{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2009:IVFDRUEAIU2DKKFG6IONGVV5G2","short_pith_number":"pith:IVFDRUEA","canonical_record":{"source":{"id":"0912.2533","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2009-12-14T02:25:43Z","cross_cats_sorted":[],"title_canon_sha256":"5e11b672383caa1a9b266876647d7a77282f672578672873c925968d5e64a928","abstract_canon_sha256":"de0a21e05bc62866dbaf18ecf180c737a9b0940aaf908b07421f986766e466c3"},"schema_version":"1.0"},"canonical_sha256":"454a38d08045343528a6f21cd356bd36bf32bfaf22cd56d2b3a00c2ce176c270","source":{"kind":"arxiv","id":"0912.2533","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0912.2533","created_at":"2026-05-18T02:33:56Z"},{"alias_kind":"arxiv_version","alias_value":"0912.2533v1","created_at":"2026-05-18T02:33:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0912.2533","created_at":"2026-05-18T02:33:56Z"},{"alias_kind":"pith_short_12","alias_value":"IVFDRUEAIU2D","created_at":"2026-05-18T12:26:00Z"},{"alias_kind":"pith_short_16","alias_value":"IVFDRUEAIU2DKKFG","created_at":"2026-05-18T12:26:00Z"},{"alias_kind":"pith_short_8","alias_value":"IVFDRUEA","created_at":"2026-05-18T12:26:00Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2009:IVFDRUEAIU2DKKFG6IONGVV5G2","target":"record","payload":{"canonical_record":{"source":{"id":"0912.2533","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2009-12-14T02:25:43Z","cross_cats_sorted":[],"title_canon_sha256":"5e11b672383caa1a9b266876647d7a77282f672578672873c925968d5e64a928","abstract_canon_sha256":"de0a21e05bc62866dbaf18ecf180c737a9b0940aaf908b07421f986766e466c3"},"schema_version":"1.0"},"canonical_sha256":"454a38d08045343528a6f21cd356bd36bf32bfaf22cd56d2b3a00c2ce176c270","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:33:56.698365Z","signature_b64":"TQHz/J1sZjsHbaS6q5vDIoIIuLxbx/zuWTSLwCUjTe73r/M/sriByv5tlyeRH6MhK1KxvU9xwvURjetdWXi9Aw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"454a38d08045343528a6f21cd356bd36bf32bfaf22cd56d2b3a00c2ce176c270","last_reissued_at":"2026-05-18T02:33:56.697931Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:33:56.697931Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0912.2533","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:33:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9y+/8JGi7q4qcUr39bFG6KiiR1+lNHuk6Z9vgJq5prfoAzw+uYEf1iKBos2n7ZmpgqsbtV+5Tjzr6u1VZGf+DA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T12:31:52.856223Z"},"content_sha256":"cc0582668e6f6ab8d9b03b36b19d87b0430d3ccf15090d1429310a78802bd772","schema_version":"1.0","event_id":"sha256:cc0582668e6f6ab8d9b03b36b19d87b0430d3ccf15090d1429310a78802bd772"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2009:IVFDRUEAIU2DKKFG6IONGVV5G2","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Spin-triplet pairing in large nuclei","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"nucl-th","authors_text":"G.F. Bertsch, Y. Luo","submitted_at":"2009-12-14T02:25:43Z","abstract_excerpt":"The nuclear pairing condensate is expected to change character from spin-singlet to spin-triplet when the nucleus is very large and the neutron and proton numbers $Z,N$ are equal. We investigate the transition between these two phases within the framework of the Hartree-Fock-Bogoliubov equations, using a zero-range interaction to generate the pairing. We confirm that extremely large nucleus would indeed favor triplet pairing condensates, with the Hamiltonian parameters taken from known systematics. The favored phase is found to depend on the specific orbitals at the Fermi energy. The smallest "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0912.2533","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":""},"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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:33:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"z5bLRQc25SrCmwS7LfoRpvTZu7azBiYBM+E+fNJ8lsJg76zUMpzM2que+C68au0DoO6whQMRCc0hUsGu8szBCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T12:31:52.856927Z"},"content_sha256":"be74f61b4836c60f270c1c34c114d59723e5f21af347b46ef81d2365dfd66b9a","schema_version":"1.0","event_id":"sha256:be74f61b4836c60f270c1c34c114d59723e5f21af347b46ef81d2365dfd66b9a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/IVFDRUEAIU2DKKFG6IONGVV5G2/bundle.json","state_url":"https://pith.science/pith/IVFDRUEAIU2DKKFG6IONGVV5G2/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/IVFDRUEAIU2DKKFG6IONGVV5G2/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-05-26T12:31:52Z","links":{"resolver":"https://pith.science/pith/IVFDRUEAIU2DKKFG6IONGVV5G2","bundle":"https://pith.science/pith/IVFDRUEAIU2DKKFG6IONGVV5G2/bundle.json","state":"https://pith.science/pith/IVFDRUEAIU2DKKFG6IONGVV5G2/state.json","well_known_bundle":"https://pith.science/.well-known/pith/IVFDRUEAIU2DKKFG6IONGVV5G2/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:IVFDRUEAIU2DKKFG6IONGVV5G2","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":"de0a21e05bc62866dbaf18ecf180c737a9b0940aaf908b07421f986766e466c3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2009-12-14T02:25:43Z","title_canon_sha256":"5e11b672383caa1a9b266876647d7a77282f672578672873c925968d5e64a928"},"schema_version":"1.0","source":{"id":"0912.2533","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0912.2533","created_at":"2026-05-18T02:33:56Z"},{"alias_kind":"arxiv_version","alias_value":"0912.2533v1","created_at":"2026-05-18T02:33:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0912.2533","created_at":"2026-05-18T02:33:56Z"},{"alias_kind":"pith_short_12","alias_value":"IVFDRUEAIU2D","created_at":"2026-05-18T12:26:00Z"},{"alias_kind":"pith_short_16","alias_value":"IVFDRUEAIU2DKKFG","created_at":"2026-05-18T12:26:00Z"},{"alias_kind":"pith_short_8","alias_value":"IVFDRUEA","created_at":"2026-05-18T12:26:00Z"}],"graph_snapshots":[{"event_id":"sha256:be74f61b4836c60f270c1c34c114d59723e5f21af347b46ef81d2365dfd66b9a","target":"graph","created_at":"2026-05-18T02:33:56Z","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":"The nuclear pairing condensate is expected to change character from spin-singlet to spin-triplet when the nucleus is very large and the neutron and proton numbers $Z,N$ are equal. We investigate the transition between these two phases within the framework of the Hartree-Fock-Bogoliubov equations, using a zero-range interaction to generate the pairing. We confirm that extremely large nucleus would indeed favor triplet pairing condensates, with the Hamiltonian parameters taken from known systematics. The favored phase is found to depend on the specific orbitals at the Fermi energy. The smallest ","authors_text":"G.F. Bertsch, Y. Luo","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2009-12-14T02:25:43Z","title":"Spin-triplet pairing in large nuclei"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0912.2533","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:cc0582668e6f6ab8d9b03b36b19d87b0430d3ccf15090d1429310a78802bd772","target":"record","created_at":"2026-05-18T02:33:56Z","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":"de0a21e05bc62866dbaf18ecf180c737a9b0940aaf908b07421f986766e466c3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2009-12-14T02:25:43Z","title_canon_sha256":"5e11b672383caa1a9b266876647d7a77282f672578672873c925968d5e64a928"},"schema_version":"1.0","source":{"id":"0912.2533","kind":"arxiv","version":1}},"canonical_sha256":"454a38d08045343528a6f21cd356bd36bf32bfaf22cd56d2b3a00c2ce176c270","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"454a38d08045343528a6f21cd356bd36bf32bfaf22cd56d2b3a00c2ce176c270","first_computed_at":"2026-05-18T02:33:56.697931Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:33:56.697931Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"TQHz/J1sZjsHbaS6q5vDIoIIuLxbx/zuWTSLwCUjTe73r/M/sriByv5tlyeRH6MhK1KxvU9xwvURjetdWXi9Aw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:33:56.698365Z","signed_message":"canonical_sha256_bytes"},"source_id":"0912.2533","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:cc0582668e6f6ab8d9b03b36b19d87b0430d3ccf15090d1429310a78802bd772","sha256:be74f61b4836c60f270c1c34c114d59723e5f21af347b46ef81d2365dfd66b9a"],"state_sha256":"ea4c9e5fea77b4b94d83d2174901d884ec2b67a49f9935dc6e2f5b113f520a56"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Abr3y66byD6t+oDrTJ3q0Ua9WWEbF36F240lP17kFMgtXJK90EIrH+n2u/y4hdd11oPM87HvbcbRIm7whXa2AQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T12:31:52.860557Z","bundle_sha256":"c47d2dcbd7595369e46f34d0f194f9f00b81bea0d81312a1398fd7955de3a387"}}