{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:J553ZXLOYLMLAASRWAIWTX4UTO","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":"9760db8e57514a8901d07373f559817fe5930be44251ca94ddb0662f0f8ac3e2","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2024-06-08T07:12:29Z","title_canon_sha256":"5dfdac5bb735945706cd2224fa8d5c014acdbefde9648db46b276dd306735b64"},"schema_version":"1.0","source":{"id":"2406.05380","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2406.05380","created_at":"2026-07-05T09:31:46Z"},{"alias_kind":"arxiv_version","alias_value":"2406.05380v2","created_at":"2026-07-05T09:31:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2406.05380","created_at":"2026-07-05T09:31:46Z"},{"alias_kind":"pith_short_12","alias_value":"J553ZXLOYLML","created_at":"2026-07-05T09:31:46Z"},{"alias_kind":"pith_short_16","alias_value":"J553ZXLOYLMLAASR","created_at":"2026-07-05T09:31:46Z"},{"alias_kind":"pith_short_8","alias_value":"J553ZXLO","created_at":"2026-07-05T09:31:46Z"}],"graph_snapshots":[{"event_id":"sha256:4a5db9067516d3af578ae0d6256a6f77c5ec9cd16867c679c06676c9ce76af51","target":"graph","created_at":"2026-07-05T09:31:46Z","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/2406.05380/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Obstructed atomic insulator is recently proposed as an unconventional material, in which electric charge centers localized at sites away from the atoms. A half-filling surface state would emerge at specific interfaces cutting through these charge centers and avoid intersecting any atoms. In this article, we utilized angle-resolved photoemission spectroscopy and density functional theory calculations to study one of the obstructed atomic insulator candidates, NiP$_2$. A floating surface state with large effective mass that is isolated from all bulk states is resolved on the (100) cleavage plane","authors_text":"Bing Li, Chang Liu, Dawei Shen, Jia-Yu Liu, Kohei Yamagami, Mao Ye, Meng Zeng, Ming-Yuan Zhu, Rong-Hao Luo, Shengtao Cui, Xiang-Rui Liu, Xiao-Ming Ma, Yi Liu, Yuanwen Feng, Yue Dai, Yu-Jie Hao, Zhengtai Liu, Zhe Sun","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2024-06-08T07:12:29Z","title":"Observation of floating surface state in obstructed atomic insulator candidate NiP$_2$"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2406.05380","kind":"arxiv","version":2},"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":"sha256:782246a2943cde3c51e28263b5e19b6cf1517a9747a8987157c48f1222459be7","target":"record","created_at":"2026-07-05T09:31:46Z","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":"9760db8e57514a8901d07373f559817fe5930be44251ca94ddb0662f0f8ac3e2","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2024-06-08T07:12:29Z","title_canon_sha256":"5dfdac5bb735945706cd2224fa8d5c014acdbefde9648db46b276dd306735b64"},"schema_version":"1.0","source":{"id":"2406.05380","kind":"arxiv","version":2}},"canonical_sha256":"4f7bbcdd6ec2d8b00251b01169df949b984abacecc4ac21b9321c9eec65b27ce","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4f7bbcdd6ec2d8b00251b01169df949b984abacecc4ac21b9321c9eec65b27ce","first_computed_at":"2026-07-05T09:31:46.698685Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T09:31:46.698685Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"LeBk+1P88AqTHriCwP1giVdmYfNItTp2a2kXqTU4i3+PdjoQcm4RHcYUeWyA8Z5mXvEYeqKunTdKa6iPPKqjCg==","signature_status":"signed_v1","signed_at":"2026-07-05T09:31:46.699322Z","signed_message":"canonical_sha256_bytes"},"source_id":"2406.05380","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:782246a2943cde3c51e28263b5e19b6cf1517a9747a8987157c48f1222459be7","sha256:4a5db9067516d3af578ae0d6256a6f77c5ec9cd16867c679c06676c9ce76af51"],"state_sha256":"76b7183d628d735115ceb338c508b6ec1b3285177bdeb68fdd9dc4efb211865b"}