{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2005:H6TWFWWOT47JTAQYFHMMPHMY3D","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":"9127ac406d88160b543757825017bff0a4ca7728ed73b53c66cb9c3a8df033ef","cross_cats_sorted":[],"license":"","primary_cat":"nucl-th","submitted_at":"2005-12-05T23:01:49Z","title_canon_sha256":"577e90e734ac784edbc3299a72b09c5cd396661d7d66b5f025c7b43cf56578ed"},"schema_version":"1.0","source":{"id":"nucl-th/0512015","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"nucl-th/0512015","created_at":"2026-07-04T16:57:01Z"},{"alias_kind":"arxiv_version","alias_value":"nucl-th/0512015v1","created_at":"2026-07-04T16:57:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.nucl-th/0512015","created_at":"2026-07-04T16:57:01Z"},{"alias_kind":"pith_short_12","alias_value":"H6TWFWWOT47J","created_at":"2026-07-04T16:57:01Z"},{"alias_kind":"pith_short_16","alias_value":"H6TWFWWOT47JTAQY","created_at":"2026-07-04T16:57:01Z"},{"alias_kind":"pith_short_8","alias_value":"H6TWFWWO","created_at":"2026-07-04T16:57:01Z"}],"graph_snapshots":[{"event_id":"sha256:a72e355012f0191dc77a0f27461b5e85316c02fcb7a42167515183dc57f3785f","target":"graph","created_at":"2026-07-04T16:57:01Z","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/nucl-th/0512015/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Recently, precision laser spectroscopy on 6He atoms determined accurately the isotope shift between 4He and 6He and, consequently, the charge radius of 6He. A similar experiment for 8He is under way. We have performed large-scale ab initio calculations for 4,6,8He isotopes using high-precision nucleon-nucleon (NN) interactions within the no-core shell model (NCSM) approach. With the CD-Bonn 2000 NN potential we found point-proton root-mean-square (rms) radii of 4He and 6He 1.45(1) fm and 1.89(4), respectively, in agreement with experiment and predict the 8He point proton rms radius to be 1.88(","authors_text":"E. Caurier (IReS, Livermore), P. Navratil (LLNL, Strasbourg)","cross_cats":[],"headline":"","license":"","primary_cat":"nucl-th","submitted_at":"2005-12-05T23:01:49Z","title":"Proton radii of 4,6,8He isotopes from high-precision nucleon-nucleon interactions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"nucl-th/0512015","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":"sha256:2417227b36f818cf3653a2346f7b0efe9ee368cc6f55a5f723667b546672c526","target":"record","created_at":"2026-07-04T16:57:01Z","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":"9127ac406d88160b543757825017bff0a4ca7728ed73b53c66cb9c3a8df033ef","cross_cats_sorted":[],"license":"","primary_cat":"nucl-th","submitted_at":"2005-12-05T23:01:49Z","title_canon_sha256":"577e90e734ac784edbc3299a72b09c5cd396661d7d66b5f025c7b43cf56578ed"},"schema_version":"1.0","source":{"id":"nucl-th/0512015","kind":"arxiv","version":1}},"canonical_sha256":"3fa762dace9f3e99821829d8c79d98d8de75b848e9685e1fe81bd4ff2fb78724","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3fa762dace9f3e99821829d8c79d98d8de75b848e9685e1fe81bd4ff2fb78724","first_computed_at":"2026-07-04T16:57:01.927405Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:57:01.927405Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"SV0lotpS3YsAzI0ZlKu9jpWggcrG3gbfbyH/tqUMgQqb2MO4VufPK35RByFpCtS8xHP543ZNBZ7Tpge7877rAQ==","signature_status":"signed_v1","signed_at":"2026-07-04T16:57:01.927763Z","signed_message":"canonical_sha256_bytes"},"source_id":"nucl-th/0512015","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2417227b36f818cf3653a2346f7b0efe9ee368cc6f55a5f723667b546672c526","sha256:a72e355012f0191dc77a0f27461b5e85316c02fcb7a42167515183dc57f3785f"],"state_sha256":"b915a9e91476b53f8ec39d034981d2037bb6706d82192e6fcb163594d4999621"}