{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:CCGMR23NXR7AQSUYGF4G4JVPZQ","short_pith_number":"pith:CCGMR23N","canonical_record":{"source":{"id":"2505.10866","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2025-05-16T05:09:56Z","cross_cats_sorted":[],"title_canon_sha256":"56a0dbdca17274078243c7fa93d5f7c9a182c5384900e2af19293974f946203d","abstract_canon_sha256":"5df1f399e0d5e0f74d5fb5f5e583dc6f393343fcb883bff44fdd4a8efc33ef62"},"schema_version":"1.0"},"canonical_sha256":"108cc8eb6dbc7e084a9831786e26afcc043b60a0dd98fe76f352dd81aca83891","source":{"kind":"arxiv","id":"2505.10866","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2505.10866","created_at":"2026-07-05T11:04:07Z"},{"alias_kind":"arxiv_version","alias_value":"2505.10866v1","created_at":"2026-07-05T11:04:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2505.10866","created_at":"2026-07-05T11:04:07Z"},{"alias_kind":"pith_short_12","alias_value":"CCGMR23NXR7A","created_at":"2026-07-05T11:04:07Z"},{"alias_kind":"pith_short_16","alias_value":"CCGMR23NXR7AQSUY","created_at":"2026-07-05T11:04:07Z"},{"alias_kind":"pith_short_8","alias_value":"CCGMR23N","created_at":"2026-07-05T11:04:07Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:CCGMR23NXR7AQSUYGF4G4JVPZQ","target":"record","payload":{"canonical_record":{"source":{"id":"2505.10866","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2025-05-16T05:09:56Z","cross_cats_sorted":[],"title_canon_sha256":"56a0dbdca17274078243c7fa93d5f7c9a182c5384900e2af19293974f946203d","abstract_canon_sha256":"5df1f399e0d5e0f74d5fb5f5e583dc6f393343fcb883bff44fdd4a8efc33ef62"},"schema_version":"1.0"},"canonical_sha256":"108cc8eb6dbc7e084a9831786e26afcc043b60a0dd98fe76f352dd81aca83891","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:04:07.375881Z","signature_b64":"GBEPmU2ljQ9GjbLGyR5pZadXmYyFU11eeQtEHpbeye4bPmwXZvtymaidIX7V4JgHG4Wqp5IALKPn79UAEJiUCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"108cc8eb6dbc7e084a9831786e26afcc043b60a0dd98fe76f352dd81aca83891","last_reissued_at":"2026-07-05T11:04:07.375447Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:04:07.375447Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2505.10866","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T11:04:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5JtQRh18kMDKJzwMrBlzyjxgg+4N/32JenmsSgbmFV3L7H+8txwKmNCxhXMXtkLccr5bkFYqGlOyw8+5voT4Cg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-18T15:53:43.249981Z"},"content_sha256":"a06aac9234e22dd00b3ad213f8bf1cd925074804750bc6a1103e80c9e187c3e4","schema_version":"1.0","event_id":"sha256:a06aac9234e22dd00b3ad213f8bf1cd925074804750bc6a1103e80c9e187c3e4"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:CCGMR23NXR7AQSUYGF4G4JVPZQ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Surface coupling of NV centers over nanoscale lengths","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Arsineh Apelian, Mariya Romanova, Vojtech Vlcek","submitted_at":"2025-05-16T05:09:56Z","abstract_excerpt":"Shallow nitrogen-vacancy (NV-) centers in diamond are among the most promising quantum sensors, offering high sensitivity and nanoscale spatial resolution. These systems are, however, prone to decoherence due to coupling with surface states. Here, we study sub-surface NV- centers embedded into large diamond slabs (8 nm) using various surface orientations (100 and 111) and terminations (hydrogen and nitrogen terminators) and compute the quasiparticle states of the defect. Our results show how dynamical charge fluctuations near the surface influence defect stability. We find that the (100) N-ter"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2505.10866","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2505.10866/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T11:04:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"v4nGN99Daim1P19E+fN0SeRHXabY12cqPqB/UyYMpkQ+2GEHcV8cIUisBSjMe7IPD9KxExY9OU6g1WDv0zzmAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-18T15:53:43.250498Z"},"content_sha256":"797b979119c7a8d291d5a535cd4f2a6174db3e9df35de8dc67a175baf90103de","schema_version":"1.0","event_id":"sha256:797b979119c7a8d291d5a535cd4f2a6174db3e9df35de8dc67a175baf90103de"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/CCGMR23NXR7AQSUYGF4G4JVPZQ/bundle.json","state_url":"https://pith.science/pith/CCGMR23NXR7AQSUYGF4G4JVPZQ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/CCGMR23NXR7AQSUYGF4G4JVPZQ/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-08-18T15:53:43Z","links":{"resolver":"https://pith.science/pith/CCGMR23NXR7AQSUYGF4G4JVPZQ","bundle":"https://pith.science/pith/CCGMR23NXR7AQSUYGF4G4JVPZQ/bundle.json","state":"https://pith.science/pith/CCGMR23NXR7AQSUYGF4G4JVPZQ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/CCGMR23NXR7AQSUYGF4G4JVPZQ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:CCGMR23NXR7AQSUYGF4G4JVPZQ","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":"5df1f399e0d5e0f74d5fb5f5e583dc6f393343fcb883bff44fdd4a8efc33ef62","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2025-05-16T05:09:56Z","title_canon_sha256":"56a0dbdca17274078243c7fa93d5f7c9a182c5384900e2af19293974f946203d"},"schema_version":"1.0","source":{"id":"2505.10866","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2505.10866","created_at":"2026-07-05T11:04:07Z"},{"alias_kind":"arxiv_version","alias_value":"2505.10866v1","created_at":"2026-07-05T11:04:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2505.10866","created_at":"2026-07-05T11:04:07Z"},{"alias_kind":"pith_short_12","alias_value":"CCGMR23NXR7A","created_at":"2026-07-05T11:04:07Z"},{"alias_kind":"pith_short_16","alias_value":"CCGMR23NXR7AQSUY","created_at":"2026-07-05T11:04:07Z"},{"alias_kind":"pith_short_8","alias_value":"CCGMR23N","created_at":"2026-07-05T11:04:07Z"}],"graph_snapshots":[{"event_id":"sha256:797b979119c7a8d291d5a535cd4f2a6174db3e9df35de8dc67a175baf90103de","target":"graph","created_at":"2026-07-05T11:04:07Z","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/2505.10866/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Shallow nitrogen-vacancy (NV-) centers in diamond are among the most promising quantum sensors, offering high sensitivity and nanoscale spatial resolution. These systems are, however, prone to decoherence due to coupling with surface states. Here, we study sub-surface NV- centers embedded into large diamond slabs (8 nm) using various surface orientations (100 and 111) and terminations (hydrogen and nitrogen terminators) and compute the quasiparticle states of the defect. Our results show how dynamical charge fluctuations near the surface influence defect stability. We find that the (100) N-ter","authors_text":"Arsineh Apelian, Mariya Romanova, Vojtech Vlcek","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2025-05-16T05:09:56Z","title":"Surface coupling of NV centers over nanoscale lengths"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2505.10866","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:a06aac9234e22dd00b3ad213f8bf1cd925074804750bc6a1103e80c9e187c3e4","target":"record","created_at":"2026-07-05T11:04:07Z","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":"5df1f399e0d5e0f74d5fb5f5e583dc6f393343fcb883bff44fdd4a8efc33ef62","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2025-05-16T05:09:56Z","title_canon_sha256":"56a0dbdca17274078243c7fa93d5f7c9a182c5384900e2af19293974f946203d"},"schema_version":"1.0","source":{"id":"2505.10866","kind":"arxiv","version":1}},"canonical_sha256":"108cc8eb6dbc7e084a9831786e26afcc043b60a0dd98fe76f352dd81aca83891","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"108cc8eb6dbc7e084a9831786e26afcc043b60a0dd98fe76f352dd81aca83891","first_computed_at":"2026-07-05T11:04:07.375447Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:04:07.375447Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"GBEPmU2ljQ9GjbLGyR5pZadXmYyFU11eeQtEHpbeye4bPmwXZvtymaidIX7V4JgHG4Wqp5IALKPn79UAEJiUCA==","signature_status":"signed_v1","signed_at":"2026-07-05T11:04:07.375881Z","signed_message":"canonical_sha256_bytes"},"source_id":"2505.10866","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a06aac9234e22dd00b3ad213f8bf1cd925074804750bc6a1103e80c9e187c3e4","sha256:797b979119c7a8d291d5a535cd4f2a6174db3e9df35de8dc67a175baf90103de"],"state_sha256":"e4263af7c6bae5d27bd805299ed324057c7546b430053534d652714b1086080a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"T9nbd/gPiNa75kqzzYg/780+2H71yp7/sxPToNyAaHikw0QptI/bukkTmOa6l6KKjfS+1q/iwktDHlBntfpRDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-18T15:53:43.266243Z","bundle_sha256":"a0dabdfb4677ee74f426ac06a8bc0744d17f3107192a47da386d5e22811bb8c5"}}