{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:2LQOJIENC5V2VP5RZZJBWQHDXZ","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":"a0dc2c965b4ba393c4316041bcf21364b818c63215e07ed831ade6064e53557c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2010-08-19T15:28:44Z","title_canon_sha256":"b850e4f6f6d722ab92c519f040a9f0af5e11620e77f2a0583e84f9c327fae736"},"schema_version":"1.0","source":{"id":"1008.3325","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1008.3325","created_at":"2026-05-18T04:38:39Z"},{"alias_kind":"arxiv_version","alias_value":"1008.3325v3","created_at":"2026-05-18T04:38:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1008.3325","created_at":"2026-05-18T04:38:39Z"},{"alias_kind":"pith_short_12","alias_value":"2LQOJIENC5V2","created_at":"2026-05-18T12:26:03Z"},{"alias_kind":"pith_short_16","alias_value":"2LQOJIENC5V2VP5R","created_at":"2026-05-18T12:26:03Z"},{"alias_kind":"pith_short_8","alias_value":"2LQOJIEN","created_at":"2026-05-18T12:26:03Z"}],"graph_snapshots":[{"event_id":"sha256:c2d8e943c47449a8b28f7c201a212cf8ad701ecbc61859ae3250796542c31470","target":"graph","created_at":"2026-05-18T04:38:39Z","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 fabricated superconducting MgB2 thin films on (001) MgO substrates. The samples were prepared by magnetron rf and dc co-sputtering on heated substrates. They were annealed ex-situ for one hour at temperatures between 450{\\deg}C and 750{\\deg}C. We will show that the substrate temperature during the sputtering process and the post annealing temperatures play a crucial role in forming MgB2 superconducting thin films. We achieved a critical onset temperature of 27.1K for a film thickness of 30nm. The crystal structures were measured by x-ray diffraction.","authors_text":"Andy Thomas, Markus Meinert, Patrick Thomas, Savio Fabretti","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2010-08-19T15:28:44Z","title":"Fabrication of superconducting MgB2 thin films by magnetron co-sputtering on (001) MgO substrates"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1008.3325","kind":"arxiv","version":3},"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:d0ba88c909f97749a4490ba249f75f6cbb74590321f5e270ba9045ebac20a1f8","target":"record","created_at":"2026-05-18T04:38:39Z","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":"a0dc2c965b4ba393c4316041bcf21364b818c63215e07ed831ade6064e53557c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2010-08-19T15:28:44Z","title_canon_sha256":"b850e4f6f6d722ab92c519f040a9f0af5e11620e77f2a0583e84f9c327fae736"},"schema_version":"1.0","source":{"id":"1008.3325","kind":"arxiv","version":3}},"canonical_sha256":"d2e0e4a08d176baabfb1ce521b40e3be7a9114a8059aac3f7ad16e9139e713e6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d2e0e4a08d176baabfb1ce521b40e3be7a9114a8059aac3f7ad16e9139e713e6","first_computed_at":"2026-05-18T04:38:39.484500Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:38:39.484500Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"uW7gmAX5dXfT/PKZ7+5piFbp8/UWbnpj71d2O6OB7SlXPDALvd1r5WQGPxUQKY5O0/ucPUrBNepbicM7fBUeAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T04:38:39.485121Z","signed_message":"canonical_sha256_bytes"},"source_id":"1008.3325","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d0ba88c909f97749a4490ba249f75f6cbb74590321f5e270ba9045ebac20a1f8","sha256:c2d8e943c47449a8b28f7c201a212cf8ad701ecbc61859ae3250796542c31470"],"state_sha256":"23c4ef6dc1b353626f4c00592fc600a9ef27dda3fb73700a47d72ce1a551e989"}