{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2017:3EAFKMAHP5OMYAQCSLQRYTZJ3C","short_pith_number":"pith:3EAFKMAH","schema_version":"1.0","canonical_sha256":"d9005530077f5ccc020292e11c4f29d889b561d980b802f319763970f35f2c47","source":{"kind":"arxiv","id":"1702.05428","version":1},"attestation_state":"computed","paper":{"title":"An ultra-sensitive and wideband magnetometer based on a superconducting quantum interference device","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.supr-con"],"primary_cat":"physics.ins-det","authors_text":"Dietmar Drung, Jan-Hendrik Storm, Peter H\\\"ommen, Rainer K\\\"orber","submitted_at":"2017-02-17T16:51:21Z","abstract_excerpt":"The magnetic field noise in superconducting quantum interference devices (SQUIDs) used for biomagnetic research such as magnetoencephalography or ultra-low-field nuclear magnetic resonance is usually limited by instrumental dewar noise. We constructed a wideband, ultra-low noise system with a 45 mm diameter superconducting pick-up coil inductively coupled to a current sensor SQUID. Thermal noise in the liquid helium dewar is minimized by using aluminized polyester fabric as superinsulation and aluminum oxide strips as heat shields, respectively. With a magnetometer pick-up coil in the center o"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1702.05428","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2017-02-17T16:51:21Z","cross_cats_sorted":["cond-mat.supr-con"],"title_canon_sha256":"7a79c5fb145be07dcf44cbf504ee3db01693a589d221517903e1b508fc592ebf","abstract_canon_sha256":"2b8b26b45980b70a5050da0ff6aab6b0493bb3c993e8a35f1e784889e5fad2ec"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:50:31.761489Z","signature_b64":"k3oBIMZyfwlWhnGARGnU+aSzjpOjMNYY5t7qBRRPNOzsdN2Efo3DRfYqzZVwjsPgREWXb8TOsBBaSbsBGj0ZCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d9005530077f5ccc020292e11c4f29d889b561d980b802f319763970f35f2c47","last_reissued_at":"2026-05-18T00:50:31.760732Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:50:31.760732Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"An ultra-sensitive and wideband magnetometer based on a superconducting quantum interference device","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.supr-con"],"primary_cat":"physics.ins-det","authors_text":"Dietmar Drung, Jan-Hendrik Storm, Peter H\\\"ommen, Rainer K\\\"orber","submitted_at":"2017-02-17T16:51:21Z","abstract_excerpt":"The magnetic field noise in superconducting quantum interference devices (SQUIDs) used for biomagnetic research such as magnetoencephalography or ultra-low-field nuclear magnetic resonance is usually limited by instrumental dewar noise. We constructed a wideband, ultra-low noise system with a 45 mm diameter superconducting pick-up coil inductively coupled to a current sensor SQUID. Thermal noise in the liquid helium dewar is minimized by using aluminized polyester fabric as superinsulation and aluminum oxide strips as heat shields, respectively. With a magnetometer pick-up coil in the center o"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1702.05428","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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1702.05428","created_at":"2026-05-18T00:50:31.760855+00:00"},{"alias_kind":"arxiv_version","alias_value":"1702.05428v1","created_at":"2026-05-18T00:50:31.760855+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1702.05428","created_at":"2026-05-18T00:50:31.760855+00:00"},{"alias_kind":"pith_short_12","alias_value":"3EAFKMAHP5OM","created_at":"2026-05-18T12:30:58.224056+00:00"},{"alias_kind":"pith_short_16","alias_value":"3EAFKMAHP5OMYAQC","created_at":"2026-05-18T12:30:58.224056+00:00"},{"alias_kind":"pith_short_8","alias_value":"3EAFKMAH","created_at":"2026-05-18T12:30:58.224056+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/3EAFKMAHP5OMYAQCSLQRYTZJ3C","json":"https://pith.science/pith/3EAFKMAHP5OMYAQCSLQRYTZJ3C.json","graph_json":"https://pith.science/api/pith-number/3EAFKMAHP5OMYAQCSLQRYTZJ3C/graph.json","events_json":"https://pith.science/api/pith-number/3EAFKMAHP5OMYAQCSLQRYTZJ3C/events.json","paper":"https://pith.science/paper/3EAFKMAH"},"agent_actions":{"view_html":"https://pith.science/pith/3EAFKMAHP5OMYAQCSLQRYTZJ3C","download_json":"https://pith.science/pith/3EAFKMAHP5OMYAQCSLQRYTZJ3C.json","view_paper":"https://pith.science/paper/3EAFKMAH","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1702.05428&json=true","fetch_graph":"https://pith.science/api/pith-number/3EAFKMAHP5OMYAQCSLQRYTZJ3C/graph.json","fetch_events":"https://pith.science/api/pith-number/3EAFKMAHP5OMYAQCSLQRYTZJ3C/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/3EAFKMAHP5OMYAQCSLQRYTZJ3C/action/timestamp_anchor","attest_storage":"https://pith.science/pith/3EAFKMAHP5OMYAQCSLQRYTZJ3C/action/storage_attestation","attest_author":"https://pith.science/pith/3EAFKMAHP5OMYAQCSLQRYTZJ3C/action/author_attestation","sign_citation":"https://pith.science/pith/3EAFKMAHP5OMYAQCSLQRYTZJ3C/action/citation_signature","submit_replication":"https://pith.science/pith/3EAFKMAHP5OMYAQCSLQRYTZJ3C/action/replication_record"}},"created_at":"2026-05-18T00:50:31.760855+00:00","updated_at":"2026-05-18T00:50:31.760855+00:00"}