{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:JA2Z26W7CKLREXW234MFKVPPEF","short_pith_number":"pith:JA2Z26W7","canonical_record":{"source":{"id":"2307.04003","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"physics.app-ph","submitted_at":"2023-07-08T16:09:59Z","cross_cats_sorted":["cond-mat.mtrl-sci","quant-ph"],"title_canon_sha256":"d88ddef8979144042b733952dd7bc0f2412c38107292fbbdfefb75325c73198a","abstract_canon_sha256":"c8b41cb386cfabc0d936abc27ab940b9595b60f19a89632a357a5451a3e0265f"},"schema_version":"1.0"},"canonical_sha256":"48359d7adf1297125edadf185555ef214429980c94dc71ad1468a23638e49bfe","source":{"kind":"arxiv","id":"2307.04003","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2307.04003","created_at":"2026-07-05T06:29:06Z"},{"alias_kind":"arxiv_version","alias_value":"2307.04003v1","created_at":"2026-07-05T06:29:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2307.04003","created_at":"2026-07-05T06:29:06Z"},{"alias_kind":"pith_short_12","alias_value":"JA2Z26W7CKLR","created_at":"2026-07-05T06:29:06Z"},{"alias_kind":"pith_short_16","alias_value":"JA2Z26W7CKLREXW2","created_at":"2026-07-05T06:29:06Z"},{"alias_kind":"pith_short_8","alias_value":"JA2Z26W7","created_at":"2026-07-05T06:29:06Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:JA2Z26W7CKLREXW234MFKVPPEF","target":"record","payload":{"canonical_record":{"source":{"id":"2307.04003","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"physics.app-ph","submitted_at":"2023-07-08T16:09:59Z","cross_cats_sorted":["cond-mat.mtrl-sci","quant-ph"],"title_canon_sha256":"d88ddef8979144042b733952dd7bc0f2412c38107292fbbdfefb75325c73198a","abstract_canon_sha256":"c8b41cb386cfabc0d936abc27ab940b9595b60f19a89632a357a5451a3e0265f"},"schema_version":"1.0"},"canonical_sha256":"48359d7adf1297125edadf185555ef214429980c94dc71ad1468a23638e49bfe","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T06:29:06.778178Z","signature_b64":"DdgPUW+SI+ulU/TEqturMh+LLsX1dFIa4pHedFS5QoBtdVe+aYee7w32r1oluMbJIrPLXO8B5gndSklAGrHyBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"48359d7adf1297125edadf185555ef214429980c94dc71ad1468a23638e49bfe","last_reissued_at":"2026-07-05T06:29:06.777758Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T06:29:06.777758Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2307.04003","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":"2026-07-05T06:29:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OvPXWJmVClkbH+KayftI/rAnwADobWSTGc8K6fiSJ7xw11X7GIqLAb9xVb3uf5mTx/cIln8ooaQ0MiX2j3akAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T18:57:56.342351Z"},"content_sha256":"693b3e197cbe36d6f95dc1670c9ff4ddf4022a616e7c7a6ce6705a656961657a","schema_version":"1.0","event_id":"sha256:693b3e197cbe36d6f95dc1670c9ff4ddf4022a616e7c7a6ce6705a656961657a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:JA2Z26W7CKLREXW234MFKVPPEF","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Extending spin dephasing time of perfectly aligned Nitrogen-Vacancy centers by mitigating stress distribution on highly misoriented chemical-vapor-deposition diamond","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","headline":"","cross_cats":["cond-mat.mtrl-sci","quant-ph"],"primary_cat":"physics.app-ph","authors_text":"M.Hatano, T.Iwasaki, T. Sekiguchi, T. Tsuji","submitted_at":"2023-07-08T16:09:59Z","abstract_excerpt":"Extending the spin-dephasing time (T2*) of perfectly aligned nitrogen-vacancy (NV) centers in large-volume chemical vapor deposition (CVD) diamonds leads to enhanced DC magnetic sensitivity. However, T2* of the NV centers is significantly reduced by the stress distribution in the diamond film as its thickness increases. To overcome this issue, we developed a method to mitigate the stress distribution in the CVD diamond films, leading to a T2* extension of the ensemble NV centers. CVD diamond films of approximately 50 \\mu m thickness with perfectly aligned NV centers were formed on (111) diamon"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2307.04003","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/2307.04003/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":"2026-07-05T06:29:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"IwJ5xUwZh6aYMwMPhuGeqEIrNxKiG3EI7fNPJAV3Lp3yE/TbcK2iC6uP0PfBVAQ6Ctgd0xHt4KKSDDdr2LPnCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T18:57:56.342727Z"},"content_sha256":"9d4fb55309bbc6b2d65ccb63025e02d766a1414bcbb9c5c8a29f7df1380edd6d","schema_version":"1.0","event_id":"sha256:9d4fb55309bbc6b2d65ccb63025e02d766a1414bcbb9c5c8a29f7df1380edd6d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JA2Z26W7CKLREXW234MFKVPPEF/bundle.json","state_url":"https://pith.science/pith/JA2Z26W7CKLREXW234MFKVPPEF/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JA2Z26W7CKLREXW234MFKVPPEF/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":"2026-08-06T18:57:56Z","links":{"resolver":"https://pith.science/pith/JA2Z26W7CKLREXW234MFKVPPEF","bundle":"https://pith.science/pith/JA2Z26W7CKLREXW234MFKVPPEF/bundle.json","state":"https://pith.science/pith/JA2Z26W7CKLREXW234MFKVPPEF/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JA2Z26W7CKLREXW234MFKVPPEF/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:JA2Z26W7CKLREXW234MFKVPPEF","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":"c8b41cb386cfabc0d936abc27ab940b9595b60f19a89632a357a5451a3e0265f","cross_cats_sorted":["cond-mat.mtrl-sci","quant-ph"],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"physics.app-ph","submitted_at":"2023-07-08T16:09:59Z","title_canon_sha256":"d88ddef8979144042b733952dd7bc0f2412c38107292fbbdfefb75325c73198a"},"schema_version":"1.0","source":{"id":"2307.04003","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2307.04003","created_at":"2026-07-05T06:29:06Z"},{"alias_kind":"arxiv_version","alias_value":"2307.04003v1","created_at":"2026-07-05T06:29:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2307.04003","created_at":"2026-07-05T06:29:06Z"},{"alias_kind":"pith_short_12","alias_value":"JA2Z26W7CKLR","created_at":"2026-07-05T06:29:06Z"},{"alias_kind":"pith_short_16","alias_value":"JA2Z26W7CKLREXW2","created_at":"2026-07-05T06:29:06Z"},{"alias_kind":"pith_short_8","alias_value":"JA2Z26W7","created_at":"2026-07-05T06:29:06Z"}],"graph_snapshots":[{"event_id":"sha256:9d4fb55309bbc6b2d65ccb63025e02d766a1414bcbb9c5c8a29f7df1380edd6d","target":"graph","created_at":"2026-07-05T06:29:06Z","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/2307.04003/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Extending the spin-dephasing time (T2*) of perfectly aligned nitrogen-vacancy (NV) centers in large-volume chemical vapor deposition (CVD) diamonds leads to enhanced DC magnetic sensitivity. However, T2* of the NV centers is significantly reduced by the stress distribution in the diamond film as its thickness increases. To overcome this issue, we developed a method to mitigate the stress distribution in the CVD diamond films, leading to a T2* extension of the ensemble NV centers. CVD diamond films of approximately 50 \\mu m thickness with perfectly aligned NV centers were formed on (111) diamon","authors_text":"M.Hatano, T.Iwasaki, T. Sekiguchi, T. Tsuji","cross_cats":["cond-mat.mtrl-sci","quant-ph"],"headline":"","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"physics.app-ph","submitted_at":"2023-07-08T16:09:59Z","title":"Extending spin dephasing time of perfectly aligned Nitrogen-Vacancy centers by mitigating stress distribution on highly misoriented chemical-vapor-deposition diamond"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2307.04003","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":"sha256:693b3e197cbe36d6f95dc1670c9ff4ddf4022a616e7c7a6ce6705a656961657a","target":"record","created_at":"2026-07-05T06:29:06Z","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":"c8b41cb386cfabc0d936abc27ab940b9595b60f19a89632a357a5451a3e0265f","cross_cats_sorted":["cond-mat.mtrl-sci","quant-ph"],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"physics.app-ph","submitted_at":"2023-07-08T16:09:59Z","title_canon_sha256":"d88ddef8979144042b733952dd7bc0f2412c38107292fbbdfefb75325c73198a"},"schema_version":"1.0","source":{"id":"2307.04003","kind":"arxiv","version":1}},"canonical_sha256":"48359d7adf1297125edadf185555ef214429980c94dc71ad1468a23638e49bfe","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"48359d7adf1297125edadf185555ef214429980c94dc71ad1468a23638e49bfe","first_computed_at":"2026-07-05T06:29:06.777758Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T06:29:06.777758Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"DdgPUW+SI+ulU/TEqturMh+LLsX1dFIa4pHedFS5QoBtdVe+aYee7w32r1oluMbJIrPLXO8B5gndSklAGrHyBA==","signature_status":"signed_v1","signed_at":"2026-07-05T06:29:06.778178Z","signed_message":"canonical_sha256_bytes"},"source_id":"2307.04003","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:693b3e197cbe36d6f95dc1670c9ff4ddf4022a616e7c7a6ce6705a656961657a","sha256:9d4fb55309bbc6b2d65ccb63025e02d766a1414bcbb9c5c8a29f7df1380edd6d"],"state_sha256":"99738848d731ae3e00121ac0dfe554f644ddd4061e37b672538521d9d203d6cd"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"A/OTO1+6WJwmiUeOfeL9CecT/byPr9Wnp6IThtlsxEkSrwsQCpOB19bSsXGRDgth542z4Jr4C/7qv4NGI4r6AA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-06T18:57:56.345516Z","bundle_sha256":"f782086abde551b4768ff448595801e2bc4c31aaa364dd2092c4593365926d95"}}