{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:OTZPZXS57PYETCDWR32ZXADOVY","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":"23f57693f861c9b90c8d4c1d862120ceacec7cde86e33d0012554bedac10a322","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2026-05-27T14:53:52Z","title_canon_sha256":"3dea5b7043bbfb63018a584c85f479cd4293096d77a42020c470709d982fe5db"},"schema_version":"1.0","source":{"id":"2605.28564","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.28564","created_at":"2026-05-28T02:04:56Z"},{"alias_kind":"arxiv_version","alias_value":"2605.28564v1","created_at":"2026-05-28T02:04:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.28564","created_at":"2026-05-28T02:04:56Z"},{"alias_kind":"pith_short_12","alias_value":"OTZPZXS57PYE","created_at":"2026-05-28T02:04:56Z"},{"alias_kind":"pith_short_16","alias_value":"OTZPZXS57PYETCDW","created_at":"2026-05-28T02:04:56Z"},{"alias_kind":"pith_short_8","alias_value":"OTZPZXS5","created_at":"2026-05-28T02:04:56Z"}],"graph_snapshots":[{"event_id":"sha256:d145afc6a9282f24d7b5cce39d7a8ce3ca17823fc84b2ecbb5556868ea34d5b0","target":"graph","created_at":"2026-05-28T02:04:56Z","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/2605.28564/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Controlling the spatial incorporation of carbon into hexagonal boron nitride (hBN) is essential for engineering optically active defects, yet existing approaches lack nanoscale precision and control over the carbon supply. Here, we demonstrate a method for carbon doping of hBN using electron-beam irradiation in a low-pressure methane atmosphere, where the beam simultaneously generates vacancies and decomposes methane into individual carbon and hydrogen atoms. Using annular dark-field scanning transmission electron microscopy, we show that increasing the methane partial pressure suppresses pore","authors_text":"Barbara Maria Mayer, E. Harriet {\\AA}hlgren, Jani Kotakoski, Manuel L\\\"angle, Toma Susi, Umair Javed","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2026-05-27T14:53:52Z","title":"Electron-beam induced methane decomposition for in-situ carbon doping of hexagonal boron nitride"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.28564","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:a83d4129b77a0b1e0dc4211c55a82b8e508dd48219eb7c48db55a8d53945f9bf","target":"record","created_at":"2026-05-28T02:04:56Z","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":"23f57693f861c9b90c8d4c1d862120ceacec7cde86e33d0012554bedac10a322","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2026-05-27T14:53:52Z","title_canon_sha256":"3dea5b7043bbfb63018a584c85f479cd4293096d77a42020c470709d982fe5db"},"schema_version":"1.0","source":{"id":"2605.28564","kind":"arxiv","version":1}},"canonical_sha256":"74f2fcde5dfbf04988768ef59b806eae0c84a114a208546cbad6a7c1b3827922","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"74f2fcde5dfbf04988768ef59b806eae0c84a114a208546cbad6a7c1b3827922","first_computed_at":"2026-05-28T02:04:56.518679Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-28T02:04:56.518679Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Fg4fe+KZSO6hjIO+9rPggwuOSB0+zK6jEa0hLiqf1JjwOmzFvHs9NG8jynwsqxk4MK8TdCgEEgegoLxRL9DRDg==","signature_status":"signed_v1","signed_at":"2026-05-28T02:04:56.519089Z","signed_message":"canonical_sha256_bytes"},"source_id":"2605.28564","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a83d4129b77a0b1e0dc4211c55a82b8e508dd48219eb7c48db55a8d53945f9bf","sha256:d145afc6a9282f24d7b5cce39d7a8ce3ca17823fc84b2ecbb5556868ea34d5b0"],"state_sha256":"f518845ed093b4120c95b99b44e459ba77170743d0d9c2ff8261e639773a8405"}