{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2018:DHIETMV326KOETZEX35Y4TELD5","short_pith_number":"pith:DHIETMV3","schema_version":"1.0","canonical_sha256":"19d049b2bbd794e24f24befb8e4c8b1f7fe8a1438b2712e2ade6d8f80c9556f9","source":{"kind":"arxiv","id":"1805.03392","version":2},"attestation_state":"computed","paper":{"title":"Effects of transition metals on physical properties of M2BC (M = V, Nb, Mo and Ta): a DFT calculation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"A. K. M. A. Islam, M. A. Ali, M. M. Hossain, M. M. Uddin, P. Barua, S. H. Naqib","submitted_at":"2018-05-09T07:18:30Z","abstract_excerpt":"The electronic band structures along with Fermi surface, anisotropy, Vickers hardness, analysis of Mulliken populations, optical and thermodynamic properties were studied for the first time. The optimized unit cell parameters are compared with available theoretical and experimental results and a reasonable agreement is recorded. The mechanical stability of these compounds is confirmed. All the compounds herein exhibit metallic conductivity where major contribution comes from d-orbital electrons. The hardness values of 10.71, 12.44, 8.52 and 16.80 GPa were recorded for M2BC (M = V, Nb, Mo and T"},"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":"1805.03392","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-05-09T07:18:30Z","cross_cats_sorted":[],"title_canon_sha256":"c8832ff7e0d95c811d3b441709a6ad450035308cf2bb4072494da9fd9fc9608e","abstract_canon_sha256":"ff151a23aa3590a6557abde6e9de4f3fcc1627696dbb0fd151fe30fdee1d852d"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:07:40.414014Z","signature_b64":"iq8dO9GQhf+YFeFBhTmePZRPkwsRpyHmg6MfiYjIiuGkkCp9kj5lBX3mvLL6g18hlWfj+AqfNEKyfw39V3qsDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"19d049b2bbd794e24f24befb8e4c8b1f7fe8a1438b2712e2ade6d8f80c9556f9","last_reissued_at":"2026-05-18T00:07:40.413367Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:07:40.413367Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Effects of transition metals on physical properties of M2BC (M = V, Nb, Mo and Ta): a DFT calculation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"A. K. M. A. Islam, M. A. Ali, M. M. Hossain, M. M. Uddin, P. Barua, S. H. Naqib","submitted_at":"2018-05-09T07:18:30Z","abstract_excerpt":"The electronic band structures along with Fermi surface, anisotropy, Vickers hardness, analysis of Mulliken populations, optical and thermodynamic properties were studied for the first time. The optimized unit cell parameters are compared with available theoretical and experimental results and a reasonable agreement is recorded. The mechanical stability of these compounds is confirmed. All the compounds herein exhibit metallic conductivity where major contribution comes from d-orbital electrons. The hardness values of 10.71, 12.44, 8.52 and 16.80 GPa were recorded for M2BC (M = V, Nb, Mo and T"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1805.03392","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":""},"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":"1805.03392","created_at":"2026-05-18T00:07:40.413464+00:00"},{"alias_kind":"arxiv_version","alias_value":"1805.03392v2","created_at":"2026-05-18T00:07:40.413464+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1805.03392","created_at":"2026-05-18T00:07:40.413464+00:00"},{"alias_kind":"pith_short_12","alias_value":"DHIETMV326KO","created_at":"2026-05-18T12:32:19.392346+00:00"},{"alias_kind":"pith_short_16","alias_value":"DHIETMV326KOETZE","created_at":"2026-05-18T12:32:19.392346+00:00"},{"alias_kind":"pith_short_8","alias_value":"DHIETMV3","created_at":"2026-05-18T12:32:19.392346+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/DHIETMV326KOETZEX35Y4TELD5","json":"https://pith.science/pith/DHIETMV326KOETZEX35Y4TELD5.json","graph_json":"https://pith.science/api/pith-number/DHIETMV326KOETZEX35Y4TELD5/graph.json","events_json":"https://pith.science/api/pith-number/DHIETMV326KOETZEX35Y4TELD5/events.json","paper":"https://pith.science/paper/DHIETMV3"},"agent_actions":{"view_html":"https://pith.science/pith/DHIETMV326KOETZEX35Y4TELD5","download_json":"https://pith.science/pith/DHIETMV326KOETZEX35Y4TELD5.json","view_paper":"https://pith.science/paper/DHIETMV3","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1805.03392&json=true","fetch_graph":"https://pith.science/api/pith-number/DHIETMV326KOETZEX35Y4TELD5/graph.json","fetch_events":"https://pith.science/api/pith-number/DHIETMV326KOETZEX35Y4TELD5/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/DHIETMV326KOETZEX35Y4TELD5/action/timestamp_anchor","attest_storage":"https://pith.science/pith/DHIETMV326KOETZEX35Y4TELD5/action/storage_attestation","attest_author":"https://pith.science/pith/DHIETMV326KOETZEX35Y4TELD5/action/author_attestation","sign_citation":"https://pith.science/pith/DHIETMV326KOETZEX35Y4TELD5/action/citation_signature","submit_replication":"https://pith.science/pith/DHIETMV326KOETZEX35Y4TELD5/action/replication_record"}},"created_at":"2026-05-18T00:07:40.413464+00:00","updated_at":"2026-05-18T00:07:40.413464+00:00"}