{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2006:LFYZ2NVUKOSR3VFH2WTZ6XEQA5","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":"3d5a30299776c10687afada8991b51ee5d7dc3af7045cf73c54966499cce6898","cross_cats_sorted":[],"license":"","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2006-03-31T19:26:38Z","title_canon_sha256":"50460d4c12019fae1f7415eb92781122493264b5917ee1f6a67f113e72e199d4"},"schema_version":"1.0","source":{"id":"cond-mat/0603849","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/0603849","created_at":"2026-05-18T01:39:48Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0603849v3","created_at":"2026-05-18T01:39:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0603849","created_at":"2026-05-18T01:39:48Z"},{"alias_kind":"pith_short_12","alias_value":"LFYZ2NVUKOSR","created_at":"2026-05-18T12:25:54Z"},{"alias_kind":"pith_short_16","alias_value":"LFYZ2NVUKOSR3VFH","created_at":"2026-05-18T12:25:54Z"},{"alias_kind":"pith_short_8","alias_value":"LFYZ2NVU","created_at":"2026-05-18T12:25:54Z"}],"graph_snapshots":[{"event_id":"sha256:eeb2a87c37393d27576656eb1f9d22ffdc2d07be737fa21ac1d4f99dd588b64b","target":"graph","created_at":"2026-05-18T01:39:48Z","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":"Positron lifetime spectroscopy was used to study native vacancy defects in semi-insulating silicon carbide. The material is shown to contain (i) vacancy clusters consisting of 4--5 missing atoms and (ii) Si vacancy related negatively charged defects. The total open volume bound to the clusters anticorrelates with the electrical resistivity both in as-grown and annealed material. Our results suggest that Si vacancy related complexes compensate electrically the as-grown material, but migrate to increase the size of the clusters during annealing, leading to loss of resistivity.","authors_text":"B. Magnusson, E. Janzen, F. Tuomisto, K. Saarinen, N.T. Son, R. Aavikko","cross_cats":[],"headline":"","license":"","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2006-03-31T19:26:38Z","title":"Clustering of vacancy defects in high-purity semi-insulating SiC"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0603849","kind":"arxiv","version":3},"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":"sha256:7b97ca0fda4b6e2cc871066bf5ebb345f7279832938c4a87ba63a53dc2129406","target":"record","created_at":"2026-05-18T01:39:48Z","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":"3d5a30299776c10687afada8991b51ee5d7dc3af7045cf73c54966499cce6898","cross_cats_sorted":[],"license":"","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2006-03-31T19:26:38Z","title_canon_sha256":"50460d4c12019fae1f7415eb92781122493264b5917ee1f6a67f113e72e199d4"},"schema_version":"1.0","source":{"id":"cond-mat/0603849","kind":"arxiv","version":3}},"canonical_sha256":"59719d36b453a51dd4a7d5a79f5c90075d3f9e6bf11fd21d5bbfc3ba6d17b830","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"59719d36b453a51dd4a7d5a79f5c90075d3f9e6bf11fd21d5bbfc3ba6d17b830","first_computed_at":"2026-05-18T01:39:48.200059Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:39:48.200059Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"USveiBADDPX+VviXTYTs4ImYVC95/wwTaZyaD6tAUhYOjCQVvcytiWGAdBTljiu7fh61lGadjYCVrKiFR/DXDw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:39:48.200756Z","signed_message":"canonical_sha256_bytes"},"source_id":"cond-mat/0603849","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7b97ca0fda4b6e2cc871066bf5ebb345f7279832938c4a87ba63a53dc2129406","sha256:eeb2a87c37393d27576656eb1f9d22ffdc2d07be737fa21ac1d4f99dd588b64b"],"state_sha256":"9718031bb2b8b777e9fe905fe78daf536fce722aa051b043d68ee997750a4287"}