{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:65G7AWAG7CXPIOMATLGBMJ4NPI","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":"4f576c16bf47e00136a36329bef6478c8d5ab319e4311ae0a8532578fdded00f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2013-10-17T09:07:29Z","title_canon_sha256":"2f40ccf4e4a4a336b60201d9755fce947e92c377e3fff7663cbba369cbc82342"},"schema_version":"1.0","source":{"id":"1310.4623","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1310.4623","created_at":"2026-05-18T03:10:13Z"},{"alias_kind":"arxiv_version","alias_value":"1310.4623v1","created_at":"2026-05-18T03:10:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1310.4623","created_at":"2026-05-18T03:10:13Z"},{"alias_kind":"pith_short_12","alias_value":"65G7AWAG7CXP","created_at":"2026-05-18T12:27:34Z"},{"alias_kind":"pith_short_16","alias_value":"65G7AWAG7CXPIOMA","created_at":"2026-05-18T12:27:34Z"},{"alias_kind":"pith_short_8","alias_value":"65G7AWAG","created_at":"2026-05-18T12:27:34Z"}],"graph_snapshots":[{"event_id":"sha256:dc8e73bf2685cd39beb60e0319dbede4d4bfd4d215660aa76fb1324ea5eebbee","target":"graph","created_at":"2026-05-18T03:10:13Z","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 found that transport critical current density (Jc) of the Ba1-xKxFe2As2/Ag tapes is significantly enhanced by the combination process of cold flat rolling and uniaxial pressing. At 4.2 K, the Jc reaches a high value of 9.1x104 A/cm2 in 4 T, which is almost the practical level of 105 A/cm2. The Jc-H curve shows extremely small magnetic field dependence and keeps a high value of 6.9x104 A/cm2 in 10 T. These are the highest values reported so far for iron based superconducting wires. We also show our successful attempts of the fabrication of multi-filamentary tapes. A high Jc value of 5.3x104 ","authors_text":"Akiyoshi Matsumoto, Hiroaki Kumakura, Kazumasa Togano, Zhaoshun Gao","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2013-10-17T09:07:29Z","title":"Achievement of practical level critical current densities in PIT Ba1-xKxFe2As2/Ag tapes by conventional cold mechanical deformation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1310.4623","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":"sha256:05ef5a8eebe22309d16c39d657c19915218526129399b650dd79ac24c1b156b5","target":"record","created_at":"2026-05-18T03:10:13Z","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":"4f576c16bf47e00136a36329bef6478c8d5ab319e4311ae0a8532578fdded00f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2013-10-17T09:07:29Z","title_canon_sha256":"2f40ccf4e4a4a336b60201d9755fce947e92c377e3fff7663cbba369cbc82342"},"schema_version":"1.0","source":{"id":"1310.4623","kind":"arxiv","version":1}},"canonical_sha256":"f74df05806f8aef439809acc16278d7a1a60dd5157608d58d8441b26d603bdfc","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f74df05806f8aef439809acc16278d7a1a60dd5157608d58d8441b26d603bdfc","first_computed_at":"2026-05-18T03:10:13.543037Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:10:13.543037Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"qNHoNPS/7fJLabbqBtD6Q6eGhlO/v20f/bDofoSmTyF39jQR9w7ys68HZLZKAgE5/B85GbVAbZYZ8hmXlsNIAw==","signature_status":"signed_v1","signed_at":"2026-05-18T03:10:13.543744Z","signed_message":"canonical_sha256_bytes"},"source_id":"1310.4623","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:05ef5a8eebe22309d16c39d657c19915218526129399b650dd79ac24c1b156b5","sha256:dc8e73bf2685cd39beb60e0319dbede4d4bfd4d215660aa76fb1324ea5eebbee"],"state_sha256":"3950800da38218eaee6dc7a7019c48aef1f369144c3a0f3c98349b635e748af5"}