{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:LK3AGN2BPQ73FA4SGLE3VINT34","short_pith_number":"pith:LK3AGN2B","canonical_record":{"source":{"id":"1107.4281","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2011-07-21T14:07:14Z","cross_cats_sorted":[],"title_canon_sha256":"74eee8175ba805c480bdbfdb6d09738d0facb542a526af5cb8fa4852c74d00fc","abstract_canon_sha256":"8892f149a8009d6d82ec6ef3765df3bca853242fc9194bb8290247b83d259f73"},"schema_version":"1.0"},"canonical_sha256":"5ab60337417c3fb2839232c9baa1b3df2484c31d7ebf31640ecccf733e5b522c","source":{"kind":"arxiv","id":"1107.4281","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1107.4281","created_at":"2026-05-18T04:12:33Z"},{"alias_kind":"arxiv_version","alias_value":"1107.4281v1","created_at":"2026-05-18T04:12:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1107.4281","created_at":"2026-05-18T04:12:33Z"},{"alias_kind":"pith_short_12","alias_value":"LK3AGN2BPQ73","created_at":"2026-05-18T12:26:34Z"},{"alias_kind":"pith_short_16","alias_value":"LK3AGN2BPQ73FA4S","created_at":"2026-05-18T12:26:34Z"},{"alias_kind":"pith_short_8","alias_value":"LK3AGN2B","created_at":"2026-05-18T12:26:34Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:LK3AGN2BPQ73FA4SGLE3VINT34","target":"record","payload":{"canonical_record":{"source":{"id":"1107.4281","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2011-07-21T14:07:14Z","cross_cats_sorted":[],"title_canon_sha256":"74eee8175ba805c480bdbfdb6d09738d0facb542a526af5cb8fa4852c74d00fc","abstract_canon_sha256":"8892f149a8009d6d82ec6ef3765df3bca853242fc9194bb8290247b83d259f73"},"schema_version":"1.0"},"canonical_sha256":"5ab60337417c3fb2839232c9baa1b3df2484c31d7ebf31640ecccf733e5b522c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:12:33.464669Z","signature_b64":"jJuISJhhmaL/YlbMx9KQxqkO9+Bl912zpLr5FdmN1SX6UOMtU2D5sBQtkU87IdEQSQj1lpG2EdovmRiXLsFOAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5ab60337417c3fb2839232c9baa1b3df2484c31d7ebf31640ecccf733e5b522c","last_reissued_at":"2026-05-18T04:12:33.463961Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:12:33.463961Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1107.4281","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":"2026-05-18T04:12:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OirIvRcyp5DieQpdZYdB3DWY0+T877s2kMEdtg8SZlC32269BmggBijBQDLZM+xeshzOMkfeYRXFL8MUfLqRBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-23T18:00:06.226191Z"},"content_sha256":"5bd5a4285bab6cd1e6850c040afb0c9bd4f378458a3b515f4da9553930207ffa","schema_version":"1.0","event_id":"sha256:5bd5a4285bab6cd1e6850c040afb0c9bd4f378458a3b515f4da9553930207ffa"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:LK3AGN2BPQ73FA4SGLE3VINT34","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Pairing and alpha-like quartet condensation in N=Z nuclei","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"nucl-th","authors_text":"D. Negrea, J. Dukelsky, N. Sandulescu","submitted_at":"2011-07-21T14:07:14Z","abstract_excerpt":"We discuss the treatment of isovector pairing by an alpha-like quartet condensate which conserves exactly the particle number, the spin and the isospin. The results show that the quartet condensate describes accurately the isovector pairing correlations in the ground state of systems with an equal number of protons and neutrons"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1107.4281","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":"2026-05-18T04:12:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"63JjvBQOuoOLSh5KqrXNBOGfU+mnBpdryQ2acjOZovn1TVbMpB4HeksgcZv29nfQW8hEAx6BTiF64D6k7Me5Bw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-23T18:00:06.226541Z"},"content_sha256":"5dce2265b8ea05d52b364a95889360e403895b7468d9af4b7b27eca88171ec69","schema_version":"1.0","event_id":"sha256:5dce2265b8ea05d52b364a95889360e403895b7468d9af4b7b27eca88171ec69"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/LK3AGN2BPQ73FA4SGLE3VINT34/bundle.json","state_url":"https://pith.science/pith/LK3AGN2BPQ73FA4SGLE3VINT34/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/LK3AGN2BPQ73FA4SGLE3VINT34/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":"2026-06-23T18:00:06Z","links":{"resolver":"https://pith.science/pith/LK3AGN2BPQ73FA4SGLE3VINT34","bundle":"https://pith.science/pith/LK3AGN2BPQ73FA4SGLE3VINT34/bundle.json","state":"https://pith.science/pith/LK3AGN2BPQ73FA4SGLE3VINT34/state.json","well_known_bundle":"https://pith.science/.well-known/pith/LK3AGN2BPQ73FA4SGLE3VINT34/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:LK3AGN2BPQ73FA4SGLE3VINT34","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":"8892f149a8009d6d82ec6ef3765df3bca853242fc9194bb8290247b83d259f73","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2011-07-21T14:07:14Z","title_canon_sha256":"74eee8175ba805c480bdbfdb6d09738d0facb542a526af5cb8fa4852c74d00fc"},"schema_version":"1.0","source":{"id":"1107.4281","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1107.4281","created_at":"2026-05-18T04:12:33Z"},{"alias_kind":"arxiv_version","alias_value":"1107.4281v1","created_at":"2026-05-18T04:12:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1107.4281","created_at":"2026-05-18T04:12:33Z"},{"alias_kind":"pith_short_12","alias_value":"LK3AGN2BPQ73","created_at":"2026-05-18T12:26:34Z"},{"alias_kind":"pith_short_16","alias_value":"LK3AGN2BPQ73FA4S","created_at":"2026-05-18T12:26:34Z"},{"alias_kind":"pith_short_8","alias_value":"LK3AGN2B","created_at":"2026-05-18T12:26:34Z"}],"graph_snapshots":[{"event_id":"sha256:5dce2265b8ea05d52b364a95889360e403895b7468d9af4b7b27eca88171ec69","target":"graph","created_at":"2026-05-18T04:12:33Z","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 discuss the treatment of isovector pairing by an alpha-like quartet condensate which conserves exactly the particle number, the spin and the isospin. The results show that the quartet condensate describes accurately the isovector pairing correlations in the ground state of systems with an equal number of protons and neutrons","authors_text":"D. Negrea, J. Dukelsky, N. Sandulescu","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2011-07-21T14:07:14Z","title":"Pairing and alpha-like quartet condensation in N=Z nuclei"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1107.4281","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":"sha256:5bd5a4285bab6cd1e6850c040afb0c9bd4f378458a3b515f4da9553930207ffa","target":"record","created_at":"2026-05-18T04:12:33Z","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":"8892f149a8009d6d82ec6ef3765df3bca853242fc9194bb8290247b83d259f73","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2011-07-21T14:07:14Z","title_canon_sha256":"74eee8175ba805c480bdbfdb6d09738d0facb542a526af5cb8fa4852c74d00fc"},"schema_version":"1.0","source":{"id":"1107.4281","kind":"arxiv","version":1}},"canonical_sha256":"5ab60337417c3fb2839232c9baa1b3df2484c31d7ebf31640ecccf733e5b522c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5ab60337417c3fb2839232c9baa1b3df2484c31d7ebf31640ecccf733e5b522c","first_computed_at":"2026-05-18T04:12:33.463961Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:12:33.463961Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"jJuISJhhmaL/YlbMx9KQxqkO9+Bl912zpLr5FdmN1SX6UOMtU2D5sBQtkU87IdEQSQj1lpG2EdovmRiXLsFOAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T04:12:33.464669Z","signed_message":"canonical_sha256_bytes"},"source_id":"1107.4281","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5bd5a4285bab6cd1e6850c040afb0c9bd4f378458a3b515f4da9553930207ffa","sha256:5dce2265b8ea05d52b364a95889360e403895b7468d9af4b7b27eca88171ec69"],"state_sha256":"da291006535b5150fff2a3bbf952683b5369999c1f722805639449c6bf9ade75"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8IEcKzaBBfpSnVrXQpdi7vF2UIL6JuixMGthrKnnPic+xJJZi7Q++4/SO1z8OO7LvJTqfHi4Uv+jxt13iM4NBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-23T18:00:06.228333Z","bundle_sha256":"cb0e2ce2f95a7bc2c43d2997c64835259544a4b10b04772959b57a7afd1b5952"}}