{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2026:JR3UBJXQSVUQSSPFOIFBGJBJKD","short_pith_number":"pith:JR3UBJXQ","schema_version":"1.0","canonical_sha256":"4c7740a6f095690949e5720a13242950c8b5ab5165403fabac74edb15bfd9a8e","source":{"kind":"arxiv","id":"2606.22341","version":1},"attestation_state":"computed","paper":{"title":"Full Configuration Interaction Quantum Monte Carlo for Accurate $\\textit{Ab Initio}$ Nuclear Structure Calculations","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["nucl-ex"],"primary_cat":"nucl-th","authors_text":"Ali Alavi, Baishan Hu, Furong Xu, Rongzhe Hu","submitted_at":"2026-06-21T05:16:33Z","abstract_excerpt":"We introduce novel full configuration interaction quantum Monte Carlo (FCIQMC) as an accurate many-body solver for $\\textit{ab initio}$ nuclear structure calculations. This stochastic approach directly samples the exact wave function in the full configuration space, enabling high-fidelity treatment of high-order many-body correlations in strongly interacting nuclear systems. Using interactions from chiral effective field theory, we have computed ground-state energies and charge radii of $^4$He, $^8$Be, $^{12}$C and $^{16}$O with sub-percent-level many-body uncertainties. These results establis"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"2606.22341","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"nucl-th","submitted_at":"2026-06-21T05:16:33Z","cross_cats_sorted":["nucl-ex"],"title_canon_sha256":"25ccada2c93ae6569eebda87fe2f93feabd56b351cbdd78dcef258f0f345923e","abstract_canon_sha256":"e19f7b8318922ff7efec90713fb244f7223c66b0b764271e391b12752401e7d6"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-23T02:13:35.258468Z","signature_b64":"EUaEZyF5vVUdiAxpeOlew0G+mtX9ymT8VIkEbNk6SGurvCI/fL2mTkRw4pC88DPw37FCN5twrDoG980U+4HaDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4c7740a6f095690949e5720a13242950c8b5ab5165403fabac74edb15bfd9a8e","last_reissued_at":"2026-06-23T02:13:35.258100Z","signature_status":"signed_v1","first_computed_at":"2026-06-23T02:13:35.258100Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Full Configuration Interaction Quantum Monte Carlo for Accurate $\\textit{Ab Initio}$ Nuclear Structure Calculations","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["nucl-ex"],"primary_cat":"nucl-th","authors_text":"Ali Alavi, Baishan Hu, Furong Xu, Rongzhe Hu","submitted_at":"2026-06-21T05:16:33Z","abstract_excerpt":"We introduce novel full configuration interaction quantum Monte Carlo (FCIQMC) as an accurate many-body solver for $\\textit{ab initio}$ nuclear structure calculations. This stochastic approach directly samples the exact wave function in the full configuration space, enabling high-fidelity treatment of high-order many-body correlations in strongly interacting nuclear systems. Using interactions from chiral effective field theory, we have computed ground-state energies and charge radii of $^4$He, $^8$Be, $^{12}$C and $^{16}$O with sub-percent-level many-body uncertainties. These results establis"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.22341","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2606.22341/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"aliases":[{"alias_kind":"arxiv","alias_value":"2606.22341","created_at":"2026-06-23T02:13:35.258165+00:00"},{"alias_kind":"arxiv_version","alias_value":"2606.22341v1","created_at":"2026-06-23T02:13:35.258165+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.22341","created_at":"2026-06-23T02:13:35.258165+00:00"},{"alias_kind":"pith_short_12","alias_value":"JR3UBJXQSVUQ","created_at":"2026-06-23T02:13:35.258165+00:00"},{"alias_kind":"pith_short_16","alias_value":"JR3UBJXQSVUQSSPF","created_at":"2026-06-23T02:13:35.258165+00:00"},{"alias_kind":"pith_short_8","alias_value":"JR3UBJXQ","created_at":"2026-06-23T02:13:35.258165+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/JR3UBJXQSVUQSSPFOIFBGJBJKD","json":"https://pith.science/pith/JR3UBJXQSVUQSSPFOIFBGJBJKD.json","graph_json":"https://pith.science/api/pith-number/JR3UBJXQSVUQSSPFOIFBGJBJKD/graph.json","events_json":"https://pith.science/api/pith-number/JR3UBJXQSVUQSSPFOIFBGJBJKD/events.json","paper":"https://pith.science/paper/JR3UBJXQ"},"agent_actions":{"view_html":"https://pith.science/pith/JR3UBJXQSVUQSSPFOIFBGJBJKD","download_json":"https://pith.science/pith/JR3UBJXQSVUQSSPFOIFBGJBJKD.json","view_paper":"https://pith.science/paper/JR3UBJXQ","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2606.22341&json=true","fetch_graph":"https://pith.science/api/pith-number/JR3UBJXQSVUQSSPFOIFBGJBJKD/graph.json","fetch_events":"https://pith.science/api/pith-number/JR3UBJXQSVUQSSPFOIFBGJBJKD/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/JR3UBJXQSVUQSSPFOIFBGJBJKD/action/timestamp_anchor","attest_storage":"https://pith.science/pith/JR3UBJXQSVUQSSPFOIFBGJBJKD/action/storage_attestation","attest_author":"https://pith.science/pith/JR3UBJXQSVUQSSPFOIFBGJBJKD/action/author_attestation","sign_citation":"https://pith.science/pith/JR3UBJXQSVUQSSPFOIFBGJBJKD/action/citation_signature","submit_replication":"https://pith.science/pith/JR3UBJXQSVUQSSPFOIFBGJBJKD/action/replication_record"}},"created_at":"2026-06-23T02:13:35.258165+00:00","updated_at":"2026-06-23T02:13:35.258165+00:00"}