d1d4370b31a92ba7c9488982f8a8bfc61361e8497aa9bec5b","first_computed_at":"2026-05-18T01:48:33.684804Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:48:33.684804Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"s25/S1iqHN1jZs0xg1IUxDIrGBDzjk2qkGVXMEU71oA5axtXYEpiIoveo3pJ9ElyJsvAbCVcJpf719JkP82PBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:48:33.685368Z","signed_message":"canonical_sha256_bytes"},"source_id":"1307.7373","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:685df4b601df26dbf4571ad36e6b65a13bb76d6c1522d621a7f34a94b8cc3940","sha256:8ea94d6b1dd81249af769a80fae7332827e21bd1522b4e99aca792749c73392e"],"state_sha256":"c55b85cdad5591ab728227d8623dce346c7fd40d4de39e812b20b2be5d82951d"}