{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:CESUFQDKDSDYMGRZUEYYBFUIJI","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":"e66cdab5b17296e75000ea77914242f96b5fc96e1e92fa424696fac1dae423ac","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2015-07-30T19:34:47Z","title_canon_sha256":"cf74295d7ccdd661b5f2fd0e270fb4e5c2961594690a77bf30f54b3b1cf279be"},"schema_version":"1.0","source":{"id":"1507.08639","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1507.08639","created_at":"2026-05-18T01:18:33Z"},{"alias_kind":"arxiv_version","alias_value":"1507.08639v2","created_at":"2026-05-18T01:18:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1507.08639","created_at":"2026-05-18T01:18:33Z"},{"alias_kind":"pith_short_12","alias_value":"CESUFQDKDSDY","created_at":"2026-05-18T12:29:14Z"},{"alias_kind":"pith_short_16","alias_value":"CESUFQDKDSDYMGRZ","created_at":"2026-05-18T12:29:14Z"},{"alias_kind":"pith_short_8","alias_value":"CESUFQDK","created_at":"2026-05-18T12:29:14Z"}],"graph_snapshots":[{"event_id":"sha256:46b9fdb77d3d9733125a8b38bea35c6787698a001fdf61a87ea3f78fba20587f","target":"graph","created_at":"2026-05-18T01:18:33Z","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":"Two-dimensional (2D) materials are not expected to be metals at low temperature due to electron localization. Consistent with this, pioneering studies on thin films reported only superconducting and insulating ground states, with a direct transition between the two as a function of disorder or magnetic field. However, more recent works have revealed the presence of an intermediate metallic state occupying a substantial region of the phase diagram whose nature is intensely debated. Here, we observe such a state in the disorder-free limit of a crystalline 2D superconductor, produced by mechanica","authors_text":"A. N. Pasupathy, A. W. Tsen, B. Hunt, C. R. Dean, J. Hone, P. Kim, R. J. Cava, S. Jia, Y. D. Kim, Z. J. Yuan","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2015-07-30T19:34:47Z","title":"Nature of the Quantum Metal in a Two-Dimensional Crystalline Superconductor"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1507.08639","kind":"arxiv","version":2},"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":"sha256:8c9b5baf6331ef35982d57ac42520d094a50197e1624fc30f2fa13f664dc724f","target":"record","created_at":"2026-05-18T01:18:33Z","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":"e66cdab5b17296e75000ea77914242f96b5fc96e1e92fa424696fac1dae423ac","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2015-07-30T19:34:47Z","title_canon_sha256":"cf74295d7ccdd661b5f2fd0e270fb4e5c2961594690a77bf30f54b3b1cf279be"},"schema_version":"1.0","source":{"id":"1507.08639","kind":"arxiv","version":2}},"canonical_sha256":"112542c06a1c87861a39a1318096884a17e0800a7e6bf83e9ba188536d8d3426","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"112542c06a1c87861a39a1318096884a17e0800a7e6bf83e9ba188536d8d3426","first_computed_at":"2026-05-18T01:18:33.484740Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:18:33.484740Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"QExmgGytY270THRECQWPgoYmr3M9m3m52KUKC+9qur+0x2c8yUqq8AriF9tRUghxOfFGwEZKBRP5QD6mjKVNBg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:18:33.485177Z","signed_message":"canonical_sha256_bytes"},"source_id":"1507.08639","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8c9b5baf6331ef35982d57ac42520d094a50197e1624fc30f2fa13f664dc724f","sha256:46b9fdb77d3d9733125a8b38bea35c6787698a001fdf61a87ea3f78fba20587f"],"state_sha256":"91b86383dbe54472f0fb8a1f82a0a98f48a05b2c3ffe47abc9ac600a765c606d"}