{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2023:DFWCYO2KRFMWM2YVZ5AGBSL5MX","short_pith_number":"pith:DFWCYO2K","schema_version":"1.0","canonical_sha256":"196c2c3b4a8959666b15cf4060c97d65c577471d1936230f306f2d8a01b5bda0","source":{"kind":"arxiv","id":"2308.15031","version":2},"attestation_state":"computed","paper":{"title":"Ternary superconducting hydrides in the La-Mg-H system","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.supr-con","authors_text":"Artem R. Oganov, Dmitrii Semenok, Grigoriy Shutov, Ivan A. Kruglov","submitted_at":"2023-08-29T05:29:24Z","abstract_excerpt":"Ternary or more complex hydrogen-rich hydrides are the main hope of reaching room-temperature superconductivity at high pressures. Their chemical space is vast and its exploration is challenging. Here we report the investigation of the La-Mg-H ternary system using the evolutionary algorithm USPEX at pressures on the range 150-300 GPa. Several ternary superconducting hydrides were found, including thermodynamically stable $P6/mmm$-LaMg$_{3}$H$_{28}$ with $T_{\\mathrm{C}}=164$ K at 200 GPa, $P/2m$-LaMgH$_8$, $C2/m$-La$_2$MgH$_{12}$ and $P2/m$-La$_3$MgH$_{16}$. In addition, novel binary hydrides w"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"2308.15031","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2023-08-29T05:29:24Z","cross_cats_sorted":[],"title_canon_sha256":"d066142fa18d614426f356a1873eaadb34979658cf746c98bcc5fca5de9c8979","abstract_canon_sha256":"efd303ddb6669b7c8b1f3d30d2bded13cea08d041c183d9b36a8a8ae6dc98676"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T07:23:05.000596Z","signature_b64":"iqv6kBrccBkvG6iUzK3UtgMe26tjSxJmaZWlqD77Y/C9nlW/RjuLHvxCnCCiVWwe35ufRt7YPetJm3puqNj6AA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"196c2c3b4a8959666b15cf4060c97d65c577471d1936230f306f2d8a01b5bda0","last_reissued_at":"2026-07-05T07:23:05.000125Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T07:23:05.000125Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Ternary superconducting hydrides in the La-Mg-H system","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.supr-con","authors_text":"Artem R. Oganov, Dmitrii Semenok, Grigoriy Shutov, Ivan A. Kruglov","submitted_at":"2023-08-29T05:29:24Z","abstract_excerpt":"Ternary or more complex hydrogen-rich hydrides are the main hope of reaching room-temperature superconductivity at high pressures. Their chemical space is vast and its exploration is challenging. Here we report the investigation of the La-Mg-H ternary system using the evolutionary algorithm USPEX at pressures on the range 150-300 GPa. Several ternary superconducting hydrides were found, including thermodynamically stable $P6/mmm$-LaMg$_{3}$H$_{28}$ with $T_{\\mathrm{C}}=164$ K at 200 GPa, $P/2m$-LaMgH$_8$, $C2/m$-La$_2$MgH$_{12}$ and $P2/m$-La$_3$MgH$_{16}$. In addition, novel binary hydrides w"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2308.15031","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2308.15031/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"aliases":[{"alias_kind":"arxiv","alias_value":"2308.15031","created_at":"2026-07-05T07:23:05.000186+00:00"},{"alias_kind":"arxiv_version","alias_value":"2308.15031v2","created_at":"2026-07-05T07:23:05.000186+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2308.15031","created_at":"2026-07-05T07:23:05.000186+00:00"},{"alias_kind":"pith_short_12","alias_value":"DFWCYO2KRFMW","created_at":"2026-07-05T07:23:05.000186+00:00"},{"alias_kind":"pith_short_16","alias_value":"DFWCYO2KRFMWM2YV","created_at":"2026-07-05T07:23:05.000186+00:00"},{"alias_kind":"pith_short_8","alias_value":"DFWCYO2K","created_at":"2026-07-05T07:23:05.000186+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/DFWCYO2KRFMWM2YVZ5AGBSL5MX","json":"https://pith.science/pith/DFWCYO2KRFMWM2YVZ5AGBSL5MX.json","graph_json":"https://pith.science/api/pith-number/DFWCYO2KRFMWM2YVZ5AGBSL5MX/graph.json","events_json":"https://pith.science/api/pith-number/DFWCYO2KRFMWM2YVZ5AGBSL5MX/events.json","paper":"https://pith.science/paper/DFWCYO2K"},"agent_actions":{"view_html":"https://pith.science/pith/DFWCYO2KRFMWM2YVZ5AGBSL5MX","download_json":"https://pith.science/pith/DFWCYO2KRFMWM2YVZ5AGBSL5MX.json","view_paper":"https://pith.science/paper/DFWCYO2K","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2308.15031&json=true","fetch_graph":"https://pith.science/api/pith-number/DFWCYO2KRFMWM2YVZ5AGBSL5MX/graph.json","fetch_events":"https://pith.science/api/pith-number/DFWCYO2KRFMWM2YVZ5AGBSL5MX/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/DFWCYO2KRFMWM2YVZ5AGBSL5MX/action/timestamp_anchor","attest_storage":"https://pith.science/pith/DFWCYO2KRFMWM2YVZ5AGBSL5MX/action/storage_attestation","attest_author":"https://pith.science/pith/DFWCYO2KRFMWM2YVZ5AGBSL5MX/action/author_attestation","sign_citation":"https://pith.science/pith/DFWCYO2KRFMWM2YVZ5AGBSL5MX/action/citation_signature","submit_replication":"https://pith.science/pith/DFWCYO2KRFMWM2YVZ5AGBSL5MX/action/replication_record"}},"created_at":"2026-07-05T07:23:05.000186+00:00","updated_at":"2026-07-05T07:23:05.000186+00:00"}