{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:7YHXTARTGH3G3OA5LKM4T5OL3O","short_pith_number":"pith:7YHXTART","canonical_record":{"source":{"id":"1901.01428","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2019-01-05T15:10:09Z","cross_cats_sorted":[],"title_canon_sha256":"782fdcc8e5765c2cf41b18784b7997e7b46c37dd0c2af50740781f1ed5358857","abstract_canon_sha256":"9b6435d12959876a5ec835492657bcddbf7c7efc12e7442e38670694929c19bd"},"schema_version":"1.0"},"canonical_sha256":"fe0f79823331f66db81d5a99c9f5cbdb8f615e3ef1a60acc3c6b98f846c346e9","source":{"kind":"arxiv","id":"1901.01428","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1901.01428","created_at":"2026-07-05T00:34:36Z"},{"alias_kind":"arxiv_version","alias_value":"1901.01428v2","created_at":"2026-07-05T00:34:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1901.01428","created_at":"2026-07-05T00:34:36Z"},{"alias_kind":"pith_short_12","alias_value":"7YHXTARTGH3G","created_at":"2026-07-05T00:34:36Z"},{"alias_kind":"pith_short_16","alias_value":"7YHXTARTGH3G3OA5","created_at":"2026-07-05T00:34:36Z"},{"alias_kind":"pith_short_8","alias_value":"7YHXTART","created_at":"2026-07-05T00:34:36Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:7YHXTARTGH3G3OA5LKM4T5OL3O","target":"record","payload":{"canonical_record":{"source":{"id":"1901.01428","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2019-01-05T15:10:09Z","cross_cats_sorted":[],"title_canon_sha256":"782fdcc8e5765c2cf41b18784b7997e7b46c37dd0c2af50740781f1ed5358857","abstract_canon_sha256":"9b6435d12959876a5ec835492657bcddbf7c7efc12e7442e38670694929c19bd"},"schema_version":"1.0"},"canonical_sha256":"fe0f79823331f66db81d5a99c9f5cbdb8f615e3ef1a60acc3c6b98f846c346e9","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:34:36.937004Z","signature_b64":"j3VzmAv3bmkygBU/+vSSz8s+L8Ss+ZOuRtpunAbghCqkqt9Y5+HLeHfcZ8hzb06TicvvTQx91Fs5RhFvg+4kBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"fe0f79823331f66db81d5a99c9f5cbdb8f615e3ef1a60acc3c6b98f846c346e9","last_reissued_at":"2026-07-05T00:34:36.936523Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:34:36.936523Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1901.01428","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":"2026-07-05T00:34:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7mEqCo+HA4mz7kpsCKy219vsCacupvQRGNSojgVf13pbr/5uV9/nYFNESCNJrQAL/ExSZ7Ivw5SZhBDRClE3Dg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-20T00:27:24.665807Z"},"content_sha256":"e5d691e3e81661af35675e1daf7ec0a6f2171540660622ea8470d340ce551476","schema_version":"1.0","event_id":"sha256:e5d691e3e81661af35675e1daf7ec0a6f2171540660622ea8470d340ce551476"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:7YHXTARTGH3G3OA5LKM4T5OL3O","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Noise Analysis of Open-Loop and Closed-Loop SAW Magnetic Field Sensor Systems","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.ins-det","authors_text":"Anne Kittmann, Eckhard Quandt, Enrico Rubiola, Jean-Michel Friedt, Michael H\\\"oft, Phillip Durdaut, Reinhard Kn\\\"ochel","submitted_at":"2019-01-05T15:10:09Z","abstract_excerpt":"Transmission surface acoustic wave (SAW) sensors are widely used in various fields of application. In order to maximize the limit of detection (LOD) of such sensor systems, it is of high importance to understand and to be able to quantify the relevant noise sources. In this paper, low noise readout systems for the application with a SAW delay line magnetic field sensor in an open-loop and closed-loop configuration are presented and analyzed with regard to their phase noise contribution. By applying oscillator phase noise theory to closed-loop sensor systems, it is shown that the phase noise of"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1901.01428","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/1901.01428/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":"2026-07-05T00:34:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"U8iPFt/wpch4sQDyLQcOl2S3I4tkFENJP499th0RbFo89dM5tok6Wa8doxR7f263/rFmZo92EPNnvg7OWIoACw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-20T00:27:24.666183Z"},"content_sha256":"1d59a113dd4ab2b5ebf1500e88df3674ae300bf66142b031ed91fdfe6af89b7b","schema_version":"1.0","event_id":"sha256:1d59a113dd4ab2b5ebf1500e88df3674ae300bf66142b031ed91fdfe6af89b7b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/7YHXTARTGH3G3OA5LKM4T5OL3O/bundle.json","state_url":"https://pith.science/pith/7YHXTARTGH3G3OA5LKM4T5OL3O/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/7YHXTARTGH3G3OA5LKM4T5OL3O/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":"2026-08-20T00:27:24Z","links":{"resolver":"https://pith.science/pith/7YHXTARTGH3G3OA5LKM4T5OL3O","bundle":"https://pith.science/pith/7YHXTARTGH3G3OA5LKM4T5OL3O/bundle.json","state":"https://pith.science/pith/7YHXTARTGH3G3OA5LKM4T5OL3O/state.json","well_known_bundle":"https://pith.science/.well-known/pith/7YHXTARTGH3G3OA5LKM4T5OL3O/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:7YHXTARTGH3G3OA5LKM4T5OL3O","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":"9b6435d12959876a5ec835492657bcddbf7c7efc12e7442e38670694929c19bd","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2019-01-05T15:10:09Z","title_canon_sha256":"782fdcc8e5765c2cf41b18784b7997e7b46c37dd0c2af50740781f1ed5358857"},"schema_version":"1.0","source":{"id":"1901.01428","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1901.01428","created_at":"2026-07-05T00:34:36Z"},{"alias_kind":"arxiv_version","alias_value":"1901.01428v2","created_at":"2026-07-05T00:34:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1901.01428","created_at":"2026-07-05T00:34:36Z"},{"alias_kind":"pith_short_12","alias_value":"7YHXTARTGH3G","created_at":"2026-07-05T00:34:36Z"},{"alias_kind":"pith_short_16","alias_value":"7YHXTARTGH3G3OA5","created_at":"2026-07-05T00:34:36Z"},{"alias_kind":"pith_short_8","alias_value":"7YHXTART","created_at":"2026-07-05T00:34:36Z"}],"graph_snapshots":[{"event_id":"sha256:1d59a113dd4ab2b5ebf1500e88df3674ae300bf66142b031ed91fdfe6af89b7b","target":"graph","created_at":"2026-07-05T00:34:36Z","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/1901.01428/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Transmission surface acoustic wave (SAW) sensors are widely used in various fields of application. In order to maximize the limit of detection (LOD) of such sensor systems, it is of high importance to understand and to be able to quantify the relevant noise sources. In this paper, low noise readout systems for the application with a SAW delay line magnetic field sensor in an open-loop and closed-loop configuration are presented and analyzed with regard to their phase noise contribution. By applying oscillator phase noise theory to closed-loop sensor systems, it is shown that the phase noise of","authors_text":"Anne Kittmann, Eckhard Quandt, Enrico Rubiola, Jean-Michel Friedt, Michael H\\\"oft, Phillip Durdaut, Reinhard Kn\\\"ochel","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2019-01-05T15:10:09Z","title":"Noise Analysis of Open-Loop and Closed-Loop SAW Magnetic Field Sensor Systems"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1901.01428","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:e5d691e3e81661af35675e1daf7ec0a6f2171540660622ea8470d340ce551476","target":"record","created_at":"2026-07-05T00:34:36Z","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":"9b6435d12959876a5ec835492657bcddbf7c7efc12e7442e38670694929c19bd","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2019-01-05T15:10:09Z","title_canon_sha256":"782fdcc8e5765c2cf41b18784b7997e7b46c37dd0c2af50740781f1ed5358857"},"schema_version":"1.0","source":{"id":"1901.01428","kind":"arxiv","version":2}},"canonical_sha256":"fe0f79823331f66db81d5a99c9f5cbdb8f615e3ef1a60acc3c6b98f846c346e9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"fe0f79823331f66db81d5a99c9f5cbdb8f615e3ef1a60acc3c6b98f846c346e9","first_computed_at":"2026-07-05T00:34:36.936523Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:34:36.936523Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"j3VzmAv3bmkygBU/+vSSz8s+L8Ss+ZOuRtpunAbghCqkqt9Y5+HLeHfcZ8hzb06TicvvTQx91Fs5RhFvg+4kBw==","signature_status":"signed_v1","signed_at":"2026-07-05T00:34:36.937004Z","signed_message":"canonical_sha256_bytes"},"source_id":"1901.01428","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e5d691e3e81661af35675e1daf7ec0a6f2171540660622ea8470d340ce551476","sha256:1d59a113dd4ab2b5ebf1500e88df3674ae300bf66142b031ed91fdfe6af89b7b"],"state_sha256":"ac5ddcff93f62492b44663b03e0078e28b343e2b3eacc7769472286f7e11b7a2"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AA1JnKxbedwXcahUtGVgwucjnp9LLO/ZofBt1UVlN+7PVA2FepA9ZMnjvOV8waZewPRp8uQhnTt5WstCaeMqCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-20T00:27:24.668582Z","bundle_sha256":"1c7051edaeb9c739d8f092874ce5c9d712bcb1c2c769c2f6b9be44b15646ea9c"}}