{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:EXI6ZTWXCD7QI4N2CHU35PBCZO","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":"e8c09d36ab37a39a2b032ff9f5c4c996bb8ce6fa33cd69308e42141a3cb082e1","cross_cats_sorted":["physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2026-05-28T07:18:25Z","title_canon_sha256":"aaaa4fa19c8e180b6b0c52d6e4e2f198fbb8d5481f2fa7ec72f2f3a99bc7d8e9"},"schema_version":"1.0","source":{"id":"2605.29492","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.29492","created_at":"2026-05-29T01:05:42Z"},{"alias_kind":"arxiv_version","alias_value":"2605.29492v1","created_at":"2026-05-29T01:05:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.29492","created_at":"2026-05-29T01:05:42Z"},{"alias_kind":"pith_short_12","alias_value":"EXI6ZTWXCD7Q","created_at":"2026-05-29T01:05:42Z"},{"alias_kind":"pith_short_16","alias_value":"EXI6ZTWXCD7QI4N2","created_at":"2026-05-29T01:05:42Z"},{"alias_kind":"pith_short_8","alias_value":"EXI6ZTWX","created_at":"2026-05-29T01:05:42Z"}],"graph_snapshots":[{"event_id":"sha256:6c4398c1f1c7c5cd752e002a65f5d8b36d6dafbf8688637ce21d6f6068154d99","target":"graph","created_at":"2026-05-29T01:05:42Z","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/2605.29492/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Hydrogen-terminated diamond is known for its p-type surface conductivity, which arises from a near-surface hole accumulation layer induced by adsorbed acceptor species. Here, we demonstrate that these surface acceptors also form optically active donor-acceptor pairs (DAP) with substitutional nitrogen donors in diamond. The insertion of a nominally undoped CVD interlayer between a nitrogen-rich HPHT substrate and a hydrogen-terminated surface enables the precise tuning of the donor-acceptor separation with nanometer precision. Radiative DAP recombination appears as bright, spectrally narrow lin","authors_text":"A.A. Zhivopistsev, A. M. Romshin, A.P. Bolshakov, A. V. Gritsienko, I. I. Vlasov, O. S. Kudryavtsev, P. A. Pivovarov, V. G. Ralchenko","cross_cats":["physics.optics"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2026-05-28T07:18:25Z","title":"Near surface donor-acceptor pairs in hydrogenated homoepitaxial diamond nanolayers"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.29492","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:bc6438ae2faefdcea7d1bf1f0631bb781a6f3e2e28c1067acd7a620b8de08ef6","target":"record","created_at":"2026-05-29T01:05:42Z","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":"e8c09d36ab37a39a2b032ff9f5c4c996bb8ce6fa33cd69308e42141a3cb082e1","cross_cats_sorted":["physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2026-05-28T07:18:25Z","title_canon_sha256":"aaaa4fa19c8e180b6b0c52d6e4e2f198fbb8d5481f2fa7ec72f2f3a99bc7d8e9"},"schema_version":"1.0","source":{"id":"2605.29492","kind":"arxiv","version":1}},"canonical_sha256":"25d1ecced710ff0471ba11e9bebc22cbb5f53f841940be49e949b4e1893b0c59","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"25d1ecced710ff0471ba11e9bebc22cbb5f53f841940be49e949b4e1893b0c59","first_computed_at":"2026-05-29T01:05:42.635273Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-29T01:05:42.635273Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"H0+lzgdiEuY19yhuaT6/yAs88kjKuBmrncuLdZf+hhMKXrU4vgS8/NgNRUIbKv8FSqp1ELAHqHRnAtjyC+OVAA==","signature_status":"signed_v1","signed_at":"2026-05-29T01:05:42.636678Z","signed_message":"canonical_sha256_bytes"},"source_id":"2605.29492","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:bc6438ae2faefdcea7d1bf1f0631bb781a6f3e2e28c1067acd7a620b8de08ef6","sha256:6c4398c1f1c7c5cd752e002a65f5d8b36d6dafbf8688637ce21d6f6068154d99"],"state_sha256":"aa41a2554192f2f0754df0d01761fd35daf73733a378a181c37b1303895f3ae3"}