{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:C3IA6HR7ZK4N4UBINFNDKOFDTA","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":"b491266deaee105e9fb3b73805dc31366283f4ba3462dcb8c95ccf1959b469e3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2011-06-13T08:02:35Z","title_canon_sha256":"f4eaef7ae42da7b6b490bdeacf9e671e1074b26257311b9321b2570a662845d5"},"schema_version":"1.0","source":{"id":"1106.2397","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1106.2397","created_at":"2026-05-18T02:01:39Z"},{"alias_kind":"arxiv_version","alias_value":"1106.2397v1","created_at":"2026-05-18T02:01:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1106.2397","created_at":"2026-05-18T02:01:39Z"},{"alias_kind":"pith_short_12","alias_value":"C3IA6HR7ZK4N","created_at":"2026-05-18T12:26:24Z"},{"alias_kind":"pith_short_16","alias_value":"C3IA6HR7ZK4N4UBI","created_at":"2026-05-18T12:26:24Z"},{"alias_kind":"pith_short_8","alias_value":"C3IA6HR7","created_at":"2026-05-18T12:26:24Z"}],"graph_snapshots":[{"event_id":"sha256:2529f2f20cf58420872311e81f1c592ed5b06fd5ebc33cd71677025d52d2d50e","target":"graph","created_at":"2026-05-18T02:01:39Z","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 have performed low-temperature specific-heat measurements in magnetic fields for a single crystal UBe13. It has been observed that our sample exhibits a superconducting transition at an intermediate temperature between previously reported values for two variant samples called H type and L type. The specific heat C(T) of our sample shows a T^3 behavior in the temperature range below 0.7 Tc, which is similar to the behavior of the H-type sample, suggesting the existence of point nodes in the superconducting gap function. We have obtained the upper-critical-field curves Hc2 for the [001], [110","authors_text":"Hiroshi Amitsuka, Hiroyuki Hidaka, Kenichi Tenya, Takumi Wakabayashi, Tatsuya Yanagisawa, Yoichi Ikeda, Yoshinori Haga, Yusei Shimizu","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2011-06-13T08:02:35Z","title":"Maki Parameter and Upper critical Field of the Heavy-Fermion Superconductor UBe13"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1106.2397","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":"sha256:9682ab12ee041acd7e82095e48fadf02e1f8886d6bdfa7df9a787fda7f1454ff","target":"record","created_at":"2026-05-18T02:01:39Z","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":"b491266deaee105e9fb3b73805dc31366283f4ba3462dcb8c95ccf1959b469e3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2011-06-13T08:02:35Z","title_canon_sha256":"f4eaef7ae42da7b6b490bdeacf9e671e1074b26257311b9321b2570a662845d5"},"schema_version":"1.0","source":{"id":"1106.2397","kind":"arxiv","version":1}},"canonical_sha256":"16d00f1e3fcab8de5028695a3538a3983d63ee807b69188dc15947eff8cb5c48","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"16d00f1e3fcab8de5028695a3538a3983d63ee807b69188dc15947eff8cb5c48","first_computed_at":"2026-05-18T02:01:39.468767Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:01:39.468767Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"4cf9HvHFa4qUcjGGnuRluSlQyzteUOrjBbz5ElwxUdC8eX9mmDlZ976p6TjknQhhjnDPnuGKJ05KEe2itbWIBA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:01:39.469249Z","signed_message":"canonical_sha256_bytes"},"source_id":"1106.2397","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9682ab12ee041acd7e82095e48fadf02e1f8886d6bdfa7df9a787fda7f1454ff","sha256:2529f2f20cf58420872311e81f1c592ed5b06fd5ebc33cd71677025d52d2d50e"],"state_sha256":"3a3ac944c8edf15a33a588d794afe5df497c5dc65eb3aaf9796e54704137f25e"}