{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2001:6CFISO5BLBZD53HCKZMES4P37P","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":"0a6325f2cc7845be089f3a293fc26f44fefd6f07fdc40582e01bb44a5beeda7e","cross_cats_sorted":[],"license":"","primary_cat":"cond-mat.supr-con","submitted_at":"2001-03-27T20:48:36Z","title_canon_sha256":"efe3f646419a7b5d364a46bfc7d346e3a8afe89005a81597ad0222e446f1cb20"},"schema_version":"1.0","source":{"id":"cond-mat/0103571","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/0103571","created_at":"2026-05-18T01:09:08Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0103571v2","created_at":"2026-05-18T01:09:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0103571","created_at":"2026-05-18T01:09:08Z"},{"alias_kind":"pith_short_12","alias_value":"6CFISO5BLBZD","created_at":"2026-05-18T12:25:50Z"},{"alias_kind":"pith_short_16","alias_value":"6CFISO5BLBZD53HC","created_at":"2026-05-18T12:25:50Z"},{"alias_kind":"pith_short_8","alias_value":"6CFISO5B","created_at":"2026-05-18T12:25:50Z"}],"graph_snapshots":[{"event_id":"sha256:5897ddf021a1c54c262debfc539570a333480e4e41a1d934c6f9311fd61191c8","target":"graph","created_at":"2026-05-18T01:09:08Z","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":"Magnetic properties of TaB$_{2}$ were studied by means of DC and AC susceptibility measurements. It has been found that the compound becomes superconducting at T$_{c}$ = 9.5 K. From upper critical field measurements the superconducting parameters have been evaluated, which indicated that TaB$_{2}$ is a hard type-II superconductor. Possible reasons why superconductivity has not been discovered in previous studies are briefly discussed.","authors_text":"A. J. Zaleski, D. Kaczorowski, J. Klamut, O. J. \\.Zoga{\\l}","cross_cats":[],"headline":"","license":"","primary_cat":"cond-mat.supr-con","submitted_at":"2001-03-27T20:48:36Z","title":"Incipient superconductivity in TaB$_{2}$"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0103571","kind":"arxiv","version":2},"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":"sha256:44fec1f283878455e36e49c9334d1c070d5ac965464859fa3fc398a182c2d2c6","target":"record","created_at":"2026-05-18T01:09:08Z","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":"0a6325f2cc7845be089f3a293fc26f44fefd6f07fdc40582e01bb44a5beeda7e","cross_cats_sorted":[],"license":"","primary_cat":"cond-mat.supr-con","submitted_at":"2001-03-27T20:48:36Z","title_canon_sha256":"efe3f646419a7b5d364a46bfc7d346e3a8afe89005a81597ad0222e446f1cb20"},"schema_version":"1.0","source":{"id":"cond-mat/0103571","kind":"arxiv","version":2}},"canonical_sha256":"f08a893ba158723eece256584971fbfbe4ab8298692fffb24d079ca9a6a428ee","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f08a893ba158723eece256584971fbfbe4ab8298692fffb24d079ca9a6a428ee","first_computed_at":"2026-05-18T01:09:08.672166Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:09:08.672166Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Ze7m8YZ5qkyBfUgWhb//VEGPc8zc8McpqcIzMqj5IF/a1uy2PX6BGkJaA4qjb2IveevaBJdjRTSDXVHq/5PWDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:09:08.672641Z","signed_message":"canonical_sha256_bytes"},"source_id":"cond-mat/0103571","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:44fec1f283878455e36e49c9334d1c070d5ac965464859fa3fc398a182c2d2c6","sha256:5897ddf021a1c54c262debfc539570a333480e4e41a1d934c6f9311fd61191c8"],"state_sha256":"46cd0bc29a0c1a245f274ce3ea6d657afb76964079e55103b3a0bc9ea59618cc"}