{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2016:TYMZI56PHXC7STTVBGMIDEYQH3","short_pith_number":"pith:TYMZI56P","schema_version":"1.0","canonical_sha256":"9e199477cf3dc5f94e7509988193103efba2b543ee474b4721175f83802645c4","source":{"kind":"arxiv","id":"1603.07530","version":1},"attestation_state":"computed","paper":{"title":"Ab initio Investigation of Vibrational, Thermodynamic, and Optical properties of Sc2AlC MAX compound","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. R. Khatun, M. T. Nasir, S. H. Naqib","submitted_at":"2016-03-24T11:25:41Z","abstract_excerpt":"The structural, vibrational, thermodynamical and optical properties of technologically important, weakly coupled MAX compound, Sc2AlC are calculated using density functional theory (DFT). The structural properties of Sc2AlC are compared with results reported earlier. The vibrational, thermodynamical, and optical properties are theoretically estimated for the first time. The phonon dispersion curve has been calculated and the dynamical stability of this compound has been investigated. The optical and acoustic modes are observed clearly. We have calculated the Helmholtz free energy (F), internal"},"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":"1603.07530","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-03-24T11:25:41Z","cross_cats_sorted":[],"title_canon_sha256":"64cd950aa8f380f1fd2201e25f9723a66febc27b85c8b7171b3c19e67b805fe5","abstract_canon_sha256":"74547b251389a09cd04534c7a494d453528fe2d111c89dd01b6baefd93f955c8"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:02:44.836839Z","signature_b64":"2rWaCP/fZ4i2ONFFCTDAHo1BGw/GuO08Nl+1qw1kZG3ImDYnaP7LZKwinf9sa7ZaIrJhNjQdvJCcI3+YQ/NxDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9e199477cf3dc5f94e7509988193103efba2b543ee474b4721175f83802645c4","last_reissued_at":"2026-05-18T01:02:44.836392Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:02:44.836392Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Ab initio Investigation of Vibrational, Thermodynamic, and Optical properties of Sc2AlC MAX compound","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. R. Khatun, M. T. Nasir, S. H. Naqib","submitted_at":"2016-03-24T11:25:41Z","abstract_excerpt":"The structural, vibrational, thermodynamical and optical properties of technologically important, weakly coupled MAX compound, Sc2AlC are calculated using density functional theory (DFT). The structural properties of Sc2AlC are compared with results reported earlier. The vibrational, thermodynamical, and optical properties are theoretically estimated for the first time. The phonon dispersion curve has been calculated and the dynamical stability of this compound has been investigated. The optical and acoustic modes are observed clearly. We have calculated the Helmholtz free energy (F), internal"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1603.07530","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":"1603.07530","created_at":"2026-05-18T01:02:44.836461+00:00"},{"alias_kind":"arxiv_version","alias_value":"1603.07530v1","created_at":"2026-05-18T01:02:44.836461+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1603.07530","created_at":"2026-05-18T01:02:44.836461+00:00"},{"alias_kind":"pith_short_12","alias_value":"TYMZI56PHXC7","created_at":"2026-05-18T12:30:46.583412+00:00"},{"alias_kind":"pith_short_16","alias_value":"TYMZI56PHXC7STTV","created_at":"2026-05-18T12:30:46.583412+00:00"},{"alias_kind":"pith_short_8","alias_value":"TYMZI56P","created_at":"2026-05-18T12:30:46.583412+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/TYMZI56PHXC7STTVBGMIDEYQH3","json":"https://pith.science/pith/TYMZI56PHXC7STTVBGMIDEYQH3.json","graph_json":"https://pith.science/api/pith-number/TYMZI56PHXC7STTVBGMIDEYQH3/graph.json","events_json":"https://pith.science/api/pith-number/TYMZI56PHXC7STTVBGMIDEYQH3/events.json","paper":"https://pith.science/paper/TYMZI56P"},"agent_actions":{"view_html":"https://pith.science/pith/TYMZI56PHXC7STTVBGMIDEYQH3","download_json":"https://pith.science/pith/TYMZI56PHXC7STTVBGMIDEYQH3.json","view_paper":"https://pith.science/paper/TYMZI56P","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1603.07530&json=true","fetch_graph":"https://pith.science/api/pith-number/TYMZI56PHXC7STTVBGMIDEYQH3/graph.json","fetch_events":"https://pith.science/api/pith-number/TYMZI56PHXC7STTVBGMIDEYQH3/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/TYMZI56PHXC7STTVBGMIDEYQH3/action/timestamp_anchor","attest_storage":"https://pith.science/pith/TYMZI56PHXC7STTVBGMIDEYQH3/action/storage_attestation","attest_author":"https://pith.science/pith/TYMZI56PHXC7STTVBGMIDEYQH3/action/author_attestation","sign_citation":"https://pith.science/pith/TYMZI56PHXC7STTVBGMIDEYQH3/action/citation_signature","submit_replication":"https://pith.science/pith/TYMZI56PHXC7STTVBGMIDEYQH3/action/replication_record"}},"created_at":"2026-05-18T01:02:44.836461+00:00","updated_at":"2026-05-18T01:02:44.836461+00:00"}