{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2013:KFFOR5QIC7HIVUU6OS4BMLJQ55","short_pith_number":"pith:KFFOR5QI","schema_version":"1.0","canonical_sha256":"514ae8f60817ce8ad29e74b8162d30ef7fc595dec77579a16e0f602b9c74ade8","source":{"kind":"arxiv","id":"1310.4597","version":1},"attestation_state":"computed","paper":{"title":"Pseudogap and singlet formation in cuprate and organic superconductors","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci"],"primary_cat":"cond-mat.str-el","authors_text":"J. Merino, O. Gunnarsson","submitted_at":"2013-10-17T07:20:02Z","abstract_excerpt":"The pseudogap phase occurring in cuprate and organic superconductors is analyzed based on the dynamical cluster approximation (DCA) approach to the Hubbard model. A cluster embedded in a self-consistent bath is studied. With increasing Coulomb repulsion, U, the antinodal point [k=(pi,0)] displays a gradual suppression of spectral density of states around the Fermi energy which is not observed at the nodal point [k=(pi/2,pi/2)]. The opening of the antinodal pseudogap is related to the internal structure of the cluster and the much weaker bath-cluster couplings at the antinodal than nodal point."},"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":"1310.4597","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2013-10-17T07:20:02Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"74a917817f2777be9b8563f6b21e101ef11da6af2a9f8568d035cd36fb9d32a6","abstract_canon_sha256":"3b60cb4f33a8e50797abac2240285f20875deb8607d89eb5a7b2bb5933ddc4d9"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:48:37.245885Z","signature_b64":"vNeP7CTwBUxkvuiZYmmO8sOUoeqs9ntuTxDkxGOks0t6XNbMIdX961g05WTYGYUvjdd5bqgcOiW3cLeXqQCtBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"514ae8f60817ce8ad29e74b8162d30ef7fc595dec77579a16e0f602b9c74ade8","last_reissued_at":"2026-05-18T02:48:37.245414Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:48:37.245414Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Pseudogap and singlet formation in cuprate and organic superconductors","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci"],"primary_cat":"cond-mat.str-el","authors_text":"J. Merino, O. Gunnarsson","submitted_at":"2013-10-17T07:20:02Z","abstract_excerpt":"The pseudogap phase occurring in cuprate and organic superconductors is analyzed based on the dynamical cluster approximation (DCA) approach to the Hubbard model. A cluster embedded in a self-consistent bath is studied. With increasing Coulomb repulsion, U, the antinodal point [k=(pi,0)] displays a gradual suppression of spectral density of states around the Fermi energy which is not observed at the nodal point [k=(pi/2,pi/2)]. The opening of the antinodal pseudogap is related to the internal structure of the cluster and the much weaker bath-cluster couplings at the antinodal than nodal point."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1310.4597","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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1310.4597","created_at":"2026-05-18T02:48:37.245490+00:00"},{"alias_kind":"arxiv_version","alias_value":"1310.4597v1","created_at":"2026-05-18T02:48:37.245490+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1310.4597","created_at":"2026-05-18T02:48:37.245490+00:00"},{"alias_kind":"pith_short_12","alias_value":"KFFOR5QIC7HI","created_at":"2026-05-18T12:27:49.015174+00:00"},{"alias_kind":"pith_short_16","alias_value":"KFFOR5QIC7HIVUU6","created_at":"2026-05-18T12:27:49.015174+00:00"},{"alias_kind":"pith_short_8","alias_value":"KFFOR5QI","created_at":"2026-05-18T12:27:49.015174+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/KFFOR5QIC7HIVUU6OS4BMLJQ55","json":"https://pith.science/pith/KFFOR5QIC7HIVUU6OS4BMLJQ55.json","graph_json":"https://pith.science/api/pith-number/KFFOR5QIC7HIVUU6OS4BMLJQ55/graph.json","events_json":"https://pith.science/api/pith-number/KFFOR5QIC7HIVUU6OS4BMLJQ55/events.json","paper":"https://pith.science/paper/KFFOR5QI"},"agent_actions":{"view_html":"https://pith.science/pith/KFFOR5QIC7HIVUU6OS4BMLJQ55","download_json":"https://pith.science/pith/KFFOR5QIC7HIVUU6OS4BMLJQ55.json","view_paper":"https://pith.science/paper/KFFOR5QI","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1310.4597&json=true","fetch_graph":"https://pith.science/api/pith-number/KFFOR5QIC7HIVUU6OS4BMLJQ55/graph.json","fetch_events":"https://pith.science/api/pith-number/KFFOR5QIC7HIVUU6OS4BMLJQ55/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/KFFOR5QIC7HIVUU6OS4BMLJQ55/action/timestamp_anchor","attest_storage":"https://pith.science/pith/KFFOR5QIC7HIVUU6OS4BMLJQ55/action/storage_attestation","attest_author":"https://pith.science/pith/KFFOR5QIC7HIVUU6OS4BMLJQ55/action/author_attestation","sign_citation":"https://pith.science/pith/KFFOR5QIC7HIVUU6OS4BMLJQ55/action/citation_signature","submit_replication":"https://pith.science/pith/KFFOR5QIC7HIVUU6OS4BMLJQ55/action/replication_record"}},"created_at":"2026-05-18T02:48:37.245490+00:00","updated_at":"2026-05-18T02:48:37.245490+00:00"}