{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2003:TF65PKC6GPNSK23ULZVHI7FOC3","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":"3eb9afa471657286da2bdd3f13916d4d59e219849545abf4c89127207ed88d00","cross_cats_sorted":["cond-mat.str-el"],"license":"","primary_cat":"cond-mat.supr-con","submitted_at":"2003-03-28T12:53:37Z","title_canon_sha256":"ba402b92476357c8fd83273e06d7c0b7dab8281b6c395d95fd4ed54ceb75116d"},"schema_version":"1.0","source":{"id":"cond-mat/0303608","kind":"arxiv","version":6}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/0303608","created_at":"2026-05-18T01:06:57Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0303608v6","created_at":"2026-05-18T01:06:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0303608","created_at":"2026-05-18T01:06:57Z"},{"alias_kind":"pith_short_12","alias_value":"TF65PKC6GPNS","created_at":"2026-05-18T12:25:52Z"},{"alias_kind":"pith_short_16","alias_value":"TF65PKC6GPNSK23U","created_at":"2026-05-18T12:25:52Z"},{"alias_kind":"pith_short_8","alias_value":"TF65PKC6","created_at":"2026-05-18T12:25:52Z"}],"graph_snapshots":[{"event_id":"sha256:eaaa3f9213be899bf6f901c2a673ca6a7adcf5d0c68b1cf8ca925554dc95f730","target":"graph","created_at":"2026-05-18T01:06:57Z","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 two-dimensional boson-fermion model of high-temperature superconductors, numerically studied by Domanski (Phys. Rev. B v.66, 134512 (2002)) is not a superconductor. The critical temperature of the model is zero for any symmetry of the order parameter. The opposite conclusion advocated by\n Domanski and some other authors stems from an erroneous mean-field approximation neglecting the boson self-energy. The approximation is qualitatively incorrect even in three dimensions. Taking into account the boson self-energy changes the phase transition in 3D BFM, which is not a mean-field second-order","authors_text":"A. S. Alexandrov","cross_cats":["cond-mat.str-el"],"headline":"","license":"","primary_cat":"cond-mat.supr-con","submitted_at":"2003-03-28T12:53:37Z","title":"Comment on 'Effect of on-site Coulomb repulsion on superconductivity in the boson-fermion model' (T. Domanski, Phys. Rev. B v.66, 134512 (2002))"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0303608","kind":"arxiv","version":6},"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:ad6d01f2341dd2523f031606466a3d0b0629460adf9be066d11d62df89fb5965","target":"record","created_at":"2026-05-18T01:06:57Z","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":"3eb9afa471657286da2bdd3f13916d4d59e219849545abf4c89127207ed88d00","cross_cats_sorted":["cond-mat.str-el"],"license":"","primary_cat":"cond-mat.supr-con","submitted_at":"2003-03-28T12:53:37Z","title_canon_sha256":"ba402b92476357c8fd83273e06d7c0b7dab8281b6c395d95fd4ed54ceb75116d"},"schema_version":"1.0","source":{"id":"cond-mat/0303608","kind":"arxiv","version":6}},"canonical_sha256":"997dd7a85e33db256b745e6a747cae16ce33fa2273342bb05e72c87cea1c143b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"997dd7a85e33db256b745e6a747cae16ce33fa2273342bb05e72c87cea1c143b","first_computed_at":"2026-05-18T01:06:57.719883Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:06:57.719883Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"e/U4FXRhXLdsyLnDTv76u4k/iKd8KySNmMHbYuv6rY1WGM0TniKE0sMa1h5Yd5+ppfHO9ASXBzgPCw3en/+ZDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:06:57.720514Z","signed_message":"canonical_sha256_bytes"},"source_id":"cond-mat/0303608","source_kind":"arxiv","source_version":6}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ad6d01f2341dd2523f031606466a3d0b0629460adf9be066d11d62df89fb5965","sha256:eaaa3f9213be899bf6f901c2a673ca6a7adcf5d0c68b1cf8ca925554dc95f730"],"state_sha256":"72fd37bd4ed32741902b555e15015f635a1795ad2addd70d43274ba635a611e5"}