{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2006:LHCQIMCVZY4L5KJALZZ4Q53UPK","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":"f9789e509c7575bb964effb2083303f6e45646c7d6273151e9633a4f6705a558","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"","primary_cat":"cond-mat.supr-con","submitted_at":"2006-02-09T11:57:16Z","title_canon_sha256":"ff97c055e055c666161190303c2cc6943cebc231155f0aed435b765709e43250"},"schema_version":"1.0","source":{"id":"cond-mat/0602234","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/0602234","created_at":"2026-07-04T17:00:05Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0602234v1","created_at":"2026-07-04T17:00:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0602234","created_at":"2026-07-04T17:00:05Z"},{"alias_kind":"pith_short_12","alias_value":"LHCQIMCVZY4L","created_at":"2026-07-04T17:00:05Z"},{"alias_kind":"pith_short_16","alias_value":"LHCQIMCVZY4L5KJA","created_at":"2026-07-04T17:00:05Z"},{"alias_kind":"pith_short_8","alias_value":"LHCQIMCV","created_at":"2026-07-04T17:00:05Z"}],"graph_snapshots":[{"event_id":"sha256:b003e80495263909e0bb0310bcc959b1a805ea8b7a32ca517a2fd53447942f74","target":"graph","created_at":"2026-07-04T17:00:05Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/cond-mat/0602234/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"0.5 to 5.0 wt.% Dy2O3 was in-situ reacted with Mg + B to form pinned MgB2. While Tc remained largely unchanged, Jc was strongly enhanced. The best sample (only 0.5 wt.% Dy2O3) had a Jc of 6.5 x 10^5 A/cm^2 at 6K, 1T and 3.5 x 10^5 A/cm^2 at 20K, 1T, around a factor of 4 higher compared to the pure sample, and equivalent to hot-pressed or nano-Si added MgB2 at below 1T. Even distributions of nano-scale precipitates of DyB4 and MgO were observed within the grains. The room temperature resistivity decreased with Dy2O3 indicative of improved grain connectivity.","authors_text":"J. L. MacManus-Driscoll, M. Wei, S. K. Chen","cross_cats":["cond-mat.mtrl-sci"],"headline":"","license":"","primary_cat":"cond-mat.supr-con","submitted_at":"2006-02-09T11:57:16Z","title":"Strong Pinning Enhancement in MgB2 Using Very Small Dy2O3 Additions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0602234","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:fe9afe5f8fadc0f0a3c7a4a726762f36d002d15de1bc784d2b412085c7307818","target":"record","created_at":"2026-07-04T17:00:05Z","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":"f9789e509c7575bb964effb2083303f6e45646c7d6273151e9633a4f6705a558","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"","primary_cat":"cond-mat.supr-con","submitted_at":"2006-02-09T11:57:16Z","title_canon_sha256":"ff97c055e055c666161190303c2cc6943cebc231155f0aed435b765709e43250"},"schema_version":"1.0","source":{"id":"cond-mat/0602234","kind":"arxiv","version":1}},"canonical_sha256":"59c5043055ce38bea9205e73c877747a99ef77da391ad6fa48ce23a53aeca837","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"59c5043055ce38bea9205e73c877747a99ef77da391ad6fa48ce23a53aeca837","first_computed_at":"2026-07-04T17:00:05.168148Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T17:00:05.168148Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"1W5DvbJ9koEwBpRIE92tbrdLZr6yRPAApCq6qQbMZ86hJAWzVp1sZ6uXCcdnZaT4hfvYz8j9i7msr2dJzK5vDA==","signature_status":"signed_v1","signed_at":"2026-07-04T17:00:05.168490Z","signed_message":"canonical_sha256_bytes"},"source_id":"cond-mat/0602234","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:fe9afe5f8fadc0f0a3c7a4a726762f36d002d15de1bc784d2b412085c7307818","sha256:b003e80495263909e0bb0310bcc959b1a805ea8b7a32ca517a2fd53447942f74"],"state_sha256":"07804f4863c1a2f9dbcd549709b34211f43ee7ac878f579186771b9ed8cea04a"}