{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1996:ZJ3MJMZSCAVBGWGM2JCNNQOZWU","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":"0b7b7426e2dd7a4a98386c363ca71d61e8c299524280e82dd464bb73ec355b14","cross_cats_sorted":[],"license":"","primary_cat":"cond-mat.mtrl-sci","submitted_at":"1996-10-07T11:28:19Z","title_canon_sha256":"7b677675aec5565f667c234f18d35294ddc3b5ae4c013cddd6293c83d9bdcbdf"},"schema_version":"1.0","source":{"id":"cond-mat/9610044","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/9610044","created_at":"2026-05-18T01:07:09Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/9610044v1","created_at":"2026-05-18T01:07:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/9610044","created_at":"2026-05-18T01:07:09Z"},{"alias_kind":"pith_short_12","alias_value":"ZJ3MJMZSCAVB","created_at":"2026-05-18T12:25:48Z"},{"alias_kind":"pith_short_16","alias_value":"ZJ3MJMZSCAVBGWGM","created_at":"2026-05-18T12:25:48Z"},{"alias_kind":"pith_short_8","alias_value":"ZJ3MJMZS","created_at":"2026-05-18T12:25:48Z"}],"graph_snapshots":[{"event_id":"sha256:9df88fd527c2e4ec93f9ee124915f7c7db50ee52254a0b5412c19247f90a1ad6","target":"graph","created_at":"2026-05-18T01:07:09Z","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"},"paper":{"abstract_excerpt":"Zn in GaN forms an efficient radiative center and acts as a deep acceptor which can make the crystal insulating. Four different Zn-related centers have been by now identified, leading to light emission in the range between 1.8 eV and 2.9 eV. We present a first-principles investigation total energy and electronic structure calculations for Ga-substitutional and hetero-antisite N-substitutional Zn in wurtzite GaN, using ultrasoft pseudopotentials and a conjugate-gradient total energy minimization method. Our results permit the identification of the blue-light emission center as the substitutiona","authors_text":"Fabio Bernardini, R. M. Nieminen, Vincenzo Fiorentini","cross_cats":[],"headline":"","license":"","primary_cat":"cond-mat.mtrl-sci","submitted_at":"1996-10-07T11:28:19Z","title":"Zn-related deep centers in wurtzite GaN"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/9610044","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":"sha256:1422cc0617df33ab24af060b46b911a609a0b3d474d00929daf8688d374a4a3c","target":"record","created_at":"2026-05-18T01:07:09Z","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":"0b7b7426e2dd7a4a98386c363ca71d61e8c299524280e82dd464bb73ec355b14","cross_cats_sorted":[],"license":"","primary_cat":"cond-mat.mtrl-sci","submitted_at":"1996-10-07T11:28:19Z","title_canon_sha256":"7b677675aec5565f667c234f18d35294ddc3b5ae4c013cddd6293c83d9bdcbdf"},"schema_version":"1.0","source":{"id":"cond-mat/9610044","kind":"arxiv","version":1}},"canonical_sha256":"ca76c4b332102a1358ccd244d6c1d9b50e4b7fa174da7756284c3f34242ce1d6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ca76c4b332102a1358ccd244d6c1d9b50e4b7fa174da7756284c3f34242ce1d6","first_computed_at":"2026-05-18T01:07:09.263067Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:07:09.263067Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"w1nr2kLWxwlrUw45NucrYTvOIXIp/iFPn4KoN0WyXYJI5eb6ildzBCE1BRNzjoITMlwBrYnPVUpy4AIeU25sCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:07:09.263440Z","signed_message":"canonical_sha256_bytes"},"source_id":"cond-mat/9610044","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1422cc0617df33ab24af060b46b911a609a0b3d474d00929daf8688d374a4a3c","sha256:9df88fd527c2e4ec93f9ee124915f7c7db50ee52254a0b5412c19247f90a1ad6"],"state_sha256":"cf796ca32b769c6f278675746998d8b049b80d26bb945a277d6321ab2db5fd97"}