{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:D2WMJ5C7K2IEPFXDGDR362XTWT","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":"2af1918637171e12b0fafed74c19b7806217aea61f533b406239af18ab24208f","cross_cats_sorted":["physics.app-ph"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2026-07-17T08:35:57Z","title_canon_sha256":"467743e96774ce119270eacbfb928d53879d281286a68e7b69c66805f9c43d79"},"schema_version":"1.0","source":{"id":"2607.15748","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.15748","created_at":"2026-07-20T01:19:07Z"},{"alias_kind":"arxiv_version","alias_value":"2607.15748v1","created_at":"2026-07-20T01:19:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.15748","created_at":"2026-07-20T01:19:07Z"},{"alias_kind":"pith_short_12","alias_value":"D2WMJ5C7K2IE","created_at":"2026-07-20T01:19:07Z"},{"alias_kind":"pith_short_16","alias_value":"D2WMJ5C7K2IEPFXD","created_at":"2026-07-20T01:19:07Z"},{"alias_kind":"pith_short_8","alias_value":"D2WMJ5C7","created_at":"2026-07-20T01:19:07Z"}],"graph_snapshots":[{"event_id":"sha256:9fe0a1dc43dac4080a9fa20596bf155bfd447938c9ca83eb6a1b279346e994bb","target":"graph","created_at":"2026-07-20T01:19:07Z","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/2607.15748/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"(In,Ga)N layers are grown by plasma-assisted molecular beam epitaxy on GaN templates. We introduce a two-step protocol that involves switching the growth conditions from initially N-stable to metal-stable. Reflection high-energy electron diffraction as well as scanning electron and atomic force microscopy reveal that the first step results in a rough intermediate surface with open pits, whereas the final surface is smooth. The narrow linewidth of the photoluminescence band indicates an excellent compositional homogeneity of the upper layer. Its in-plane lattice constant is determined to be $\\a","authors_text":"Aidan F. Campbell, Huaide Zhang, Jingxuan Kang, Jonas L\\\"ahnemann, Lutz Geelhaar, Oliver Brandt","cross_cats":["physics.app-ph"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2026-07-17T08:35:57Z","title":"Two-step growth of (In,Ga)N pseudo-substrates on GaN templates by plasma-assisted molecular beam epitaxy"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.15748","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":"sha256:25694bed329bbb5e523dd8bd394f1facd995b257caf711b32a225b242c76c234","target":"record","created_at":"2026-07-20T01:19:07Z","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":"2af1918637171e12b0fafed74c19b7806217aea61f533b406239af18ab24208f","cross_cats_sorted":["physics.app-ph"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2026-07-17T08:35:57Z","title_canon_sha256":"467743e96774ce119270eacbfb928d53879d281286a68e7b69c66805f9c43d79"},"schema_version":"1.0","source":{"id":"2607.15748","kind":"arxiv","version":1}},"canonical_sha256":"1eacc4f45f56904796e330e3bf6af3b4eee9052ee82d779b5737e29ec366fce6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1eacc4f45f56904796e330e3bf6af3b4eee9052ee82d779b5737e29ec366fce6","first_computed_at":"2026-07-20T01:19:07.559915Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-20T01:19:07.559915Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"wWO2qqkCHfcuszqAPfmQR5N+gj7kjMjN3ryl7wymoXnNF9AKtLdYFTPZORXOSAXG4k8A/JSI8YjrQTjd2lFNCg==","signature_status":"signed_v1","signed_at":"2026-07-20T01:19:07.560771Z","signed_message":"canonical_sha256_bytes"},"source_id":"2607.15748","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:25694bed329bbb5e523dd8bd394f1facd995b257caf711b32a225b242c76c234","sha256:9fe0a1dc43dac4080a9fa20596bf155bfd447938c9ca83eb6a1b279346e994bb"],"state_sha256":"98d916081016c11f7043ef9f1292aa40d54ae73713e5e38933cb346111171547"}