{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:XX6WL2WSLG3Y5NMDSLHMQDBWCK","short_pith_number":"pith:XX6WL2WS","canonical_record":{"source":{"id":"1003.3699","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2010-03-19T01:38:06Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"51edf71fefb2228a1c0c00f2177d770884d63bec7158c0f7d00a1e9aede3a09e","abstract_canon_sha256":"770e4b21b35cb87a21dacd7d27f706f22b8b8e5cb1a037e050c25fda6f4dcff7"},"schema_version":"1.0"},"canonical_sha256":"bdfd65ead259b78eb58392cec80c3612a31761676864405dcba9fea614a04abe","source":{"kind":"arxiv","id":"1003.3699","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1003.3699","created_at":"2026-05-18T02:08:25Z"},{"alias_kind":"arxiv_version","alias_value":"1003.3699v1","created_at":"2026-05-18T02:08:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1003.3699","created_at":"2026-05-18T02:08:25Z"},{"alias_kind":"pith_short_12","alias_value":"XX6WL2WSLG3Y","created_at":"2026-05-18T12:26:17Z"},{"alias_kind":"pith_short_16","alias_value":"XX6WL2WSLG3Y5NMD","created_at":"2026-05-18T12:26:17Z"},{"alias_kind":"pith_short_8","alias_value":"XX6WL2WS","created_at":"2026-05-18T12:26:17Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:XX6WL2WSLG3Y5NMDSLHMQDBWCK","target":"record","payload":{"canonical_record":{"source":{"id":"1003.3699","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2010-03-19T01:38:06Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"51edf71fefb2228a1c0c00f2177d770884d63bec7158c0f7d00a1e9aede3a09e","abstract_canon_sha256":"770e4b21b35cb87a21dacd7d27f706f22b8b8e5cb1a037e050c25fda6f4dcff7"},"schema_version":"1.0"},"canonical_sha256":"bdfd65ead259b78eb58392cec80c3612a31761676864405dcba9fea614a04abe","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:08:25.663725Z","signature_b64":"FsGOTB6MT5MK6yVxE2AlLN2A366e4JgI1afTKAA4dYBhsEPjYphmCLpSwWqkqgtidpxDuhJ7Cnsp5DYeDoTxCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"bdfd65ead259b78eb58392cec80c3612a31761676864405dcba9fea614a04abe","last_reissued_at":"2026-05-18T02:08:25.663135Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:08:25.663135Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1003.3699","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":"2026-05-18T02:08:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"iIesUL0DTNZtRYxlqA0eAK2/s6SdxmfqrLT/Ddbb+lpQkiBzCF2VSI0oUiFn77GnBOrByS0Z8XE60ICpuMq8DA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T06:34:22.202740Z"},"content_sha256":"cb683d2f0b08b094b595519b49225396fdc976374c3853bc47ad18bef247e6ca","schema_version":"1.0","event_id":"sha256:cb683d2f0b08b094b595519b49225396fdc976374c3853bc47ad18bef247e6ca"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:XX6WL2WSLG3Y5NMDSLHMQDBWCK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Ultra-sensitive Diamond Magnetometry Using Optimal Dynamic Decoupling","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mes-hall"],"primary_cat":"quant-ph","authors_text":"Charles D. Hill, Jared H. Cole, Liam T. Hall, Lloyd C. L. Hollenberg","submitted_at":"2010-03-19T01:38:06Z","abstract_excerpt":"New magnetometry techniques based on Nitrogen Vacancy (NV) defects in diamond have received much attention of late as a means to probe nanoscale magnetic environments. The sensitivity of a single NV magnetometer is primarily determined by the transverse spin relaxation time, $T_2$. Current approaches to improving the sensitivity employ crystals with a high NV density at the cost of spatial resolution, or extend $T_2$ via the manufacture of novel isotopically pure diamond crystals. We adopt a complementary approach, in which optimal dynamic decoupling techniques extend coherence times out to th"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1003.3699","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":""},"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":"2026-05-18T02:08:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QBQPViHCCVQTWMM7vJ8qhA/BiM/JTTjoWRtB1cAz0+8/x6Q6+tuk3Epi0Y4oH5TDydCiyCcHgfnzkGymRJL9Cg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T06:34:22.203102Z"},"content_sha256":"556e6ba5b8d79e6ce1a9d981f4858ff600f0bd869ef76d5ddbc478b2d282cda2","schema_version":"1.0","event_id":"sha256:556e6ba5b8d79e6ce1a9d981f4858ff600f0bd869ef76d5ddbc478b2d282cda2"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XX6WL2WSLG3Y5NMDSLHMQDBWCK/bundle.json","state_url":"https://pith.science/pith/XX6WL2WSLG3Y5NMDSLHMQDBWCK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XX6WL2WSLG3Y5NMDSLHMQDBWCK/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":"2026-06-01T06:34:22Z","links":{"resolver":"https://pith.science/pith/XX6WL2WSLG3Y5NMDSLHMQDBWCK","bundle":"https://pith.science/pith/XX6WL2WSLG3Y5NMDSLHMQDBWCK/bundle.json","state":"https://pith.science/pith/XX6WL2WSLG3Y5NMDSLHMQDBWCK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XX6WL2WSLG3Y5NMDSLHMQDBWCK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:XX6WL2WSLG3Y5NMDSLHMQDBWCK","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":"770e4b21b35cb87a21dacd7d27f706f22b8b8e5cb1a037e050c25fda6f4dcff7","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2010-03-19T01:38:06Z","title_canon_sha256":"51edf71fefb2228a1c0c00f2177d770884d63bec7158c0f7d00a1e9aede3a09e"},"schema_version":"1.0","source":{"id":"1003.3699","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1003.3699","created_at":"2026-05-18T02:08:25Z"},{"alias_kind":"arxiv_version","alias_value":"1003.3699v1","created_at":"2026-05-18T02:08:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1003.3699","created_at":"2026-05-18T02:08:25Z"},{"alias_kind":"pith_short_12","alias_value":"XX6WL2WSLG3Y","created_at":"2026-05-18T12:26:17Z"},{"alias_kind":"pith_short_16","alias_value":"XX6WL2WSLG3Y5NMD","created_at":"2026-05-18T12:26:17Z"},{"alias_kind":"pith_short_8","alias_value":"XX6WL2WS","created_at":"2026-05-18T12:26:17Z"}],"graph_snapshots":[{"event_id":"sha256:556e6ba5b8d79e6ce1a9d981f4858ff600f0bd869ef76d5ddbc478b2d282cda2","target":"graph","created_at":"2026-05-18T02:08:25Z","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":"New magnetometry techniques based on Nitrogen Vacancy (NV) defects in diamond have received much attention of late as a means to probe nanoscale magnetic environments. The sensitivity of a single NV magnetometer is primarily determined by the transverse spin relaxation time, $T_2$. Current approaches to improving the sensitivity employ crystals with a high NV density at the cost of spatial resolution, or extend $T_2$ via the manufacture of novel isotopically pure diamond crystals. We adopt a complementary approach, in which optimal dynamic decoupling techniques extend coherence times out to th","authors_text":"Charles D. Hill, Jared H. Cole, Liam T. Hall, Lloyd C. L. Hollenberg","cross_cats":["cond-mat.mes-hall"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2010-03-19T01:38:06Z","title":"Ultra-sensitive Diamond Magnetometry Using Optimal Dynamic Decoupling"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1003.3699","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:cb683d2f0b08b094b595519b49225396fdc976374c3853bc47ad18bef247e6ca","target":"record","created_at":"2026-05-18T02:08:25Z","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":"770e4b21b35cb87a21dacd7d27f706f22b8b8e5cb1a037e050c25fda6f4dcff7","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2010-03-19T01:38:06Z","title_canon_sha256":"51edf71fefb2228a1c0c00f2177d770884d63bec7158c0f7d00a1e9aede3a09e"},"schema_version":"1.0","source":{"id":"1003.3699","kind":"arxiv","version":1}},"canonical_sha256":"bdfd65ead259b78eb58392cec80c3612a31761676864405dcba9fea614a04abe","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"bdfd65ead259b78eb58392cec80c3612a31761676864405dcba9fea614a04abe","first_computed_at":"2026-05-18T02:08:25.663135Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:08:25.663135Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"FsGOTB6MT5MK6yVxE2AlLN2A366e4JgI1afTKAA4dYBhsEPjYphmCLpSwWqkqgtidpxDuhJ7Cnsp5DYeDoTxCw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:08:25.663725Z","signed_message":"canonical_sha256_bytes"},"source_id":"1003.3699","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:cb683d2f0b08b094b595519b49225396fdc976374c3853bc47ad18bef247e6ca","sha256:556e6ba5b8d79e6ce1a9d981f4858ff600f0bd869ef76d5ddbc478b2d282cda2"],"state_sha256":"84fbad2d8b6e786c520d4c105ff9a5c7e3d9008ee8541a581d77c42b87541003"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XARU1Fn9jQSG05q4lWrZrqN/R5kD1sLHYx+5jEKkzc09nCoaq7VaYUMuIS9eFpS8ToQIWyZNUWZ4iM4yDAtjBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T06:34:22.205484Z","bundle_sha256":"a1022af132e267586034e24e4878ae05889bc10d44fc146bb69d2c6dc1f73e4d"}}