{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:34AOXM55KCNRY6KUI4OZXWB7DJ","short_pith_number":"pith:34AOXM55","canonical_record":{"source":{"id":"1709.03368","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-09-11T13:28:18Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"317031c04108917c8d0c96f7870c8193ab3141dec4978260c5a61594835fb51f","abstract_canon_sha256":"da06266c51d4a1e7483a6d3eb738ab8de6af8e2e938788e2d74072d0ed5e99c3"},"schema_version":"1.0"},"canonical_sha256":"df00ebb3bd509b1c7954471d9bd83f1a6dd22c83ff0b50e48bc3cb7f8f1040c4","source":{"kind":"arxiv","id":"1709.03368","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1709.03368","created_at":"2026-05-18T00:23:33Z"},{"alias_kind":"arxiv_version","alias_value":"1709.03368v2","created_at":"2026-05-18T00:23:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1709.03368","created_at":"2026-05-18T00:23:33Z"},{"alias_kind":"pith_short_12","alias_value":"34AOXM55KCNR","created_at":"2026-05-18T12:30:58Z"},{"alias_kind":"pith_short_16","alias_value":"34AOXM55KCNRY6KU","created_at":"2026-05-18T12:30:58Z"},{"alias_kind":"pith_short_8","alias_value":"34AOXM55","created_at":"2026-05-18T12:30:58Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:34AOXM55KCNRY6KUI4OZXWB7DJ","target":"record","payload":{"canonical_record":{"source":{"id":"1709.03368","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-09-11T13:28:18Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"317031c04108917c8d0c96f7870c8193ab3141dec4978260c5a61594835fb51f","abstract_canon_sha256":"da06266c51d4a1e7483a6d3eb738ab8de6af8e2e938788e2d74072d0ed5e99c3"},"schema_version":"1.0"},"canonical_sha256":"df00ebb3bd509b1c7954471d9bd83f1a6dd22c83ff0b50e48bc3cb7f8f1040c4","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:23:33.587418Z","signature_b64":"BzZsi2o+dizFZ4M3j9efONDHuj8vXyRJcTDJJQzwRHGLCoH6DaGY1TxAlTa+GsDbMi9F7U2pJ47tgp8zAzwcBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"df00ebb3bd509b1c7954471d9bd83f1a6dd22c83ff0b50e48bc3cb7f8f1040c4","last_reissued_at":"2026-05-18T00:23:33.586784Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:23:33.586784Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1709.03368","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":"2026-05-18T00:23:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"n0YZ43FSBE/usiPi3j9/IH9dhv5fauV4qVAoG39VrZwTysgZYfBA1LffKzV7oABWy2nSbjJ9eV4rGLBY474ECQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T10:21:35.302545Z"},"content_sha256":"a3f6d1d70ae31ed1417ad22f2aeb19bfd6e86a86176332557ad7bc0beb99c113","schema_version":"1.0","event_id":"sha256:a3f6d1d70ae31ed1417ad22f2aeb19bfd6e86a86176332557ad7bc0beb99c113"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:34AOXM55KCNRY6KUI4OZXWB7DJ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Spin ensemble-based AC magnetometry using concatenated dynamical decoupling at low temperatures","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mes-hall"],"primary_cat":"quant-ph","authors_text":"A. Jarmola, D. Budker, D. Farfurnik, N. Bar-gill","submitted_at":"2017-09-11T13:28:18Z","abstract_excerpt":"Ensembles of nitrogen-vacancy (NV) centers in diamond are widely used as AC magnetometers. While such measurements are usually performed using standard (XY) dynamical decoupling (DD) protocols at room temperature, we study the sensitivities achieved by utilizing various DD protocols, for measuring magnetic AC fields at frequencies in the 10-250 kHz range, at room temperature and 77 K. By performing measurements on an isotopically pure $^{12}$C sample, we find that the Carr-Purcell-Meiboom-Gill (CPMG) protocol, which is not robust against pulse imperfections, is less efficient for magnetometry "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1709.03368","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":"2026-05-18T00:23:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hJZXFxAuZdwo+sdmNqvScZqeEOrHesDQctjl+UHZXi5kz4tqdbuK/GkOrez9aAtcYfqIXyyYdnQhccOFrVHaDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T10:21:35.302915Z"},"content_sha256":"4a2005ead94f0639f1e08c512934f272a6302a080e013a14e07bd8b7012eb01e","schema_version":"1.0","event_id":"sha256:4a2005ead94f0639f1e08c512934f272a6302a080e013a14e07bd8b7012eb01e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/34AOXM55KCNRY6KUI4OZXWB7DJ/bundle.json","state_url":"https://pith.science/pith/34AOXM55KCNRY6KUI4OZXWB7DJ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/34AOXM55KCNRY6KUI4OZXWB7DJ/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":"2026-05-31T10:21:35Z","links":{"resolver":"https://pith.science/pith/34AOXM55KCNRY6KUI4OZXWB7DJ","bundle":"https://pith.science/pith/34AOXM55KCNRY6KUI4OZXWB7DJ/bundle.json","state":"https://pith.science/pith/34AOXM55KCNRY6KUI4OZXWB7DJ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/34AOXM55KCNRY6KUI4OZXWB7DJ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:34AOXM55KCNRY6KUI4OZXWB7DJ","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":"da06266c51d4a1e7483a6d3eb738ab8de6af8e2e938788e2d74072d0ed5e99c3","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-09-11T13:28:18Z","title_canon_sha256":"317031c04108917c8d0c96f7870c8193ab3141dec4978260c5a61594835fb51f"},"schema_version":"1.0","source":{"id":"1709.03368","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1709.03368","created_at":"2026-05-18T00:23:33Z"},{"alias_kind":"arxiv_version","alias_value":"1709.03368v2","created_at":"2026-05-18T00:23:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1709.03368","created_at":"2026-05-18T00:23:33Z"},{"alias_kind":"pith_short_12","alias_value":"34AOXM55KCNR","created_at":"2026-05-18T12:30:58Z"},{"alias_kind":"pith_short_16","alias_value":"34AOXM55KCNRY6KU","created_at":"2026-05-18T12:30:58Z"},{"alias_kind":"pith_short_8","alias_value":"34AOXM55","created_at":"2026-05-18T12:30:58Z"}],"graph_snapshots":[{"event_id":"sha256:4a2005ead94f0639f1e08c512934f272a6302a080e013a14e07bd8b7012eb01e","target":"graph","created_at":"2026-05-18T00:23:33Z","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":"Ensembles of nitrogen-vacancy (NV) centers in diamond are widely used as AC magnetometers. While such measurements are usually performed using standard (XY) dynamical decoupling (DD) protocols at room temperature, we study the sensitivities achieved by utilizing various DD protocols, for measuring magnetic AC fields at frequencies in the 10-250 kHz range, at room temperature and 77 K. By performing measurements on an isotopically pure $^{12}$C sample, we find that the Carr-Purcell-Meiboom-Gill (CPMG) protocol, which is not robust against pulse imperfections, is less efficient for magnetometry ","authors_text":"A. Jarmola, D. Budker, D. Farfurnik, N. Bar-gill","cross_cats":["cond-mat.mes-hall"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-09-11T13:28:18Z","title":"Spin ensemble-based AC magnetometry using concatenated dynamical decoupling at low temperatures"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1709.03368","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:a3f6d1d70ae31ed1417ad22f2aeb19bfd6e86a86176332557ad7bc0beb99c113","target":"record","created_at":"2026-05-18T00:23:33Z","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":"da06266c51d4a1e7483a6d3eb738ab8de6af8e2e938788e2d74072d0ed5e99c3","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-09-11T13:28:18Z","title_canon_sha256":"317031c04108917c8d0c96f7870c8193ab3141dec4978260c5a61594835fb51f"},"schema_version":"1.0","source":{"id":"1709.03368","kind":"arxiv","version":2}},"canonical_sha256":"df00ebb3bd509b1c7954471d9bd83f1a6dd22c83ff0b50e48bc3cb7f8f1040c4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"df00ebb3bd509b1c7954471d9bd83f1a6dd22c83ff0b50e48bc3cb7f8f1040c4","first_computed_at":"2026-05-18T00:23:33.586784Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:23:33.586784Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"BzZsi2o+dizFZ4M3j9efONDHuj8vXyRJcTDJJQzwRHGLCoH6DaGY1TxAlTa+GsDbMi9F7U2pJ47tgp8zAzwcBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:23:33.587418Z","signed_message":"canonical_sha256_bytes"},"source_id":"1709.03368","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a3f6d1d70ae31ed1417ad22f2aeb19bfd6e86a86176332557ad7bc0beb99c113","sha256:4a2005ead94f0639f1e08c512934f272a6302a080e013a14e07bd8b7012eb01e"],"state_sha256":"731a3136ea948ea16cc51b7d748028c009982dae5a7948fccefb6c76eda9a887"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"sfXGAze3iJijh080i5c7WnHQre2qZoVYmD6E3bg2ZekSPlD9bVaeQ9+bNCaU97X7zaGZsY3SDHdPKLhi/oaiBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T10:21:35.305262Z","bundle_sha256":"a5c22ac5a4e66e1f5efb4a0724b97ba5fb6d5d1677ba3f8c242451608d00b7be"}}