{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2021:2GZ3RRYMYLEQDTUT2O6P4KJHWW","short_pith_number":"pith:2GZ3RRYM","schema_version":"1.0","canonical_sha256":"d1b3b8c70cc2c901ce93d3bcfe2927b5a1462a4e8d4bd8f9365beb8c1fa67b3e","source":{"kind":"arxiv","id":"2107.04776","version":1},"attestation_state":"computed","paper":{"title":"Prediction of an unusual trigonal phase of superconducting LaH$_{\\bf 10}$ stable from 250 to 425 GPa pressure","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.supr-con","authors_text":"Alex Aperis, Ashok K. Verma, Fabian Schrodi, Peter M. Oppeneer, P. Modak","submitted_at":"2021-07-10T06:49:07Z","abstract_excerpt":"Based on evolutionary crystal structure searches in combination with ab initio calculations, we predict an unusual structural phase of the superconducting LaH$_{10}$ that is stable from about 250 GPa to 425 GPa pressure. This new phase belongs to a trigonal $R\\bar{3}m$ crystal lattice with an atypical cell angle, $\\alpha_{rhom}$ $\\sim$ 24.56$^{\\circ}$. We find that the new structure contains three units of LaH$_{10}$ in its primitive cell, unlike the previously known trigonal phase, where primitive cell contains only one LaH$_{10}$ unit. In this phase, a 32-H atoms cage encapsulates La atoms, "},"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":"2107.04776","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2021-07-10T06:49:07Z","cross_cats_sorted":[],"title_canon_sha256":"35a5dd3cc5dfac2398e3fb0bd6cc51b90fd5368b7fd8d77c102030397fa8f852","abstract_canon_sha256":"88ccf2e81965df70680a31ebe2fe923b35daff39f75617c9d411164aca20cea3"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:32:07.805987Z","signature_b64":"22U4swpwhCOSOGbOT5iXoCknhBz27XuOC3Jy3/HTa0jRNWUW/nMIX9tiWuaEiqBcXU6Dfqk2exbVDqLhimkECg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d1b3b8c70cc2c901ce93d3bcfe2927b5a1462a4e8d4bd8f9365beb8c1fa67b3e","last_reissued_at":"2026-07-05T03:32:07.805433Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:32:07.805433Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Prediction of an unusual trigonal phase of superconducting LaH$_{\\bf 10}$ stable from 250 to 425 GPa pressure","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.supr-con","authors_text":"Alex Aperis, Ashok K. Verma, Fabian Schrodi, Peter M. Oppeneer, P. Modak","submitted_at":"2021-07-10T06:49:07Z","abstract_excerpt":"Based on evolutionary crystal structure searches in combination with ab initio calculations, we predict an unusual structural phase of the superconducting LaH$_{10}$ that is stable from about 250 GPa to 425 GPa pressure. This new phase belongs to a trigonal $R\\bar{3}m$ crystal lattice with an atypical cell angle, $\\alpha_{rhom}$ $\\sim$ 24.56$^{\\circ}$. We find that the new structure contains three units of LaH$_{10}$ in its primitive cell, unlike the previously known trigonal phase, where primitive cell contains only one LaH$_{10}$ unit. In this phase, a 32-H atoms cage encapsulates La atoms, "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2107.04776","kind":"arxiv","version":1},"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/2107.04776/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":"2107.04776","created_at":"2026-07-05T03:32:07.805521+00:00"},{"alias_kind":"arxiv_version","alias_value":"2107.04776v1","created_at":"2026-07-05T03:32:07.805521+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2107.04776","created_at":"2026-07-05T03:32:07.805521+00:00"},{"alias_kind":"pith_short_12","alias_value":"2GZ3RRYMYLEQ","created_at":"2026-07-05T03:32:07.805521+00:00"},{"alias_kind":"pith_short_16","alias_value":"2GZ3RRYMYLEQDTUT","created_at":"2026-07-05T03:32:07.805521+00:00"},{"alias_kind":"pith_short_8","alias_value":"2GZ3RRYM","created_at":"2026-07-05T03:32:07.805521+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/2GZ3RRYMYLEQDTUT2O6P4KJHWW","json":"https://pith.science/pith/2GZ3RRYMYLEQDTUT2O6P4KJHWW.json","graph_json":"https://pith.science/api/pith-number/2GZ3RRYMYLEQDTUT2O6P4KJHWW/graph.json","events_json":"https://pith.science/api/pith-number/2GZ3RRYMYLEQDTUT2O6P4KJHWW/events.json","paper":"https://pith.science/paper/2GZ3RRYM"},"agent_actions":{"view_html":"https://pith.science/pith/2GZ3RRYMYLEQDTUT2O6P4KJHWW","download_json":"https://pith.science/pith/2GZ3RRYMYLEQDTUT2O6P4KJHWW.json","view_paper":"https://pith.science/paper/2GZ3RRYM","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2107.04776&json=true","fetch_graph":"https://pith.science/api/pith-number/2GZ3RRYMYLEQDTUT2O6P4KJHWW/graph.json","fetch_events":"https://pith.science/api/pith-number/2GZ3RRYMYLEQDTUT2O6P4KJHWW/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/2GZ3RRYMYLEQDTUT2O6P4KJHWW/action/timestamp_anchor","attest_storage":"https://pith.science/pith/2GZ3RRYMYLEQDTUT2O6P4KJHWW/action/storage_attestation","attest_author":"https://pith.science/pith/2GZ3RRYMYLEQDTUT2O6P4KJHWW/action/author_attestation","sign_citation":"https://pith.science/pith/2GZ3RRYMYLEQDTUT2O6P4KJHWW/action/citation_signature","submit_replication":"https://pith.science/pith/2GZ3RRYMYLEQDTUT2O6P4KJHWW/action/replication_record"}},"created_at":"2026-07-05T03:32:07.805521+00:00","updated_at":"2026-07-05T03:32:07.805521+00:00"}