{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:57EJ4ZKZRQPMLHZARIS3QST5AV","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":"78fb1b159d5a12f1018c17f094ddd290d05c716fd94cae9fd124c46a9ede2850","cross_cats_sorted":["physics.app-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2025-06-20T01:10:40Z","title_canon_sha256":"d36aaa3c027f264ca4048be9a2e78817438bbf6a4d16da143bc24a5609c4a6ce"},"schema_version":"1.0","source":{"id":"2506.16670","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2506.16670","created_at":"2026-07-05T11:24:40Z"},{"alias_kind":"arxiv_version","alias_value":"2506.16670v1","created_at":"2026-07-05T11:24:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2506.16670","created_at":"2026-07-05T11:24:40Z"},{"alias_kind":"pith_short_12","alias_value":"57EJ4ZKZRQPM","created_at":"2026-07-05T11:24:40Z"},{"alias_kind":"pith_short_16","alias_value":"57EJ4ZKZRQPMLHZA","created_at":"2026-07-05T11:24:40Z"},{"alias_kind":"pith_short_8","alias_value":"57EJ4ZKZ","created_at":"2026-07-05T11:24:40Z"}],"graph_snapshots":[{"event_id":"sha256:a1257de7a4155fdd6c2752201756638357ea8fd8fc6fc636f4977009d019965d","target":"graph","created_at":"2026-07-05T11:24:40Z","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/2506.16670/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"AlN has the largest bandgap in the wurtzite III-nitride semiconductor family, making it an ideal barrier for a thin GaN channel to achieve strong carrier confinement in field-effect transistors, analogous to silicon-on-insulator technology. Unlike SiO$_2$/Si/SiO$_2$, AlN/GaN/AlN can be grown fully epitaxially, enabling high carrier mobilities suitable for high-frequency applications. However, developing these heterostructures and related devices has been hindered by challenges in strain management, polarization effects, defect control and charge trapping. Here, the AlN single-crystal high elec","authors_text":"David Anthony Muller, Debdeep Jena, Eungkyun Kim, Huili Grace Xing, Jimy Encomendero, Naomi Pieczulewski, Yu-hsin Chen","cross_cats":["physics.app-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2025-06-20T01:10:40Z","title":"XHEMTs on Ultrawide Bandgap Single-Crystal AlN Substrates"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2506.16670","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:fc1a3e8eca360e1f26cb3e7fc398811f14d5f25b7c7a2c1cc544ba2dbdd8885c","target":"record","created_at":"2026-07-05T11:24:40Z","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":"78fb1b159d5a12f1018c17f094ddd290d05c716fd94cae9fd124c46a9ede2850","cross_cats_sorted":["physics.app-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2025-06-20T01:10:40Z","title_canon_sha256":"d36aaa3c027f264ca4048be9a2e78817438bbf6a4d16da143bc24a5609c4a6ce"},"schema_version":"1.0","source":{"id":"2506.16670","kind":"arxiv","version":1}},"canonical_sha256":"efc89e65598c1ec59f208a25b84a7d054fe613b0b914b1557541aed0020ac40f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"efc89e65598c1ec59f208a25b84a7d054fe613b0b914b1557541aed0020ac40f","first_computed_at":"2026-07-05T11:24:40.453374Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:24:40.453374Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"s3fVBnPnWdjhlNTGmywhjpYafcqy6txiA2w/aQDn3TLRnCet98FIPBG+cbfM69GwwQ7LLDF/FHx9a3VBeCbeAA==","signature_status":"signed_v1","signed_at":"2026-07-05T11:24:40.453864Z","signed_message":"canonical_sha256_bytes"},"source_id":"2506.16670","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:fc1a3e8eca360e1f26cb3e7fc398811f14d5f25b7c7a2c1cc544ba2dbdd8885c","sha256:a1257de7a4155fdd6c2752201756638357ea8fd8fc6fc636f4977009d019965d"],"state_sha256":"f7d4cd395fad22c40de457463cbffc501a5f9be7721228d04b5e6adbdae17adf"}