{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2011:JMHAKUBBUPUVPHOVUWR7RAEKPJ","short_pith_number":"pith:JMHAKUBB","schema_version":"1.0","canonical_sha256":"4b0e055021a3e9579dd5a5a3f8808a7a4d9e8c89d94f5ea5402d16ac7f4be049","source":{"kind":"arxiv","id":"1112.2847","version":1},"attestation_state":"computed","paper":{"title":"Exact cloaking of uniform magnetic fields with a superconductor-magnetic bilayer","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.supr-con","authors_text":"Alvaro Sanchez, Carles Navau, Jordi Prat-Camps","submitted_at":"2011-12-13T10:27:23Z","abstract_excerpt":"The experimental realization of cloaks for electromagnetic fields has been possible only in reduced schemes because of extreme material conditions required in exact cloaks. Here we analytically demonstrate that a simple arrangement of two concentric homogeneous and isotropic layers with different permeabilities can keep a uniform externally applied magnetic field unperturbed. If the inner layer is superconducting, the device prevents exterior fields from entering an enclosed region, which represents a case for an exact cloaking of uniform fields. When the applied field is inhomogeneous the clo"},"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":"1112.2847","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2011-12-13T10:27:23Z","cross_cats_sorted":[],"title_canon_sha256":"1d6434753c52196d87e21083a4a6d35c849adf2ec19f27a5699f53b914c12eda","abstract_canon_sha256":"779ca500e8b8a6b7e62b6db2a10181ff18e4c2371bfff1d529a475c03e927d1b"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:06:32.270403Z","signature_b64":"/BNKq6Fetg9rw+sVK0DEphbEl8EzLmByW6a0Df/E3uCUjO/yTq6xL/dGbjWPiPO06yCox0gIbTZAXmvI2Pb9Aw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4b0e055021a3e9579dd5a5a3f8808a7a4d9e8c89d94f5ea5402d16ac7f4be049","last_reissued_at":"2026-05-18T04:06:32.269819Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:06:32.269819Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Exact cloaking of uniform magnetic fields with a superconductor-magnetic bilayer","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.supr-con","authors_text":"Alvaro Sanchez, Carles Navau, Jordi Prat-Camps","submitted_at":"2011-12-13T10:27:23Z","abstract_excerpt":"The experimental realization of cloaks for electromagnetic fields has been possible only in reduced schemes because of extreme material conditions required in exact cloaks. Here we analytically demonstrate that a simple arrangement of two concentric homogeneous and isotropic layers with different permeabilities can keep a uniform externally applied magnetic field unperturbed. If the inner layer is superconducting, the device prevents exterior fields from entering an enclosed region, which represents a case for an exact cloaking of uniform fields. When the applied field is inhomogeneous the clo"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1112.2847","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":"1112.2847","created_at":"2026-05-18T04:06:32.269912+00:00"},{"alias_kind":"arxiv_version","alias_value":"1112.2847v1","created_at":"2026-05-18T04:06:32.269912+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1112.2847","created_at":"2026-05-18T04:06:32.269912+00:00"},{"alias_kind":"pith_short_12","alias_value":"JMHAKUBBUPUV","created_at":"2026-05-18T12:26:32.869790+00:00"},{"alias_kind":"pith_short_16","alias_value":"JMHAKUBBUPUVPHOV","created_at":"2026-05-18T12:26:32.869790+00:00"},{"alias_kind":"pith_short_8","alias_value":"JMHAKUBB","created_at":"2026-05-18T12:26:32.869790+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/JMHAKUBBUPUVPHOVUWR7RAEKPJ","json":"https://pith.science/pith/JMHAKUBBUPUVPHOVUWR7RAEKPJ.json","graph_json":"https://pith.science/api/pith-number/JMHAKUBBUPUVPHOVUWR7RAEKPJ/graph.json","events_json":"https://pith.science/api/pith-number/JMHAKUBBUPUVPHOVUWR7RAEKPJ/events.json","paper":"https://pith.science/paper/JMHAKUBB"},"agent_actions":{"view_html":"https://pith.science/pith/JMHAKUBBUPUVPHOVUWR7RAEKPJ","download_json":"https://pith.science/pith/JMHAKUBBUPUVPHOVUWR7RAEKPJ.json","view_paper":"https://pith.science/paper/JMHAKUBB","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1112.2847&json=true","fetch_graph":"https://pith.science/api/pith-number/JMHAKUBBUPUVPHOVUWR7RAEKPJ/graph.json","fetch_events":"https://pith.science/api/pith-number/JMHAKUBBUPUVPHOVUWR7RAEKPJ/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/JMHAKUBBUPUVPHOVUWR7RAEKPJ/action/timestamp_anchor","attest_storage":"https://pith.science/pith/JMHAKUBBUPUVPHOVUWR7RAEKPJ/action/storage_attestation","attest_author":"https://pith.science/pith/JMHAKUBBUPUVPHOVUWR7RAEKPJ/action/author_attestation","sign_citation":"https://pith.science/pith/JMHAKUBBUPUVPHOVUWR7RAEKPJ/action/citation_signature","submit_replication":"https://pith.science/pith/JMHAKUBBUPUVPHOVUWR7RAEKPJ/action/replication_record"}},"created_at":"2026-05-18T04:06:32.269912+00:00","updated_at":"2026-05-18T04:06:32.269912+00:00"}