{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:4CVZTUOVO3SV6HPSOXUX637RII","short_pith_number":"pith:4CVZTUOV","canonical_record":{"source":{"id":"1009.1074","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2010-09-06T14:45:51Z","cross_cats_sorted":[],"title_canon_sha256":"4b4f245861d91957516531ac694579703f407e8f8f96e3ebb280a3f738826004","abstract_canon_sha256":"02708bc8fc188de9b2b1b37f5758846b8868e0c98505aea40c96bc926f70e832"},"schema_version":"1.0"},"canonical_sha256":"e0ab99d1d576e55f1df275e97f6ff142271dd64d7eff2b38eb79680a59f57f1f","source":{"kind":"arxiv","id":"1009.1074","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1009.1074","created_at":"2026-05-18T04:41:24Z"},{"alias_kind":"arxiv_version","alias_value":"1009.1074v1","created_at":"2026-05-18T04:41:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1009.1074","created_at":"2026-05-18T04:41:24Z"},{"alias_kind":"pith_short_12","alias_value":"4CVZTUOVO3SV","created_at":"2026-05-18T12:26:03Z"},{"alias_kind":"pith_short_16","alias_value":"4CVZTUOVO3SV6HPS","created_at":"2026-05-18T12:26:03Z"},{"alias_kind":"pith_short_8","alias_value":"4CVZTUOV","created_at":"2026-05-18T12:26:03Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:4CVZTUOVO3SV6HPSOXUX637RII","target":"record","payload":{"canonical_record":{"source":{"id":"1009.1074","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2010-09-06T14:45:51Z","cross_cats_sorted":[],"title_canon_sha256":"4b4f245861d91957516531ac694579703f407e8f8f96e3ebb280a3f738826004","abstract_canon_sha256":"02708bc8fc188de9b2b1b37f5758846b8868e0c98505aea40c96bc926f70e832"},"schema_version":"1.0"},"canonical_sha256":"e0ab99d1d576e55f1df275e97f6ff142271dd64d7eff2b38eb79680a59f57f1f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:41:24.119468Z","signature_b64":"2zfbCg0m1BcvmkCpLW794i+RfE22dfT5Hx9aHT1ebBgoED9gISD7gSEKWgLNoyBHzbnfvRDD0L7vDP/mqn/lAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e0ab99d1d576e55f1df275e97f6ff142271dd64d7eff2b38eb79680a59f57f1f","last_reissued_at":"2026-05-18T04:41:24.118889Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:41:24.118889Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1009.1074","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T04:41:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Ki4CEqEmX6kh6i/zira3YyXlp6YmDosdLkEI0W+aH1BlHWqIu+TqoV5GOjPvLROrdSdjShk5YZhlWzVeg8Y8DQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T12:11:28.418639Z"},"content_sha256":"c2306e56f42338b76a227e87d29266d470624851098c3b60b12b93a2634d9202","schema_version":"1.0","event_id":"sha256:c2306e56f42338b76a227e87d29266d470624851098c3b60b12b93a2634d9202"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:4CVZTUOVO3SV6HPSOXUX637RII","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Contactless estimation of critical current density in thin superconducting films and its temperature dependence using ac magnetic measurements","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.supr-con","authors_text":"Ahmed Youssef, Lucia Banicova, Zdenek Janu, Zdenek Svindrych","submitted_at":"2010-09-06T14:45:51Z","abstract_excerpt":"We have measured magnetic response of second-generation high temperature superconductor YBa2Cu3Ox wire and Nb thin film in perpendicular ac field as a function of temperature. We compare experimental complex ac susceptibility to the calculated susceptibility based on the model of Bean's critical-state response in two-dimensional (2D) disk in perpendicular field. The harmonic analysis is needed for comparison between the model and the experimental data. We present a method of linking model and experimental susceptibility. Good agreement of experimental susceptibility with model susceptibility o"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1009.1074","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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T04:41:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"im9oUw196051expO97r/Ni1NewaWoKevNrkvcE/24xLzDXoAy+GWSWPIuOY1Fc0KqpOcvi6mOkgtH1hhJJBNAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T12:11:28.418983Z"},"content_sha256":"90b6dfc1df88f5235a3cee72eda1b6eab34a313b82d67f42629e5ef437426d29","schema_version":"1.0","event_id":"sha256:90b6dfc1df88f5235a3cee72eda1b6eab34a313b82d67f42629e5ef437426d29"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4CVZTUOVO3SV6HPSOXUX637RII/bundle.json","state_url":"https://pith.science/pith/4CVZTUOVO3SV6HPSOXUX637RII/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4CVZTUOVO3SV6HPSOXUX637RII/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":"2026-06-05T12:11:28Z","links":{"resolver":"https://pith.science/pith/4CVZTUOVO3SV6HPSOXUX637RII","bundle":"https://pith.science/pith/4CVZTUOVO3SV6HPSOXUX637RII/bundle.json","state":"https://pith.science/pith/4CVZTUOVO3SV6HPSOXUX637RII/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4CVZTUOVO3SV6HPSOXUX637RII/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:4CVZTUOVO3SV6HPSOXUX637RII","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":"02708bc8fc188de9b2b1b37f5758846b8868e0c98505aea40c96bc926f70e832","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2010-09-06T14:45:51Z","title_canon_sha256":"4b4f245861d91957516531ac694579703f407e8f8f96e3ebb280a3f738826004"},"schema_version":"1.0","source":{"id":"1009.1074","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1009.1074","created_at":"2026-05-18T04:41:24Z"},{"alias_kind":"arxiv_version","alias_value":"1009.1074v1","created_at":"2026-05-18T04:41:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1009.1074","created_at":"2026-05-18T04:41:24Z"},{"alias_kind":"pith_short_12","alias_value":"4CVZTUOVO3SV","created_at":"2026-05-18T12:26:03Z"},{"alias_kind":"pith_short_16","alias_value":"4CVZTUOVO3SV6HPS","created_at":"2026-05-18T12:26:03Z"},{"alias_kind":"pith_short_8","alias_value":"4CVZTUOV","created_at":"2026-05-18T12:26:03Z"}],"graph_snapshots":[{"event_id":"sha256:90b6dfc1df88f5235a3cee72eda1b6eab34a313b82d67f42629e5ef437426d29","target":"graph","created_at":"2026-05-18T04:41:24Z","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":"We have measured magnetic response of second-generation high temperature superconductor YBa2Cu3Ox wire and Nb thin film in perpendicular ac field as a function of temperature. We compare experimental complex ac susceptibility to the calculated susceptibility based on the model of Bean's critical-state response in two-dimensional (2D) disk in perpendicular field. The harmonic analysis is needed for comparison between the model and the experimental data. We present a method of linking model and experimental susceptibility. Good agreement of experimental susceptibility with model susceptibility o","authors_text":"Ahmed Youssef, Lucia Banicova, Zdenek Janu, Zdenek Svindrych","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2010-09-06T14:45:51Z","title":"Contactless estimation of critical current density in thin superconducting films and its temperature dependence using ac magnetic measurements"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1009.1074","kind":"arxiv","version":1},"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:c2306e56f42338b76a227e87d29266d470624851098c3b60b12b93a2634d9202","target":"record","created_at":"2026-05-18T04:41:24Z","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":"02708bc8fc188de9b2b1b37f5758846b8868e0c98505aea40c96bc926f70e832","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2010-09-06T14:45:51Z","title_canon_sha256":"4b4f245861d91957516531ac694579703f407e8f8f96e3ebb280a3f738826004"},"schema_version":"1.0","source":{"id":"1009.1074","kind":"arxiv","version":1}},"canonical_sha256":"e0ab99d1d576e55f1df275e97f6ff142271dd64d7eff2b38eb79680a59f57f1f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e0ab99d1d576e55f1df275e97f6ff142271dd64d7eff2b38eb79680a59f57f1f","first_computed_at":"2026-05-18T04:41:24.118889Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:41:24.118889Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"2zfbCg0m1BcvmkCpLW794i+RfE22dfT5Hx9aHT1ebBgoED9gISD7gSEKWgLNoyBHzbnfvRDD0L7vDP/mqn/lAw==","signature_status":"signed_v1","signed_at":"2026-05-18T04:41:24.119468Z","signed_message":"canonical_sha256_bytes"},"source_id":"1009.1074","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c2306e56f42338b76a227e87d29266d470624851098c3b60b12b93a2634d9202","sha256:90b6dfc1df88f5235a3cee72eda1b6eab34a313b82d67f42629e5ef437426d29"],"state_sha256":"1f42ce9d352790180a89e74a458f24f47f62b7edd39e5a1d4b810f377b874fbb"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZZHE8HpeB7JgfLf9myLkUm7PpCyvveP89gJWXnYES6YKE764C4r/gHv2hcCfwRoMuXx6rlRq1CMwvd7MrFJ0Dg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-05T12:11:28.421185Z","bundle_sha256":"4c2714cfa9ca80cfe99a9e929fc09092b9cc2f85b232e2c2463c32e48a0caa6c"}}