{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2011:ADBRXBEO6NEECZ24KPKBPNG3CM","short_pith_number":"pith:ADBRXBEO","schema_version":"1.0","canonical_sha256":"00c31b848ef34841675c53d417b4db1306cf64ab3c5268578fd0598e3bf825eb","source":{"kind":"arxiv","id":"1102.0187","version":1},"attestation_state":"computed","paper":{"title":"Ab initio study of the modification of elastic properties of alpha-iron by hydrostatic strain and by hydrogen interstitials","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"D. Psiachos, R. Drautz, T. Hammerschmidt","submitted_at":"2011-02-01T15:42:16Z","abstract_excerpt":"The effect of hydrostatic strain and of interstitial hydrogen on the elastic properties of $\\alpha$-iron is investigated using \\textit{ab initio} density-functional theory calculations. We find that the cubic elastic constants and the polycrystalline elastic moduli to a good approximation decrease linearly with increasing hydrogen concentration. This net strength reduction can be partitioned into a strengthening electronic effect which is overcome by a softening volumetric effect. The calculated hydrogen-dependent elastic constants are used to determine the polycrystalline elastic moduli and a"},"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":"1102.0187","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2011-02-01T15:42:16Z","cross_cats_sorted":[],"title_canon_sha256":"bfc672b2d83e409d4372a05306cf0969670c144e1000832fa788a52f30988a02","abstract_canon_sha256":"0e509398d4f5bf4fd042121d44dd31e9124a85a9b1a22736f1f189d08f69548c"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:54:54.534291Z","signature_b64":"KcjpZc9lNDjtytzkMUGtj97LFhUi/+bSjZqMHNjty+LFXfdwkCadXlbKjnQAJXLRmHFblRdWUp6r/a20e8xwAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"00c31b848ef34841675c53d417b4db1306cf64ab3c5268578fd0598e3bf825eb","last_reissued_at":"2026-05-18T02:54:54.533601Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:54:54.533601Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Ab initio study of the modification of elastic properties of alpha-iron by hydrostatic strain and by hydrogen interstitials","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"D. Psiachos, R. Drautz, T. Hammerschmidt","submitted_at":"2011-02-01T15:42:16Z","abstract_excerpt":"The effect of hydrostatic strain and of interstitial hydrogen on the elastic properties of $\\alpha$-iron is investigated using \\textit{ab initio} density-functional theory calculations. We find that the cubic elastic constants and the polycrystalline elastic moduli to a good approximation decrease linearly with increasing hydrogen concentration. This net strength reduction can be partitioned into a strengthening electronic effect which is overcome by a softening volumetric effect. The calculated hydrogen-dependent elastic constants are used to determine the polycrystalline elastic moduli and a"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1102.0187","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":"1102.0187","created_at":"2026-05-18T02:54:54.533709+00:00"},{"alias_kind":"arxiv_version","alias_value":"1102.0187v1","created_at":"2026-05-18T02:54:54.533709+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1102.0187","created_at":"2026-05-18T02:54:54.533709+00:00"},{"alias_kind":"pith_short_12","alias_value":"ADBRXBEO6NEE","created_at":"2026-05-18T12:26:24.575870+00:00"},{"alias_kind":"pith_short_16","alias_value":"ADBRXBEO6NEECZ24","created_at":"2026-05-18T12:26:24.575870+00:00"},{"alias_kind":"pith_short_8","alias_value":"ADBRXBEO","created_at":"2026-05-18T12:26:24.575870+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/ADBRXBEO6NEECZ24KPKBPNG3CM","json":"https://pith.science/pith/ADBRXBEO6NEECZ24KPKBPNG3CM.json","graph_json":"https://pith.science/api/pith-number/ADBRXBEO6NEECZ24KPKBPNG3CM/graph.json","events_json":"https://pith.science/api/pith-number/ADBRXBEO6NEECZ24KPKBPNG3CM/events.json","paper":"https://pith.science/paper/ADBRXBEO"},"agent_actions":{"view_html":"https://pith.science/pith/ADBRXBEO6NEECZ24KPKBPNG3CM","download_json":"https://pith.science/pith/ADBRXBEO6NEECZ24KPKBPNG3CM.json","view_paper":"https://pith.science/paper/ADBRXBEO","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1102.0187&json=true","fetch_graph":"https://pith.science/api/pith-number/ADBRXBEO6NEECZ24KPKBPNG3CM/graph.json","fetch_events":"https://pith.science/api/pith-number/ADBRXBEO6NEECZ24KPKBPNG3CM/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/ADBRXBEO6NEECZ24KPKBPNG3CM/action/timestamp_anchor","attest_storage":"https://pith.science/pith/ADBRXBEO6NEECZ24KPKBPNG3CM/action/storage_attestation","attest_author":"https://pith.science/pith/ADBRXBEO6NEECZ24KPKBPNG3CM/action/author_attestation","sign_citation":"https://pith.science/pith/ADBRXBEO6NEECZ24KPKBPNG3CM/action/citation_signature","submit_replication":"https://pith.science/pith/ADBRXBEO6NEECZ24KPKBPNG3CM/action/replication_record"}},"created_at":"2026-05-18T02:54:54.533709+00:00","updated_at":"2026-05-18T02:54:54.533709+00:00"}