{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:CUEK7SH2NVTLF4J2WWRYQOGFQ5","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":"d2b5f24c63bdd54e13d4c92890e06ff4a2bc4542fc3846a833e7b9a54c9844f4","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2021-06-21T08:39:47Z","title_canon_sha256":"2eebb389a47e379c492f7dad0c5c62390a3d51f3c64fd54602ede1f1aead151a"},"schema_version":"1.0","source":{"id":"2106.10922","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2106.10922","created_at":"2026-07-05T03:22:35Z"},{"alias_kind":"arxiv_version","alias_value":"2106.10922v1","created_at":"2026-07-05T03:22:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2106.10922","created_at":"2026-07-05T03:22:35Z"},{"alias_kind":"pith_short_12","alias_value":"CUEK7SH2NVTL","created_at":"2026-07-05T03:22:35Z"},{"alias_kind":"pith_short_16","alias_value":"CUEK7SH2NVTLF4J2","created_at":"2026-07-05T03:22:35Z"},{"alias_kind":"pith_short_8","alias_value":"CUEK7SH2","created_at":"2026-07-05T03:22:35Z"}],"graph_snapshots":[{"event_id":"sha256:05b668c2a981b931c3eea6a9dc9bc8fa5f1c6a919f19bfe6df2c6d0bfdb386f2","target":"graph","created_at":"2026-07-05T03:22:35Z","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/2106.10922/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Understanding lattice dynamics is crucial for effective thermal management in high-power electronic devices because phonons dominate thermal transport in most semiconductors. This study utilizes complementary inelastic X-ray and neutron scattering techniques and reports the temperature-dependent phonon dynamics of alpha-GaN, one of the most important third-generation power semiconductors. A prominent Matryoshka phonon dispersion is discovered with the scattering tools and confirmed by the first-principles calculations. Such Matryoshka twinning throughout the three-dimension reciprocal space is","authors_text":"Ayman H. Said, Bin Wei, Chen Li, Douglas L. Abernathy, Jiawang Hong, Qingan Cai, Qiyang Sun, Yaokun Su","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2021-06-21T08:39:47Z","title":"Matryoshka Phonon Twinning in alpha-GaN"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2106.10922","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:bf506c2c02b9c7a98623c72af8274ada65468f07796fe387e1a872aff1cf79ca","target":"record","created_at":"2026-07-05T03:22:35Z","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":"d2b5f24c63bdd54e13d4c92890e06ff4a2bc4542fc3846a833e7b9a54c9844f4","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2021-06-21T08:39:47Z","title_canon_sha256":"2eebb389a47e379c492f7dad0c5c62390a3d51f3c64fd54602ede1f1aead151a"},"schema_version":"1.0","source":{"id":"2106.10922","kind":"arxiv","version":1}},"canonical_sha256":"1508afc8fa6d66b2f13ab5a38838c5876b0d6b1941d95a479aec43f85eaf2625","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1508afc8fa6d66b2f13ab5a38838c5876b0d6b1941d95a479aec43f85eaf2625","first_computed_at":"2026-07-05T03:22:35.643118Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:22:35.643118Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"+jKj+1tlNc33toBF2lJ8QTvfDH7k0LfDHAXmU98bOadVqigq7KKHnVNzx8ROYX7dqSbiz2fM69sEZOO/Ep3+Cg==","signature_status":"signed_v1","signed_at":"2026-07-05T03:22:35.643894Z","signed_message":"canonical_sha256_bytes"},"source_id":"2106.10922","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:bf506c2c02b9c7a98623c72af8274ada65468f07796fe387e1a872aff1cf79ca","sha256:05b668c2a981b931c3eea6a9dc9bc8fa5f1c6a919f19bfe6df2c6d0bfdb386f2"],"state_sha256":"a5fb815de200fa5019ccd34057f13763d6bf400c20470854cdd877ddd50174de"}