{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2017:QYK4M2GSHBJJAIGBGH6MDVEE47","short_pith_number":"pith:QYK4M2GS","schema_version":"1.0","canonical_sha256":"8615c668d238529020c131fcc1d484e7c52aebdd9ace06d4ee20872becc8350b","source":{"kind":"arxiv","id":"1707.00335","version":1},"attestation_state":"computed","paper":{"title":"Dense superconducting phases of copper-bismuth at high pressure","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.supr-con","authors_text":"Chris Wolverton, Maximilian Amsler","submitted_at":"2017-07-02T18:49:51Z","abstract_excerpt":"Although copper and bismuth do not form any compounds at ambient conditions, two intermetallics, CuBi and Cu$_{11}$Bi$_7$, were recently synthesized at high pressures. Here we report on the discovery of additional copper-bismuth phases at elevated pressures with high-densities from ab initio calculations. In particular, a Cu$_2$Bi compound is found to be thermodynamically stable at pressures above 59 GPa, crystallizing in the cubic Laves structure. In strong contrast to Cu$_{11}$Bi$_7$ and CuBi, cubic Cu$_2$Bi does not exhibit any voids or channels. Since the bismuth lone pairs in cubic Cu$_2$"},"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":"1707.00335","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2017-07-02T18:49:51Z","cross_cats_sorted":[],"title_canon_sha256":"f02247bdf1c6bfbef264efa8a2df4f38da561adb812bc719be63858f89b81cd3","abstract_canon_sha256":"d13e6c764c1631fde359b36b2adc995aa431811dfefb8db34bc87fbd82d6d5ba"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:35:58.393109Z","signature_b64":"iHtHVR/QKphCUCdLUugHA0waxpzDfY46MUC8bsc7BdZEckK6filAhK2WGWCffMfE74IAPTKLvAiarWBtwyXYCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8615c668d238529020c131fcc1d484e7c52aebdd9ace06d4ee20872becc8350b","last_reissued_at":"2026-05-18T00:35:58.392607Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:35:58.392607Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Dense superconducting phases of copper-bismuth at high pressure","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.supr-con","authors_text":"Chris Wolverton, Maximilian Amsler","submitted_at":"2017-07-02T18:49:51Z","abstract_excerpt":"Although copper and bismuth do not form any compounds at ambient conditions, two intermetallics, CuBi and Cu$_{11}$Bi$_7$, were recently synthesized at high pressures. Here we report on the discovery of additional copper-bismuth phases at elevated pressures with high-densities from ab initio calculations. In particular, a Cu$_2$Bi compound is found to be thermodynamically stable at pressures above 59 GPa, crystallizing in the cubic Laves structure. In strong contrast to Cu$_{11}$Bi$_7$ and CuBi, cubic Cu$_2$Bi does not exhibit any voids or channels. Since the bismuth lone pairs in cubic Cu$_2$"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1707.00335","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":""},"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":"1707.00335","created_at":"2026-05-18T00:35:58.392699+00:00"},{"alias_kind":"arxiv_version","alias_value":"1707.00335v1","created_at":"2026-05-18T00:35:58.392699+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1707.00335","created_at":"2026-05-18T00:35:58.392699+00:00"},{"alias_kind":"pith_short_12","alias_value":"QYK4M2GSHBJJ","created_at":"2026-05-18T12:31:39.905425+00:00"},{"alias_kind":"pith_short_16","alias_value":"QYK4M2GSHBJJAIGB","created_at":"2026-05-18T12:31:39.905425+00:00"},{"alias_kind":"pith_short_8","alias_value":"QYK4M2GS","created_at":"2026-05-18T12:31:39.905425+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/QYK4M2GSHBJJAIGBGH6MDVEE47","json":"https://pith.science/pith/QYK4M2GSHBJJAIGBGH6MDVEE47.json","graph_json":"https://pith.science/api/pith-number/QYK4M2GSHBJJAIGBGH6MDVEE47/graph.json","events_json":"https://pith.science/api/pith-number/QYK4M2GSHBJJAIGBGH6MDVEE47/events.json","paper":"https://pith.science/paper/QYK4M2GS"},"agent_actions":{"view_html":"https://pith.science/pith/QYK4M2GSHBJJAIGBGH6MDVEE47","download_json":"https://pith.science/pith/QYK4M2GSHBJJAIGBGH6MDVEE47.json","view_paper":"https://pith.science/paper/QYK4M2GS","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1707.00335&json=true","fetch_graph":"https://pith.science/api/pith-number/QYK4M2GSHBJJAIGBGH6MDVEE47/graph.json","fetch_events":"https://pith.science/api/pith-number/QYK4M2GSHBJJAIGBGH6MDVEE47/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/QYK4M2GSHBJJAIGBGH6MDVEE47/action/timestamp_anchor","attest_storage":"https://pith.science/pith/QYK4M2GSHBJJAIGBGH6MDVEE47/action/storage_attestation","attest_author":"https://pith.science/pith/QYK4M2GSHBJJAIGBGH6MDVEE47/action/author_attestation","sign_citation":"https://pith.science/pith/QYK4M2GSHBJJAIGBGH6MDVEE47/action/citation_signature","submit_replication":"https://pith.science/pith/QYK4M2GSHBJJAIGBGH6MDVEE47/action/replication_record"}},"created_at":"2026-05-18T00:35:58.392699+00:00","updated_at":"2026-05-18T00:35:58.392699+00:00"}