{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:PFXH3XOM3DIMAWLD42GFDU7MOW","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":"84ba104f5eb3b785c909fff433acf66136fd011f834a5663981de1c6d18b0e0a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2012-07-25T07:20:32Z","title_canon_sha256":"19f48d232985874c90bcca1effdfb311b4d816e2cda23d66234c999859f74a48"},"schema_version":"1.0","source":{"id":"1207.5905","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1207.5905","created_at":"2026-05-18T03:42:11Z"},{"alias_kind":"arxiv_version","alias_value":"1207.5905v3","created_at":"2026-05-18T03:42:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1207.5905","created_at":"2026-05-18T03:42:11Z"},{"alias_kind":"pith_short_12","alias_value":"PFXH3XOM3DIM","created_at":"2026-05-18T12:27:18Z"},{"alias_kind":"pith_short_16","alias_value":"PFXH3XOM3DIMAWLD","created_at":"2026-05-18T12:27:18Z"},{"alias_kind":"pith_short_8","alias_value":"PFXH3XOM","created_at":"2026-05-18T12:27:18Z"}],"graph_snapshots":[{"event_id":"sha256:f842dd33daa4057b548ec7c84c89f7daad44df9a725d8d250d6c21cdb814e3ff","target":"graph","created_at":"2026-05-18T03:42:11Z","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 investigate bulk superconductivity in a high-quality single crystal of Bi$_2$Pd ($\\beta$-Bi$_2$Pd, space group; I4/mmm) at temperatures less than 5.4 K by exploring its electrical resistivity, magnetic susceptibility, and specific heat. The temperature dependence of the electrical resistivity shows convex-upward behaviors at temperatures greater than 40-50 K, which can be explained by a parallel-resistor model. In addition, we demonstrate that this material is a multiple-band/multiple-gap superconductor based on the temperature dependences of the specific heat and the upper critical field.","authors_text":"Atsutaka Maeda, Fuyuki Nabeshima, Ichiro Tsukada, Kosuke Miyatani, Ryusuke Kondo, Seiki Komiya, Taiki Yoshinaka, Yoshinori Imai","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2012-07-25T07:20:32Z","title":"Superconductivity at 5.4 K in $\\beta$-Bi$_2$Pd"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1207.5905","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":"sha256:4f3dcf05ccec3ea8155be8b95651170fa0d63bed362cd6d4199a52cb8c5b5834","target":"record","created_at":"2026-05-18T03:42:11Z","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":"84ba104f5eb3b785c909fff433acf66136fd011f834a5663981de1c6d18b0e0a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2012-07-25T07:20:32Z","title_canon_sha256":"19f48d232985874c90bcca1effdfb311b4d816e2cda23d66234c999859f74a48"},"schema_version":"1.0","source":{"id":"1207.5905","kind":"arxiv","version":3}},"canonical_sha256":"796e7dddccd8d0c05963e68c51d3ec759bc653ef5b114a397c445b646ff83d78","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"796e7dddccd8d0c05963e68c51d3ec759bc653ef5b114a397c445b646ff83d78","first_computed_at":"2026-05-18T03:42:11.102118Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:42:11.102118Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"T2Am9Rfkoxs64sqjZ04y1MBQmZdf4Mov3biTXMPC18GY3H3ksBqsPuilN0VZBofvsCcnjHML/muTaE6meZgYCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T03:42:11.102960Z","signed_message":"canonical_sha256_bytes"},"source_id":"1207.5905","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4f3dcf05ccec3ea8155be8b95651170fa0d63bed362cd6d4199a52cb8c5b5834","sha256:f842dd33daa4057b548ec7c84c89f7daad44df9a725d8d250d6c21cdb814e3ff"],"state_sha256":"2d7dab523f90dc5ecf2ed36e4c48745c5f3d8649cb489d4adc5ca5f099e39585"}