{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2019:6SENAXABULMND2MLBRO2NWOGI2","short_pith_number":"pith:6SENAXAB","schema_version":"1.0","canonical_sha256":"f488d05c01a2d8d1e98b0c5da6d9c646ab830b32179737e4c45bd7d2e5f1e779","source":{"kind":"arxiv","id":"1905.06909","version":1},"attestation_state":"computed","paper":{"title":"Crystal growth and characterization of the antiperovskite superconductor MgC1-xNi3-y","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.supr-con","authors_text":"Nikolai D. Zhigadlo","submitted_at":"2019-05-16T17:10:43Z","abstract_excerpt":"By varying the parameters controlling the growth of crystals, including the thermodynamic variables, such as temperature, pressure, and reagent composition and the kinetic factors, namely reaction time and cooling rate, we found the most appropriate conditions for the reproducible growth of the nonstoichiometric antiperovskite superconductors MgC1-xNi3-y. Bulk single crystals of MgC1-xNi3-y were grown by a self-flux method at 3 GPa and 1700 C using a mixture of Mg, C, and Ni powders in a molar ratio 1:1.25:3. The as-grown black colored crystals, mechanically extracted from solidified lump, exh"},"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":"1905.06909","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2019-05-16T17:10:43Z","cross_cats_sorted":[],"title_canon_sha256":"10b1afbc7c668ac1534e34b07c0b91adf83c52a365f962dd842bb73acdc8d5ef","abstract_canon_sha256":"539b260b018d46abb51eb7f36dfa3244c8c64d9878bbdb1bc10530f71c19e34f"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:42:18.951518Z","signature_b64":"QrrmLxw5QWfb0Sgdelh593uN5+2gZ67pev9kcNu0Ve7ak9RUAxaV+MwuzgVmht/aA3bDnFJHkX1Nbn8cMmceDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f488d05c01a2d8d1e98b0c5da6d9c646ab830b32179737e4c45bd7d2e5f1e779","last_reissued_at":"2026-05-17T23:42:18.951005Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:42:18.951005Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Crystal growth and characterization of the antiperovskite superconductor MgC1-xNi3-y","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.supr-con","authors_text":"Nikolai D. Zhigadlo","submitted_at":"2019-05-16T17:10:43Z","abstract_excerpt":"By varying the parameters controlling the growth of crystals, including the thermodynamic variables, such as temperature, pressure, and reagent composition and the kinetic factors, namely reaction time and cooling rate, we found the most appropriate conditions for the reproducible growth of the nonstoichiometric antiperovskite superconductors MgC1-xNi3-y. Bulk single crystals of MgC1-xNi3-y were grown by a self-flux method at 3 GPa and 1700 C using a mixture of Mg, C, and Ni powders in a molar ratio 1:1.25:3. The as-grown black colored crystals, mechanically extracted from solidified lump, exh"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1905.06909","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":"1905.06909","created_at":"2026-05-17T23:42:18.951079+00:00"},{"alias_kind":"arxiv_version","alias_value":"1905.06909v1","created_at":"2026-05-17T23:42:18.951079+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1905.06909","created_at":"2026-05-17T23:42:18.951079+00:00"},{"alias_kind":"pith_short_12","alias_value":"6SENAXABULMN","created_at":"2026-05-18T12:33:10.108867+00:00"},{"alias_kind":"pith_short_16","alias_value":"6SENAXABULMND2ML","created_at":"2026-05-18T12:33:10.108867+00:00"},{"alias_kind":"pith_short_8","alias_value":"6SENAXAB","created_at":"2026-05-18T12:33:10.108867+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/6SENAXABULMND2MLBRO2NWOGI2","json":"https://pith.science/pith/6SENAXABULMND2MLBRO2NWOGI2.json","graph_json":"https://pith.science/api/pith-number/6SENAXABULMND2MLBRO2NWOGI2/graph.json","events_json":"https://pith.science/api/pith-number/6SENAXABULMND2MLBRO2NWOGI2/events.json","paper":"https://pith.science/paper/6SENAXAB"},"agent_actions":{"view_html":"https://pith.science/pith/6SENAXABULMND2MLBRO2NWOGI2","download_json":"https://pith.science/pith/6SENAXABULMND2MLBRO2NWOGI2.json","view_paper":"https://pith.science/paper/6SENAXAB","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1905.06909&json=true","fetch_graph":"https://pith.science/api/pith-number/6SENAXABULMND2MLBRO2NWOGI2/graph.json","fetch_events":"https://pith.science/api/pith-number/6SENAXABULMND2MLBRO2NWOGI2/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/6SENAXABULMND2MLBRO2NWOGI2/action/timestamp_anchor","attest_storage":"https://pith.science/pith/6SENAXABULMND2MLBRO2NWOGI2/action/storage_attestation","attest_author":"https://pith.science/pith/6SENAXABULMND2MLBRO2NWOGI2/action/author_attestation","sign_citation":"https://pith.science/pith/6SENAXABULMND2MLBRO2NWOGI2/action/citation_signature","submit_replication":"https://pith.science/pith/6SENAXABULMND2MLBRO2NWOGI2/action/replication_record"}},"created_at":"2026-05-17T23:42:18.951079+00:00","updated_at":"2026-05-17T23:42:18.951079+00:00"}