{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:PVEGPKNDC36FIJRMUMA5K3TDBW","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":"3d95750c3b46b4834974a38b7a1afabea8615f4b57513715fb066f3e98025b82","cross_cats_sorted":["cond-mat.mtrl-sci","cond-mat.str-el"],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2026-05-20T18:42:42Z","title_canon_sha256":"e047477ea7a4f4fc84a1aba146c54d6abbe6ed23885327892dfd068cb6ffbdd2"},"schema_version":"1.0","source":{"id":"2605.21631","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.21631","created_at":"2026-05-22T01:03:26Z"},{"alias_kind":"arxiv_version","alias_value":"2605.21631v1","created_at":"2026-05-22T01:03:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.21631","created_at":"2026-05-22T01:03:26Z"},{"alias_kind":"pith_short_12","alias_value":"PVEGPKNDC36F","created_at":"2026-05-22T01:03:26Z"},{"alias_kind":"pith_short_16","alias_value":"PVEGPKNDC36FIJRM","created_at":"2026-05-22T01:03:26Z"},{"alias_kind":"pith_short_8","alias_value":"PVEGPKND","created_at":"2026-05-22T01:03:26Z"}],"graph_snapshots":[{"event_id":"sha256:a2e9c9bc1b842e0d6d4e493306d93ddf2648190c0810d96a4cd50569cca52ed6","target":"graph","created_at":"2026-05-22T01:03:26Z","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/2605.21631/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Tunneling spectroscopy and its evolution are crucial for elucidating the intricate electronic structure and emergent phenomena in quantum materials.Nevertheless, high-quality measurements -- specifically those tracking evolution across temperature and external fields -- remain a formidable challenge. We have fabricated a high-quality $\\mathrm{TaO}_x$-based planar tunneling junction by using magnetron sputtering for van der Waals (vdW) superconductors. Using the vdW superconductor $\\mathrm{Bi}_2\\mathrm{Sr}_2\\mathrm{CaCu}_2\\mathrm{O}_{8+\\delta}$ (Bi2212) as a benchmark, this platform yields high","authors_text":"Chenglong Li, Jun Cheng, Meining Zhang, Peng Cai, Shang Wang, Shiji Ding, Yixuan Niu, Zhongxin Guo","cross_cats":["cond-mat.mtrl-sci","cond-mat.str-el"],"headline":"","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2026-05-20T18:42:42Z","title":"Tunneling spectra of $\\mathrm{TaO}_x$ junctions for van der Waals superconductors"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.21631","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":"sha256:23058df3659c993d4f53c64c8728f4a4d57f24cd50c4a6681e627aafe3dbe127","target":"record","created_at":"2026-05-22T01:03:26Z","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":"3d95750c3b46b4834974a38b7a1afabea8615f4b57513715fb066f3e98025b82","cross_cats_sorted":["cond-mat.mtrl-sci","cond-mat.str-el"],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2026-05-20T18:42:42Z","title_canon_sha256":"e047477ea7a4f4fc84a1aba146c54d6abbe6ed23885327892dfd068cb6ffbdd2"},"schema_version":"1.0","source":{"id":"2605.21631","kind":"arxiv","version":1}},"canonical_sha256":"7d4867a9a316fc54262ca301d56e630dba0e8976cc5781fe4eedf78658030880","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7d4867a9a316fc54262ca301d56e630dba0e8976cc5781fe4eedf78658030880","first_computed_at":"2026-05-22T01:03:26.215565Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-22T01:03:26.215565Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"dtOd+SPenVZKoTIHjn5LB9g0QCfzg6NIWAl6NO5VYsaPs4p7ofilkwZjCbvtdvKnqzOAbBzq4uALQwDeB0lNDw==","signature_status":"signed_v1","signed_at":"2026-05-22T01:03:26.216055Z","signed_message":"canonical_sha256_bytes"},"source_id":"2605.21631","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:23058df3659c993d4f53c64c8728f4a4d57f24cd50c4a6681e627aafe3dbe127","sha256:a2e9c9bc1b842e0d6d4e493306d93ddf2648190c0810d96a4cd50569cca52ed6"],"state_sha256":"fdeecfc43e37f9b7cd77f9c9971255dbe7a3781be390fc9df0e786606bbc642c"}