{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1998:SR7J3JFONCQKBVVS2W76LIT5JI","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":"027cedee9b48ceec8ddecb8074199616b5359912a2ea3dee7b3fdc9f1a574d51","cross_cats_sorted":[],"license":"","primary_cat":"nucl-th","submitted_at":"1998-11-22T23:34:26Z","title_canon_sha256":"5b7c221715e0cd29a942e6c560c1a9c98c2ccb4fc8e808a9860ede91a50a6286"},"schema_version":"1.0","source":{"id":"nucl-th/9811077","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"nucl-th/9811077","created_at":"2026-05-18T04:18:13Z"},{"alias_kind":"arxiv_version","alias_value":"nucl-th/9811077v2","created_at":"2026-05-18T04:18:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.nucl-th/9811077","created_at":"2026-05-18T04:18:13Z"},{"alias_kind":"pith_short_12","alias_value":"SR7J3JFONCQK","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_16","alias_value":"SR7J3JFONCQKBVVS","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_8","alias_value":"SR7J3JFO","created_at":"2026-05-18T12:25:49Z"}],"graph_snapshots":[{"event_id":"sha256:b7a7acfc7f7e519989d9f706142aa475985046ca6cdd9a150ce2469abfe0ccf1","target":"graph","created_at":"2026-05-18T04:18:13Z","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":"We consider pairing in a dilute system of Fermions with a short-range interaction. While the theory is ill-defined for a contact interaction, the BCS equations can be solved in the leading order of low-energy effective field theory. The integrals are evaluated with the dimensional regularization technique, giving analytic formulas relating the pairing gap, the density, and the energy density to the two-particle scattering length.","authors_text":"George F. Bertsch (Institute for Nuclear Theory, Seattle), Thomas Papenbrock","cross_cats":[],"headline":"","license":"","primary_cat":"nucl-th","submitted_at":"1998-11-22T23:34:26Z","title":"Pairing in low-density Fermi gases"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"nucl-th/9811077","kind":"arxiv","version":2},"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":"sha256:6029a7673e8f776ad316c81d32c04a0ad695aaa8299cdc31fa5d177d628cdad3","target":"record","created_at":"2026-05-18T04:18:13Z","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":"027cedee9b48ceec8ddecb8074199616b5359912a2ea3dee7b3fdc9f1a574d51","cross_cats_sorted":[],"license":"","primary_cat":"nucl-th","submitted_at":"1998-11-22T23:34:26Z","title_canon_sha256":"5b7c221715e0cd29a942e6c560c1a9c98c2ccb4fc8e808a9860ede91a50a6286"},"schema_version":"1.0","source":{"id":"nucl-th/9811077","kind":"arxiv","version":2}},"canonical_sha256":"947e9da4ae68a0a0d6b2d5bfe5a27d4a281859a25c404b86aa50d99a10319a21","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"947e9da4ae68a0a0d6b2d5bfe5a27d4a281859a25c404b86aa50d99a10319a21","first_computed_at":"2026-05-18T04:18:13.723552Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:18:13.723552Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"zVUp8y6sc2cqhaGMqo5zjmGHbQOyV9nRJEwFMsZIDV+jF6Yy6r4oh6tK9QNKqeNP2tq3SZQO6APBMpyNFAQ8Bg==","signature_status":"signed_v1","signed_at":"2026-05-18T04:18:13.724232Z","signed_message":"canonical_sha256_bytes"},"source_id":"nucl-th/9811077","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6029a7673e8f776ad316c81d32c04a0ad695aaa8299cdc31fa5d177d628cdad3","sha256:b7a7acfc7f7e519989d9f706142aa475985046ca6cdd9a150ce2469abfe0ccf1"],"state_sha256":"941591c8175e14fd2a0a9795ec51b42f3be6004ccbb3fa4a4e72223c9b6b3382"}