{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:UIRPIK7X3AESB5IMWLSO6EUQ7I","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":"f345218f5e4bdbf9094bd2965fa7940c2c1328bba954c3f29929afeb1e633cf7","cross_cats_sorted":["quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2010-09-21T22:04:49Z","title_canon_sha256":"2f2a9be977dc52b9597ec3fbe0bc290f50231de6c2367a95e7db6357ad241197"},"schema_version":"1.0","source":{"id":"1009.4224","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1009.4224","created_at":"2026-05-18T02:05:18Z"},{"alias_kind":"arxiv_version","alias_value":"1009.4224v1","created_at":"2026-05-18T02:05:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1009.4224","created_at":"2026-05-18T02:05:18Z"},{"alias_kind":"pith_short_12","alias_value":"UIRPIK7X3AES","created_at":"2026-05-18T12:26:15Z"},{"alias_kind":"pith_short_16","alias_value":"UIRPIK7X3AESB5IM","created_at":"2026-05-18T12:26:15Z"},{"alias_kind":"pith_short_8","alias_value":"UIRPIK7X","created_at":"2026-05-18T12:26:15Z"}],"graph_snapshots":[{"event_id":"sha256:16a997851bfb4f80bd99f4b6037785f13c8d21023981547c98a88ce1c4d686b3","target":"graph","created_at":"2026-05-18T02:05:18Z","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":"The development of materials processing techniques for optical diamond nanostructures containing a single color center is an important problem in quantum science and technology. In this work, we present the combination of ion implantation and top-down diamond nanofabrication in two scenarios: diamond nanopillars and diamond nanowires. The first device consists of a 'shallow' implant (~20nm) to generate Nitrogen-vacancy (NV) color centers near the top surface of the diamond crystal. Individual NV centers are then isolated mechanically by dry etching a regular array of nanopillars in the diamond","authors_text":"A. Yacoby, Birgit J. M. Hausmann, Irfan Bulu, Jennifer T. Choy, Jonathan S. Hodges, Marko Lon\\v{c}ar, M. D. Lukin, Sungkun Hong, Thomas M. Babinec","cross_cats":["quant-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2010-09-21T22:04:49Z","title":"Single Color Centers Implanted in Diamond Nanostructures"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1009.4224","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":"sha256:9770943095259fb017402900b6e7c644614f3090fd1170ea79b2169e635bcbf2","target":"record","created_at":"2026-05-18T02:05:18Z","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":"f345218f5e4bdbf9094bd2965fa7940c2c1328bba954c3f29929afeb1e633cf7","cross_cats_sorted":["quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2010-09-21T22:04:49Z","title_canon_sha256":"2f2a9be977dc52b9597ec3fbe0bc290f50231de6c2367a95e7db6357ad241197"},"schema_version":"1.0","source":{"id":"1009.4224","kind":"arxiv","version":1}},"canonical_sha256":"a222f42bf7d80920f50cb2e4ef1290fa224cbf356f3f0415de79cf4c08008e51","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a222f42bf7d80920f50cb2e4ef1290fa224cbf356f3f0415de79cf4c08008e51","first_computed_at":"2026-05-18T02:05:18.947840Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:05:18.947840Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"QO63NqMnmNefLyEv8MLEwbAuOtrnOvh+b8Rb8UzLCX8eiOeGWaxGhYtbkqkzP05wrHU+yEsC9iDvM0VzRE4gDw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:05:18.948599Z","signed_message":"canonical_sha256_bytes"},"source_id":"1009.4224","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9770943095259fb017402900b6e7c644614f3090fd1170ea79b2169e635bcbf2","sha256:16a997851bfb4f80bd99f4b6037785f13c8d21023981547c98a88ce1c4d686b3"],"state_sha256":"30a67b736ec489321be2ef578bcc46e8d4c9850ef55aa1a2dd5465ea9000503c"}