{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2008:XAWKZCNNF5ZY2TALWSYEOCHRYF","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":"cef3c03f4a7ae6941ba660ca2d607d82b2567caaf7ccb6c6d3d6a5092230d236","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2008-03-05T13:00:36Z","title_canon_sha256":"ac88f7d378a7033ed839b4743db42192e1d98d127fd3cae8ffc902817626f0df"},"schema_version":"1.0","source":{"id":"0803.0649","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0803.0649","created_at":"2026-07-04T15:29:52Z"},{"alias_kind":"arxiv_version","alias_value":"0803.0649v4","created_at":"2026-07-04T15:29:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0803.0649","created_at":"2026-07-04T15:29:52Z"},{"alias_kind":"pith_short_12","alias_value":"XAWKZCNNF5ZY","created_at":"2026-07-04T15:29:52Z"},{"alias_kind":"pith_short_16","alias_value":"XAWKZCNNF5ZY2TAL","created_at":"2026-07-04T15:29:52Z"},{"alias_kind":"pith_short_8","alias_value":"XAWKZCNN","created_at":"2026-07-04T15:29:52Z"}],"graph_snapshots":[{"event_id":"sha256:fed6b797a03553cbe403ea9f2be165c7f96c88f08778721582dfa592c4042b17","target":"graph","created_at":"2026-07-04T15:29:52Z","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/0803.0649/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The $B(E2;0^+\\to2^+)$ value in $^{68}$Ni has been measured using Coulomb excitation at safe energies. The $^{68}$Ni radioactive beam was post-accelerated at the ISOLDE facility (CERN) to 2.9 MeV/u. The emitted $\\gamma$ rays were detected by the MINIBALL detector array. A kinematic particle reconstruction was performed in order to increase the measured c.m. angular range of the excitation cross section. The obtained value of 2.8$^{+1.2}_{-1.0}$ 10$^2$ e$^2$fm$^4$ is in good agreement with the value measured at intermediate energy Coulomb excitation, confirming the low $0^+\\to2^+$ transition pro","authors_text":"B.A. Marsh, D. Fedorov, D. Schwalm, D. Weisshaar, F. Wenander, G. Georgiev, H. Scheit, I. Stefanescu, J. Cederk\\\"all, J. Eberth, J. Iwanicki, J. Jolie, J. Van de Walle, K. Gladnishki, L.M. Fraile, M. Huyse, N. Bree, N. Warr, O. Ivanov, O. Niedermaier, P.A. Butler, P. Delahaye, P. Reiter, P. Van Duppen, R. Kr\\\"ucken, S. Franchoo, S. Zemlyanoy, T. Davinson, Th. Kr\\\"oll, T. Sieber, U. K\\\"oster, V.N. Fedosseev","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2008-03-05T13:00:36Z","title":"Coulomb excitation of $^{68}$Ni at safe energies"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0803.0649","kind":"arxiv","version":4},"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":"sha256:239d5103d65e6ecc4b4ea2f1462da8620ad9255907cb8eb58edf94bd8a83363b","target":"record","created_at":"2026-07-04T15:29:52Z","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":"cef3c03f4a7ae6941ba660ca2d607d82b2567caaf7ccb6c6d3d6a5092230d236","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2008-03-05T13:00:36Z","title_canon_sha256":"ac88f7d378a7033ed839b4743db42192e1d98d127fd3cae8ffc902817626f0df"},"schema_version":"1.0","source":{"id":"0803.0649","kind":"arxiv","version":4}},"canonical_sha256":"b82cac89ad2f738d4c0bb4b04708f1c14d31615e4b0ccd85349028274025cb7a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b82cac89ad2f738d4c0bb4b04708f1c14d31615e4b0ccd85349028274025cb7a","first_computed_at":"2026-07-04T15:29:52.371068Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T15:29:52.371068Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"S2UeBDJqjoRSkGsNOdjTKwUhrISYevxtQwahgZih7yigyX8YeEgH646KREVfosQqh4IFdtN3kiH+lU3vAs60Ag==","signature_status":"signed_v1","signed_at":"2026-07-04T15:29:52.371481Z","signed_message":"canonical_sha256_bytes"},"source_id":"0803.0649","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:239d5103d65e6ecc4b4ea2f1462da8620ad9255907cb8eb58edf94bd8a83363b","sha256:fed6b797a03553cbe403ea9f2be165c7f96c88f08778721582dfa592c4042b17"],"state_sha256":"3bbaf3a5f2d865a7b8c0297aa1342dd40862af5c33be6490e948eafb72497b99"}