{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:SCOK456MCTIZE7W736STYVR3CX","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":"620dca0b85276c1dae8e8005429fc2356c12d56ea427e7821461b44842c19723","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2019-02-11T11:16:05Z","title_canon_sha256":"031abd92e35c8e303198160515280bd9e11836d19bd602176e91555f3190603a"},"schema_version":"1.0","source":{"id":"1902.03818","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1902.03818","created_at":"2026-07-04T23:58:46Z"},{"alias_kind":"arxiv_version","alias_value":"1902.03818v1","created_at":"2026-07-04T23:58:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1902.03818","created_at":"2026-07-04T23:58:46Z"},{"alias_kind":"pith_short_12","alias_value":"SCOK456MCTIZ","created_at":"2026-07-04T23:58:46Z"},{"alias_kind":"pith_short_16","alias_value":"SCOK456MCTIZE7W7","created_at":"2026-07-04T23:58:46Z"},{"alias_kind":"pith_short_8","alias_value":"SCOK456M","created_at":"2026-07-04T23:58:46Z"}],"graph_snapshots":[{"event_id":"sha256:6e6e1f824f9beb0d2e849125f53acb3a2343c22312fc763ebd9fcff0a20564f4","target":"graph","created_at":"2026-07-04T23:58:46Z","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/1902.03818/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Hydrogen-based compounds under ultra-high pressure, such as the polyhydrides H$_3$S and LaH$_{10}$, superconduct through the conventional electron-phonon coupling mechanism to attain the record critical temperatures known to date. We demonstrate here that the intrinsic advantages of hydrogen for phonon-mediated superconductivity can be exploited in a completely different system, namely two-dimensional (2D) materials. We find that hydrogen adatoms can strongly enhance superconductivity in 2D materials due to flatband states originating from atomic-like hydrogen orbitals, with a resulting high d","authors_text":"Alex Aperis, Jonas Bekaert, Mikhail Petrov, Milorad V. Milosevic, Peter M. Oppeneer","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2019-02-11T11:16:05Z","title":"Hydrogen-induced high-temperature superconductivity in two-dimensional materials: Example of hydrogenated monolayer MgB$_2$"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1902.03818","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":"sha256:4fb9daff319cbb1a79c902aca01aa8bcf3615891e1d7792065dcb73deb848fa4","target":"record","created_at":"2026-07-04T23:58:46Z","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":"620dca0b85276c1dae8e8005429fc2356c12d56ea427e7821461b44842c19723","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2019-02-11T11:16:05Z","title_canon_sha256":"031abd92e35c8e303198160515280bd9e11836d19bd602176e91555f3190603a"},"schema_version":"1.0","source":{"id":"1902.03818","kind":"arxiv","version":1}},"canonical_sha256":"909cae77cc14d1927edfdfa53c563b15e291996520485c581255a27807f2ae2d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"909cae77cc14d1927edfdfa53c563b15e291996520485c581255a27807f2ae2d","first_computed_at":"2026-07-04T23:58:46.688126Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T23:58:46.688126Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Mrs0EIdbouBR5UNUU3HAi6GLY6CRvkWmjkQknOEnbpiV0WkwvcLwe12y4B/s/y57miGJtS2HItP+bxSuekJDCQ==","signature_status":"signed_v1","signed_at":"2026-07-04T23:58:46.688574Z","signed_message":"canonical_sha256_bytes"},"source_id":"1902.03818","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4fb9daff319cbb1a79c902aca01aa8bcf3615891e1d7792065dcb73deb848fa4","sha256:6e6e1f824f9beb0d2e849125f53acb3a2343c22312fc763ebd9fcff0a20564f4"],"state_sha256":"000f091442fb93192fadc287a9d5e1d1e0592830bdf73175bbcdb53f42d3c4df"}