{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:7JFLNKTRH5RPG4DJATA7GVDBOF","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":"b59da3e3fed29e1b03d12b631fe4e771b1fdde01919e41689e0ad90888aa7370","cross_cats_sorted":["cond-mat.supr-con"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2025-02-28T07:25:26Z","title_canon_sha256":"3748a3357794eee521ab8b635d1eedf12a3daec8a8a6465cd1d6d50b4cfbc956"},"schema_version":"1.0","source":{"id":"2502.20796","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2502.20796","created_at":"2026-07-05T10:21:39Z"},{"alias_kind":"arxiv_version","alias_value":"2502.20796v1","created_at":"2026-07-05T10:21:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2502.20796","created_at":"2026-07-05T10:21:39Z"},{"alias_kind":"pith_short_12","alias_value":"7JFLNKTRH5RP","created_at":"2026-07-05T10:21:39Z"},{"alias_kind":"pith_short_16","alias_value":"7JFLNKTRH5RPG4DJ","created_at":"2026-07-05T10:21:39Z"},{"alias_kind":"pith_short_8","alias_value":"7JFLNKTR","created_at":"2026-07-05T10:21:39Z"}],"graph_snapshots":[{"event_id":"sha256:6c014d0e171e0bc585d1e2eba0eeb523a2e87cb8c82fbaadc26624f69e7cb99e","target":"graph","created_at":"2026-07-05T10:21:39Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2502.20796/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The heavy fermion (HF) state of $d$-electron systems is of great current interest since it exhibits various exotic phases and phenomena that are reminiscent of the Kondo effect in $f$-electron HF systems. Here, we present a combined infrared spectroscopy and first-principles band structure calculation study of the $3d$-electron HF compound YFe$_2$Ge$_2$. The infrared response exhibits several charge-dynamical hallmarks of HF and a corresponding scaling behavior that resemble those of the $f$-electron HF systems. In particular, the low-temperature spectra reveal a dramatic narrowing of the Drud","authors_text":"Bing Xu, Christian Bernhard, Chunhong Li, Hongliang Wo, Jun Zhao, Rui Liu, Shaohui Yi, Xianggang Qiu, Zhiping Yin, Zhiyu Liao","cross_cats":["cond-mat.supr-con"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2025-02-28T07:25:26Z","title":"Unraveling the origin of Kondo-like behavior in the 3$d$-electron heavy-fermion compound YFe$_{2}$Ge$_{2}$"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2502.20796","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":"sha256:6b37991ac375136fc97e991edd7ccdff22b4400bddf29787ed16a0f1bc57e0cb","target":"record","created_at":"2026-07-05T10:21:39Z","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":"b59da3e3fed29e1b03d12b631fe4e771b1fdde01919e41689e0ad90888aa7370","cross_cats_sorted":["cond-mat.supr-con"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2025-02-28T07:25:26Z","title_canon_sha256":"3748a3357794eee521ab8b635d1eedf12a3daec8a8a6465cd1d6d50b4cfbc956"},"schema_version":"1.0","source":{"id":"2502.20796","kind":"arxiv","version":1}},"canonical_sha256":"fa4ab6aa713f62f3706904c1f35461714553ca72ffbe125e488b3e2f8dc23053","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"fa4ab6aa713f62f3706904c1f35461714553ca72ffbe125e488b3e2f8dc23053","first_computed_at":"2026-07-05T10:21:39.909971Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:21:39.909971Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"luUJTNnx6NfnC+Nr6IYs46UgFCIqGIzTd8gnhhFfXr39refiOHQYexLNp/eIDRbKD5Yb9RsSAnInmheTlfkoAw==","signature_status":"signed_v1","signed_at":"2026-07-05T10:21:39.910473Z","signed_message":"canonical_sha256_bytes"},"source_id":"2502.20796","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6b37991ac375136fc97e991edd7ccdff22b4400bddf29787ed16a0f1bc57e0cb","sha256:6c014d0e171e0bc585d1e2eba0eeb523a2e87cb8c82fbaadc26624f69e7cb99e"],"state_sha256":"d55123ebeab6242fdd806744a62c2e1d4ee3b2ebbcdf2b87e601a4bee51df478"}