{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:K7CWXTR34EQBNW7MLAU2J5ZAX4","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":"6948eb09768c9f317f6087e3606d59296fc715295746b127164c3a3e5295d1bf","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2021-07-26T14:17:08Z","title_canon_sha256":"9cf073f6ec82aa27a3d5f923014ab4672b7aeec02199373034bc9aa730940946"},"schema_version":"1.0","source":{"id":"2107.12228","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2107.12228","created_at":"2026-07-05T03:00:41Z"},{"alias_kind":"arxiv_version","alias_value":"2107.12228v1","created_at":"2026-07-05T03:00:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2107.12228","created_at":"2026-07-05T03:00:41Z"},{"alias_kind":"pith_short_12","alias_value":"K7CWXTR34EQB","created_at":"2026-07-05T03:00:41Z"},{"alias_kind":"pith_short_16","alias_value":"K7CWXTR34EQBNW7M","created_at":"2026-07-05T03:00:41Z"},{"alias_kind":"pith_short_8","alias_value":"K7CWXTR3","created_at":"2026-07-05T03:00:41Z"}],"graph_snapshots":[{"event_id":"sha256:5d0f86adf4f2d140a4ae6432e9aefe87144a63f01eabbe06600a61f21c609049","target":"graph","created_at":"2026-07-05T03:00:41Z","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/2107.12228/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"An exact treatment of the operators Q/e(\\omega) and the total momentum is adopted to solve the nuclear matter Bruecker-Bethe-Goldstone equation with two- and three-body forces. The single-particle potential, equation of state and nucleon effective mass are calculated from the exact G-matrix. The results are compared with those obtained under the angle-average approximation and the angle-average approximation with total momentum approximation. It is found that the angle-average procedure, whereas preventing huge calculations of coupled channels, nevertheless provides a fairly accurate approxima","authors_text":"Jian-min Dong, Peng Yin, U. Lombardo4, Wei Zuo, Xin-le Shang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2021-07-26T14:17:08Z","title":"Exact solution of the Brueckner-Bethe-Goldstone equation with three-body forces in nuclear matter"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2107.12228","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":"sha256:7ca92b00325747259f987297ca20cc76ebe42aa2e0749ff0f2f886e33b71f7d8","target":"record","created_at":"2026-07-05T03:00:41Z","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":"6948eb09768c9f317f6087e3606d59296fc715295746b127164c3a3e5295d1bf","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2021-07-26T14:17:08Z","title_canon_sha256":"9cf073f6ec82aa27a3d5f923014ab4672b7aeec02199373034bc9aa730940946"},"schema_version":"1.0","source":{"id":"2107.12228","kind":"arxiv","version":1}},"canonical_sha256":"57c56bce3be12016dbec5829a4f720bf35155015c483780dc25a65dd8bbcf6d4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"57c56bce3be12016dbec5829a4f720bf35155015c483780dc25a65dd8bbcf6d4","first_computed_at":"2026-07-05T03:00:41.798158Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:00:41.798158Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"aMNY64TOAU8ojPpLwgnmsq0FFJCYGkfO1bCZTXUJYwFBju0gLcmgl/g0Z2b9W0OA9DsHjxul71AdXD1MFSeRCw==","signature_status":"signed_v1","signed_at":"2026-07-05T03:00:41.798545Z","signed_message":"canonical_sha256_bytes"},"source_id":"2107.12228","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7ca92b00325747259f987297ca20cc76ebe42aa2e0749ff0f2f886e33b71f7d8","sha256:5d0f86adf4f2d140a4ae6432e9aefe87144a63f01eabbe06600a61f21c609049"],"state_sha256":"f87d40c5d5aff79e9987c42483134daf1be480cf01b6aa38aa2b38a44172421f"}