{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:SJKWGIQKNIOM4P56NW2YC5WI2C","short_pith_number":"pith:SJKWGIQK","canonical_record":{"source":{"id":"1808.04494","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2018-08-14T00:18:24Z","cross_cats_sorted":[],"title_canon_sha256":"ee97358a6a41148ba768fa9b173fc1955137bac49fab0806279b8f3ac2b7b561","abstract_canon_sha256":"191ab21f9193a69bcc04f40a67431d5feffdc2189de237e4905b718eef3012da"},"schema_version":"1.0"},"canonical_sha256":"925563220a6a1cce3fbe6db58176c8d098b440774d39c06f1e9f037403d6be7c","source":{"kind":"arxiv","id":"1808.04494","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1808.04494","created_at":"2026-05-17T23:44:33Z"},{"alias_kind":"arxiv_version","alias_value":"1808.04494v2","created_at":"2026-05-17T23:44:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1808.04494","created_at":"2026-05-17T23:44:33Z"},{"alias_kind":"pith_short_12","alias_value":"SJKWGIQKNIOM","created_at":"2026-05-18T12:32:53Z"},{"alias_kind":"pith_short_16","alias_value":"SJKWGIQKNIOM4P56","created_at":"2026-05-18T12:32:53Z"},{"alias_kind":"pith_short_8","alias_value":"SJKWGIQK","created_at":"2026-05-18T12:32:53Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:SJKWGIQKNIOM4P56NW2YC5WI2C","target":"record","payload":{"canonical_record":{"source":{"id":"1808.04494","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2018-08-14T00:18:24Z","cross_cats_sorted":[],"title_canon_sha256":"ee97358a6a41148ba768fa9b173fc1955137bac49fab0806279b8f3ac2b7b561","abstract_canon_sha256":"191ab21f9193a69bcc04f40a67431d5feffdc2189de237e4905b718eef3012da"},"schema_version":"1.0"},"canonical_sha256":"925563220a6a1cce3fbe6db58176c8d098b440774d39c06f1e9f037403d6be7c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:44:33.947413Z","signature_b64":"ABMZNF9ot79mhpgHPZ2RvQzGQyTaVgyu4k2W0LOUJz+Vj2wxYY1gqFEJ7oL+PtLbSzjPmThNm0u9Yrf5MrEcDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"925563220a6a1cce3fbe6db58176c8d098b440774d39c06f1e9f037403d6be7c","last_reissued_at":"2026-05-17T23:44:33.946817Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:44:33.946817Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1808.04494","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-17T23:44:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"va8TIZcV6MOcwWj5DXkTFM1eB/9pklaYXw/po6CHieZiLFHHfX7hEpQy7mv+UX4R6OaR7pUKpfoSNXrpXsOKAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-19T02:51:47.530331Z"},"content_sha256":"579a2d214d84ff2807eb776eb319751b1012dc2889a3b9b9b920cbc32d237c8f","schema_version":"1.0","event_id":"sha256:579a2d214d84ff2807eb776eb319751b1012dc2889a3b9b9b920cbc32d237c8f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:SJKWGIQKNIOM4P56NW2YC5WI2C","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Cross-sensor feedback stabilization of an emulated quantum spin gyroscope","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Ashok Ajoy, Daniel J. Twitchen, Jean-Christophe Jaskula, Kasturi Saha, Matthew Markham, Paola Cappellaro","submitted_at":"2018-08-14T00:18:24Z","abstract_excerpt":"Quantum sensors, such as the Nitrogen Vacancy (NV) color center in diamond, are known for their exquisite sensitivity, but their performance over time are subject to degradation by environmental noise. To improve the long-term robustness of a quantum sensor, here we realize an integrated combinatorial spin sensor in the same micrometer-scale footprint, which exploits two different spin sensitivities to distinct physical quantities to stabilize one spin sensor with local information collected in realtime via the second sensor. We show that we can use the electronic spins of a large ensemble of "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1808.04494","kind":"arxiv","version":2},"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":"2026-05-17T23:44:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5ej807ARloy1NQV+kfq8WQ5v2qgLeoPbcudQIRDC9fxQiH3I2hkB21D/zQ5Yn4eznKmYTYr0VRIbmSZ0MpHcCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-19T02:51:47.530690Z"},"content_sha256":"6b5f4d4027e0fa6b957bd75ea036c39594839a8670730e3cccb6484c3101a9ff","schema_version":"1.0","event_id":"sha256:6b5f4d4027e0fa6b957bd75ea036c39594839a8670730e3cccb6484c3101a9ff"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/SJKWGIQKNIOM4P56NW2YC5WI2C/bundle.json","state_url":"https://pith.science/pith/SJKWGIQKNIOM4P56NW2YC5WI2C/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/SJKWGIQKNIOM4P56NW2YC5WI2C/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":"2026-05-19T02:51:47Z","links":{"resolver":"https://pith.science/pith/SJKWGIQKNIOM4P56NW2YC5WI2C","bundle":"https://pith.science/pith/SJKWGIQKNIOM4P56NW2YC5WI2C/bundle.json","state":"https://pith.science/pith/SJKWGIQKNIOM4P56NW2YC5WI2C/state.json","well_known_bundle":"https://pith.science/.well-known/pith/SJKWGIQKNIOM4P56NW2YC5WI2C/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:SJKWGIQKNIOM4P56NW2YC5WI2C","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":"191ab21f9193a69bcc04f40a67431d5feffdc2189de237e4905b718eef3012da","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2018-08-14T00:18:24Z","title_canon_sha256":"ee97358a6a41148ba768fa9b173fc1955137bac49fab0806279b8f3ac2b7b561"},"schema_version":"1.0","source":{"id":"1808.04494","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1808.04494","created_at":"2026-05-17T23:44:33Z"},{"alias_kind":"arxiv_version","alias_value":"1808.04494v2","created_at":"2026-05-17T23:44:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1808.04494","created_at":"2026-05-17T23:44:33Z"},{"alias_kind":"pith_short_12","alias_value":"SJKWGIQKNIOM","created_at":"2026-05-18T12:32:53Z"},{"alias_kind":"pith_short_16","alias_value":"SJKWGIQKNIOM4P56","created_at":"2026-05-18T12:32:53Z"},{"alias_kind":"pith_short_8","alias_value":"SJKWGIQK","created_at":"2026-05-18T12:32:53Z"}],"graph_snapshots":[{"event_id":"sha256:6b5f4d4027e0fa6b957bd75ea036c39594839a8670730e3cccb6484c3101a9ff","target":"graph","created_at":"2026-05-17T23:44:33Z","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":"Quantum sensors, such as the Nitrogen Vacancy (NV) color center in diamond, are known for their exquisite sensitivity, but their performance over time are subject to degradation by environmental noise. To improve the long-term robustness of a quantum sensor, here we realize an integrated combinatorial spin sensor in the same micrometer-scale footprint, which exploits two different spin sensitivities to distinct physical quantities to stabilize one spin sensor with local information collected in realtime via the second sensor. We show that we can use the electronic spins of a large ensemble of ","authors_text":"Ashok Ajoy, Daniel J. Twitchen, Jean-Christophe Jaskula, Kasturi Saha, Matthew Markham, Paola Cappellaro","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2018-08-14T00:18:24Z","title":"Cross-sensor feedback stabilization of an emulated quantum spin gyroscope"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1808.04494","kind":"arxiv","version":2},"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":"sha256:579a2d214d84ff2807eb776eb319751b1012dc2889a3b9b9b920cbc32d237c8f","target":"record","created_at":"2026-05-17T23:44:33Z","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":"191ab21f9193a69bcc04f40a67431d5feffdc2189de237e4905b718eef3012da","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2018-08-14T00:18:24Z","title_canon_sha256":"ee97358a6a41148ba768fa9b173fc1955137bac49fab0806279b8f3ac2b7b561"},"schema_version":"1.0","source":{"id":"1808.04494","kind":"arxiv","version":2}},"canonical_sha256":"925563220a6a1cce3fbe6db58176c8d098b440774d39c06f1e9f037403d6be7c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"925563220a6a1cce3fbe6db58176c8d098b440774d39c06f1e9f037403d6be7c","first_computed_at":"2026-05-17T23:44:33.946817Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:44:33.946817Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ABMZNF9ot79mhpgHPZ2RvQzGQyTaVgyu4k2W0LOUJz+Vj2wxYY1gqFEJ7oL+PtLbSzjPmThNm0u9Yrf5MrEcDQ==","signature_status":"signed_v1","signed_at":"2026-05-17T23:44:33.947413Z","signed_message":"canonical_sha256_bytes"},"source_id":"1808.04494","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:579a2d214d84ff2807eb776eb319751b1012dc2889a3b9b9b920cbc32d237c8f","sha256:6b5f4d4027e0fa6b957bd75ea036c39594839a8670730e3cccb6484c3101a9ff"],"state_sha256":"e18c2fc623f94c81acde70f8e4022e01b8dd46db90cabd7a5f91901db2753f4d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+hR72XzM9R8IQWjxv3jNRkZaPawBLD453/Q85pNHOU3ryLZb/0V+eUrzN+lPFiud/2368YPnsOPbFaoHCxQsBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-19T02:51:47.532130Z","bundle_sha256":"9e79b8e9ce1c26b7ee514b74a8f93c5bfa0281579435304a065e2608000c2e98"}}