{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:ZRNQF3DWXROXCBSH56OFXBUQAJ","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":"2d4b36deb99bfd4bee7e75f562272e5726750affb30fe30d790ac2b3e2f64217","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2017-12-12T03:37:20Z","title_canon_sha256":"4c707c99cbaff229d3686e336d84a14ba20fbd88307ea602649740c760d8729c"},"schema_version":"1.0","source":{"id":"1712.04113","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1712.04113","created_at":"2026-05-18T00:28:09Z"},{"alias_kind":"arxiv_version","alias_value":"1712.04113v1","created_at":"2026-05-18T00:28:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1712.04113","created_at":"2026-05-18T00:28:09Z"},{"alias_kind":"pith_short_12","alias_value":"ZRNQF3DWXROX","created_at":"2026-05-18T12:31:59Z"},{"alias_kind":"pith_short_16","alias_value":"ZRNQF3DWXROXCBSH","created_at":"2026-05-18T12:31:59Z"},{"alias_kind":"pith_short_8","alias_value":"ZRNQF3DW","created_at":"2026-05-18T12:31:59Z"}],"graph_snapshots":[{"event_id":"sha256:93387b256ab022a8b7d892e38bc0337e476e33bbca37588cfc821d56ec704dcc","target":"graph","created_at":"2026-05-18T00:28:09Z","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 study the electronic structure of Tsai-type cluster-based quasicrystalline approximants, Au$_{64}$Ge$_{22}$Yb$_{14}$ (AGY-I), Au$_{63.5}$Ge$_{20.5}$Yb$_{16}$ (AGY-II), and Zn$_{85.4}$Yb$_{14.6}$ (Zn-Yb), by means of photoemission spectroscopy. In the valence band hard x-ray photoemission spectra of AGY-II and Zn-Yb, we separately observe a fully occupied Yb 4$f$ state and a valence fluctuation derived Kondo resonance peak, reflecting two inequivalent Yb sites, a single Yb atom in the cluster center and its surrounding Yb icosahedron, respectively. The fully occupied 4$f$ signal is absent in","authors_text":"A. P. Tsai, K. Deguchi, K. Imura, K. Tamasaku, K. Tanaka, M. Matsunami, M. Oura, N. K. Sato, S. Ideta, T. Ishikawa, T. Ishimasa, T. Takeuchi, T. Yamada","cross_cats":["cond-mat.mtrl-sci"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2017-12-12T03:37:20Z","title":"Direct observation of heterogeneous valence state in Yb-based quasicrystalline approximants"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1712.04113","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":"sha256:3817f5be2a8e181fabc48f7fdd258f30543995fdf2c28db753e71b4fc64d4895","target":"record","created_at":"2026-05-18T00:28:09Z","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":"2d4b36deb99bfd4bee7e75f562272e5726750affb30fe30d790ac2b3e2f64217","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2017-12-12T03:37:20Z","title_canon_sha256":"4c707c99cbaff229d3686e336d84a14ba20fbd88307ea602649740c760d8729c"},"schema_version":"1.0","source":{"id":"1712.04113","kind":"arxiv","version":1}},"canonical_sha256":"cc5b02ec76bc5d710647ef9c5b8690025812cd63b644c0fc50b04940a2e803b5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"cc5b02ec76bc5d710647ef9c5b8690025812cd63b644c0fc50b04940a2e803b5","first_computed_at":"2026-05-18T00:28:09.136680Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:28:09.136680Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"+J7ww7gufMBGKQivsQWJz7rdmQP85sqb9BJabBaO53ZKWLmf2kphYTW5J8pgy9ytK09bPK6KosUwLXpuhJSnAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:28:09.137397Z","signed_message":"canonical_sha256_bytes"},"source_id":"1712.04113","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3817f5be2a8e181fabc48f7fdd258f30543995fdf2c28db753e71b4fc64d4895","sha256:93387b256ab022a8b7d892e38bc0337e476e33bbca37588cfc821d56ec704dcc"],"state_sha256":"5049556d6ef71b230c876ce81c4c1fb5d7ca45544b50849db2ee10368b90b4c0"}