{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:RNBTUVX2MX2BVGDLOASHKHOMQU","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":"bbfd3da04a612ef3a535123597874ff9271e997382b79005d3cea4c0dfdfe25c","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.str-el","submitted_at":"2023-05-26T12:04:59Z","title_canon_sha256":"c4789d1b96090d0da0ce04a10542d3db420fd81e071b77db9183c6995e32e71d"},"schema_version":"1.0","source":{"id":"2305.16853","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2305.16853","created_at":"2026-07-05T06:38:58Z"},{"alias_kind":"arxiv_version","alias_value":"2305.16853v1","created_at":"2026-07-05T06:38:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2305.16853","created_at":"2026-07-05T06:38:58Z"},{"alias_kind":"pith_short_12","alias_value":"RNBTUVX2MX2B","created_at":"2026-07-05T06:38:58Z"},{"alias_kind":"pith_short_16","alias_value":"RNBTUVX2MX2BVGDL","created_at":"2026-07-05T06:38:58Z"},{"alias_kind":"pith_short_8","alias_value":"RNBTUVX2","created_at":"2026-07-05T06:38:58Z"}],"graph_snapshots":[{"event_id":"sha256:b5b263e5bcc2ec659c69dda600b4a4037345b455832bc8a7e464d01f2d8f61cf","target":"graph","created_at":"2026-07-05T06:38:58Z","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/2305.16853/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We have synthesized new Tsai-type Yb-based intermediate-valence approximant crystals (ACs) with different degree of approximation to quasicrystal, Zn--Au--Yb 1/1 and 2/1 AC, and studied the external pressure effect on their Yb mean-valence $\\nu$. Whereas 1/1 AC distinctly exhibits a first-order-like jump in $\\nu$ at a transition pressure $P_{\\rm v}$, 2/1 AC only shows an indistinct anomaly at $P_{\\rm v}$. We have also studied the pressure dependence of the $\\nu$ of Au--Al--Yb 1/1 AC, which is a prototypal AC exhibiting pressure-induced quantum criticality. It shows a continuous valence anomaly","authors_text":"Hideyuki Ando, Hirofumi Ishii, Hitoshi Yamaoka, Keiichiro Imura, Noriaki K. Sato, Noriyuki Kabeya, Nozomu Hiraoka, Tsutomu Ishimasa, Yuki Yoneyama","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.str-el","submitted_at":"2023-05-26T12:04:59Z","title":"Variation of Pressure-Induced Valence Transition with Approximation Degree in Yb-Based Quasicrystalline Approximants"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2305.16853","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":"sha256:8ddece5c6eda86bc03529eb91bfdfa5d249becef095df7f541a9d7bf05ce1f01","target":"record","created_at":"2026-07-05T06:38:58Z","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":"bbfd3da04a612ef3a535123597874ff9271e997382b79005d3cea4c0dfdfe25c","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.str-el","submitted_at":"2023-05-26T12:04:59Z","title_canon_sha256":"c4789d1b96090d0da0ce04a10542d3db420fd81e071b77db9183c6995e32e71d"},"schema_version":"1.0","source":{"id":"2305.16853","kind":"arxiv","version":1}},"canonical_sha256":"8b433a56fa65f41a986b7024751dcc8536011d9bdbb0bb0c431bb643892a2566","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8b433a56fa65f41a986b7024751dcc8536011d9bdbb0bb0c431bb643892a2566","first_computed_at":"2026-07-05T06:38:58.386291Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T06:38:58.386291Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ZZzAgs03VqqwIxj9OxcAw9mFsyjJsYBUZuBvn5Vi8XxLG0HK7+nV4STjxiASXycpW0mfiOlqIl/evysGzdjlCQ==","signature_status":"signed_v1","signed_at":"2026-07-05T06:38:58.386815Z","signed_message":"canonical_sha256_bytes"},"source_id":"2305.16853","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8ddece5c6eda86bc03529eb91bfdfa5d249becef095df7f541a9d7bf05ce1f01","sha256:b5b263e5bcc2ec659c69dda600b4a4037345b455832bc8a7e464d01f2d8f61cf"],"state_sha256":"a250b27ded01df24c695805456388dd89cfe664aaa087869b50c06075a2d7d21"}