{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2026:4JXFG7N6Y6K6QNDTZIF5ZBUYVM","short_pith_number":"pith:4JXFG7N6","schema_version":"1.0","canonical_sha256":"e26e537dbec795e83473ca0bdc8698ab17549569568efed3d8eaba19580047f9","source":{"kind":"arxiv","id":"2605.22128","version":1},"attestation_state":"computed","paper":{"title":"Superconductivity in doped spin multimer systems","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.str-el"],"primary_cat":"cond-mat.supr-con","authors_text":"Kazuhiko Kuroki, Masataka Kakoi, Ritsuki Hirabayashi, Ryota Ueda, Tatsuya Kaneko","submitted_at":"2026-05-21T08:04:46Z","abstract_excerpt":"Binding energy, which quantifies pair formation, is a key factor in the emergence of superconductivity. Here, we show that even when multiple spins are complexly coupled, hole-doped systems, which can be mapped onto the universal hardcore boson model in the strong-binding-energy limit, exhibit promising signatures of superconductivity. We analytically and numerically demonstrate this concept in the double Kondo lattice model. Using the density-matrix renormalization group method, we show that a pairing state is maintained via a crossover even for parameters away from the strong-coupling regime"},"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":"2605.22128","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2026-05-21T08:04:46Z","cross_cats_sorted":["cond-mat.str-el"],"title_canon_sha256":"69e5389403d6b84a4f26c3d6a568424d0730a7e5da1cffe55a1c6c0b52066a1e","abstract_canon_sha256":"696c5bc766ea316d34bd7b8112cb9c757992ccc038163c542c5d1d69c2c6f949"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-22T01:04:27.239772Z","signature_b64":"6Hpitm/tvEy58y/l3l0rbuVI0ejTAZB82URfxH8bTj78Byg1jwL0mkkJ1W9vYuNXiNiXJAffnSu+Y1/uSVh7Cw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e26e537dbec795e83473ca0bdc8698ab17549569568efed3d8eaba19580047f9","last_reissued_at":"2026-05-22T01:04:27.239094Z","signature_status":"signed_v1","first_computed_at":"2026-05-22T01:04:27.239094Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Superconductivity in doped spin multimer systems","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.str-el"],"primary_cat":"cond-mat.supr-con","authors_text":"Kazuhiko Kuroki, Masataka Kakoi, Ritsuki Hirabayashi, Ryota Ueda, Tatsuya Kaneko","submitted_at":"2026-05-21T08:04:46Z","abstract_excerpt":"Binding energy, which quantifies pair formation, is a key factor in the emergence of superconductivity. Here, we show that even when multiple spins are complexly coupled, hole-doped systems, which can be mapped onto the universal hardcore boson model in the strong-binding-energy limit, exhibit promising signatures of superconductivity. We analytically and numerically demonstrate this concept in the double Kondo lattice model. Using the density-matrix renormalization group method, we show that a pairing state is maintained via a crossover even for parameters away from the strong-coupling regime"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.22128","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2605.22128/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2605.22128","created_at":"2026-05-22T01:04:27.239215+00:00"},{"alias_kind":"arxiv_version","alias_value":"2605.22128v1","created_at":"2026-05-22T01:04:27.239215+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.22128","created_at":"2026-05-22T01:04:27.239215+00:00"},{"alias_kind":"pith_short_12","alias_value":"4JXFG7N6Y6K6","created_at":"2026-05-22T01:04:27.239215+00:00"},{"alias_kind":"pith_short_16","alias_value":"4JXFG7N6Y6K6QNDT","created_at":"2026-05-22T01:04:27.239215+00:00"},{"alias_kind":"pith_short_8","alias_value":"4JXFG7N6","created_at":"2026-05-22T01:04:27.239215+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/4JXFG7N6Y6K6QNDTZIF5ZBUYVM","json":"https://pith.science/pith/4JXFG7N6Y6K6QNDTZIF5ZBUYVM.json","graph_json":"https://pith.science/api/pith-number/4JXFG7N6Y6K6QNDTZIF5ZBUYVM/graph.json","events_json":"https://pith.science/api/pith-number/4JXFG7N6Y6K6QNDTZIF5ZBUYVM/events.json","paper":"https://pith.science/paper/4JXFG7N6"},"agent_actions":{"view_html":"https://pith.science/pith/4JXFG7N6Y6K6QNDTZIF5ZBUYVM","download_json":"https://pith.science/pith/4JXFG7N6Y6K6QNDTZIF5ZBUYVM.json","view_paper":"https://pith.science/paper/4JXFG7N6","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2605.22128&json=true","fetch_graph":"https://pith.science/api/pith-number/4JXFG7N6Y6K6QNDTZIF5ZBUYVM/graph.json","fetch_events":"https://pith.science/api/pith-number/4JXFG7N6Y6K6QNDTZIF5ZBUYVM/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/4JXFG7N6Y6K6QNDTZIF5ZBUYVM/action/timestamp_anchor","attest_storage":"https://pith.science/pith/4JXFG7N6Y6K6QNDTZIF5ZBUYVM/action/storage_attestation","attest_author":"https://pith.science/pith/4JXFG7N6Y6K6QNDTZIF5ZBUYVM/action/author_attestation","sign_citation":"https://pith.science/pith/4JXFG7N6Y6K6QNDTZIF5ZBUYVM/action/citation_signature","submit_replication":"https://pith.science/pith/4JXFG7N6Y6K6QNDTZIF5ZBUYVM/action/replication_record"}},"created_at":"2026-05-22T01:04:27.239215+00:00","updated_at":"2026-05-22T01:04:27.239215+00:00"}