{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2013:JDIPEWUYS6XA2ONGE5BBWIEBPD","short_pith_number":"pith:JDIPEWUY","schema_version":"1.0","canonical_sha256":"48d0f25a9897ae0d39a627421b208178c1dd83914bc5c5da659cd019fc643046","source":{"kind":"arxiv","id":"1304.4516","version":1},"attestation_state":"computed","paper":{"title":"Dependence of the microwave surface resistance of superconducting niobium on the magnitude of the rf field","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.acc-ph"],"primary_cat":"cond-mat.supr-con","authors_text":"A. Grassellino, A. Romanenko","submitted_at":"2013-04-16T16:41:43Z","abstract_excerpt":"Utilizing difference in temperature dependencies we decoupled BCS and residual components of the microwave surface resistance of superconducting niobium at all rf fields up to $B_\\mathrm{rf}\\sim110$ mT. We reveal that the residual resistance decreases with field at $B_\\mathrm{rf} \\lesssim$ 40 mT and strongly increases in chemically treated niobium at $B_\\mathrm{rf} > 80$ mT. We find that BCS surface resistance is weakly dependent on field in the clean limit, whereas a strong and peculiar field dependence emerges after $120^\\circ$C vacuum baking."},"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":"1304.4516","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2013-04-16T16:41:43Z","cross_cats_sorted":["physics.acc-ph"],"title_canon_sha256":"f1d8b06fc1ef7024f344587a607a547ccb3e721e4d4cd9eedad119814e9735e7","abstract_canon_sha256":"7c6b3788205e729ac2c929c503c53fbdaf547be09c670f83432bfffef90f5ee5"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:50:32.166109Z","signature_b64":"IDPAHNB8aiFHNFzfKGKNAwTXXf4ytm1gJzVJwYdFMk9cajDRfu+pQiK9AB8nO59C0bYyUlT3LIWstmlr41ZwAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"48d0f25a9897ae0d39a627421b208178c1dd83914bc5c5da659cd019fc643046","last_reissued_at":"2026-05-18T01:50:32.165570Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:50:32.165570Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Dependence of the microwave surface resistance of superconducting niobium on the magnitude of the rf field","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.acc-ph"],"primary_cat":"cond-mat.supr-con","authors_text":"A. Grassellino, A. Romanenko","submitted_at":"2013-04-16T16:41:43Z","abstract_excerpt":"Utilizing difference in temperature dependencies we decoupled BCS and residual components of the microwave surface resistance of superconducting niobium at all rf fields up to $B_\\mathrm{rf}\\sim110$ mT. We reveal that the residual resistance decreases with field at $B_\\mathrm{rf} \\lesssim$ 40 mT and strongly increases in chemically treated niobium at $B_\\mathrm{rf} > 80$ mT. We find that BCS surface resistance is weakly dependent on field in the clean limit, whereas a strong and peculiar field dependence emerges after $120^\\circ$C vacuum baking."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1304.4516","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":"1304.4516","created_at":"2026-05-18T01:50:32.165664+00:00"},{"alias_kind":"arxiv_version","alias_value":"1304.4516v1","created_at":"2026-05-18T01:50:32.165664+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1304.4516","created_at":"2026-05-18T01:50:32.165664+00:00"},{"alias_kind":"pith_short_12","alias_value":"JDIPEWUYS6XA","created_at":"2026-05-18T12:27:49.015174+00:00"},{"alias_kind":"pith_short_16","alias_value":"JDIPEWUYS6XA2ONG","created_at":"2026-05-18T12:27:49.015174+00:00"},{"alias_kind":"pith_short_8","alias_value":"JDIPEWUY","created_at":"2026-05-18T12:27:49.015174+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/JDIPEWUYS6XA2ONGE5BBWIEBPD","json":"https://pith.science/pith/JDIPEWUYS6XA2ONGE5BBWIEBPD.json","graph_json":"https://pith.science/api/pith-number/JDIPEWUYS6XA2ONGE5BBWIEBPD/graph.json","events_json":"https://pith.science/api/pith-number/JDIPEWUYS6XA2ONGE5BBWIEBPD/events.json","paper":"https://pith.science/paper/JDIPEWUY"},"agent_actions":{"view_html":"https://pith.science/pith/JDIPEWUYS6XA2ONGE5BBWIEBPD","download_json":"https://pith.science/pith/JDIPEWUYS6XA2ONGE5BBWIEBPD.json","view_paper":"https://pith.science/paper/JDIPEWUY","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1304.4516&json=true","fetch_graph":"https://pith.science/api/pith-number/JDIPEWUYS6XA2ONGE5BBWIEBPD/graph.json","fetch_events":"https://pith.science/api/pith-number/JDIPEWUYS6XA2ONGE5BBWIEBPD/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/JDIPEWUYS6XA2ONGE5BBWIEBPD/action/timestamp_anchor","attest_storage":"https://pith.science/pith/JDIPEWUYS6XA2ONGE5BBWIEBPD/action/storage_attestation","attest_author":"https://pith.science/pith/JDIPEWUYS6XA2ONGE5BBWIEBPD/action/author_attestation","sign_citation":"https://pith.science/pith/JDIPEWUYS6XA2ONGE5BBWIEBPD/action/citation_signature","submit_replication":"https://pith.science/pith/JDIPEWUYS6XA2ONGE5BBWIEBPD/action/replication_record"}},"created_at":"2026-05-18T01:50:32.165664+00:00","updated_at":"2026-05-18T01:50:32.165664+00:00"}