{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2012:V6QNL6VRZQSHAWTCLCB4UGW3WQ","short_pith_number":"pith:V6QNL6VR","schema_version":"1.0","canonical_sha256":"afa0d5fab1cc24705a625883ca1adbb435531a15c1a3f694ca3ce2fe94876800","source":{"kind":"arxiv","id":"1202.4570","version":1},"attestation_state":"computed","paper":{"title":"Oxygen vacancy segregation and space-charge effects in grain boundaries of dry and hydrated BaZrO3","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mes-hall"],"primary_cat":"cond-mat.mtrl-sci","authors_text":"B. Joakim Nyman, Edit E. Helgee, G\\\"oran Wahnstr\\\"om","submitted_at":"2012-02-21T09:32:43Z","abstract_excerpt":"A space-charge model is applied to describe the equilibrium effects of segregation of double-donor oxygen vacancies to grain boundaries in dry and wet acceptor-doped samples of the perovskite oxide BaZrO3. The grain boundary core vacancy concentrations and electrostatic potential barriers resulting from different vacancy segregation energies are evaluated. Density-functional calculations on vacancy segregation to the mirror-symmetric \\Sigma 3 (112) [-110] tilt grain boundary are also presented. Our results indicate that oxygen vacancy segregation can be responsible for the low grain boundary p"},"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":"1202.4570","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2012-02-21T09:32:43Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"b46334a9be54b9f3c623e83c7894c5921bc007a3e4c25ac0f0f3af643380e8ab","abstract_canon_sha256":"a32ff36b051291badd725361a7501bb2e8d2fba3ac60597ed58ce455031518eb"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:01:50.373289Z","signature_b64":"Wz/dwZek7NiDV9cppa7zuQ8ZgmwfmpUS9u2+Kzj08PSAnfNzs69Kxco9ZQ5gq8E8ptKGGi8BsdHgRh2WpLYvAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"afa0d5fab1cc24705a625883ca1adbb435531a15c1a3f694ca3ce2fe94876800","last_reissued_at":"2026-05-18T04:01:50.372692Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:01:50.372692Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Oxygen vacancy segregation and space-charge effects in grain boundaries of dry and hydrated BaZrO3","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mes-hall"],"primary_cat":"cond-mat.mtrl-sci","authors_text":"B. Joakim Nyman, Edit E. Helgee, G\\\"oran Wahnstr\\\"om","submitted_at":"2012-02-21T09:32:43Z","abstract_excerpt":"A space-charge model is applied to describe the equilibrium effects of segregation of double-donor oxygen vacancies to grain boundaries in dry and wet acceptor-doped samples of the perovskite oxide BaZrO3. The grain boundary core vacancy concentrations and electrostatic potential barriers resulting from different vacancy segregation energies are evaluated. Density-functional calculations on vacancy segregation to the mirror-symmetric \\Sigma 3 (112) [-110] tilt grain boundary are also presented. Our results indicate that oxygen vacancy segregation can be responsible for the low grain boundary p"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1202.4570","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":"1202.4570","created_at":"2026-05-18T04:01:50.372787+00:00"},{"alias_kind":"arxiv_version","alias_value":"1202.4570v1","created_at":"2026-05-18T04:01:50.372787+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1202.4570","created_at":"2026-05-18T04:01:50.372787+00:00"},{"alias_kind":"pith_short_12","alias_value":"V6QNL6VRZQSH","created_at":"2026-05-18T12:27:25.539911+00:00"},{"alias_kind":"pith_short_16","alias_value":"V6QNL6VRZQSHAWTC","created_at":"2026-05-18T12:27:25.539911+00:00"},{"alias_kind":"pith_short_8","alias_value":"V6QNL6VR","created_at":"2026-05-18T12:27:25.539911+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/V6QNL6VRZQSHAWTCLCB4UGW3WQ","json":"https://pith.science/pith/V6QNL6VRZQSHAWTCLCB4UGW3WQ.json","graph_json":"https://pith.science/api/pith-number/V6QNL6VRZQSHAWTCLCB4UGW3WQ/graph.json","events_json":"https://pith.science/api/pith-number/V6QNL6VRZQSHAWTCLCB4UGW3WQ/events.json","paper":"https://pith.science/paper/V6QNL6VR"},"agent_actions":{"view_html":"https://pith.science/pith/V6QNL6VRZQSHAWTCLCB4UGW3WQ","download_json":"https://pith.science/pith/V6QNL6VRZQSHAWTCLCB4UGW3WQ.json","view_paper":"https://pith.science/paper/V6QNL6VR","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1202.4570&json=true","fetch_graph":"https://pith.science/api/pith-number/V6QNL6VRZQSHAWTCLCB4UGW3WQ/graph.json","fetch_events":"https://pith.science/api/pith-number/V6QNL6VRZQSHAWTCLCB4UGW3WQ/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/V6QNL6VRZQSHAWTCLCB4UGW3WQ/action/timestamp_anchor","attest_storage":"https://pith.science/pith/V6QNL6VRZQSHAWTCLCB4UGW3WQ/action/storage_attestation","attest_author":"https://pith.science/pith/V6QNL6VRZQSHAWTCLCB4UGW3WQ/action/author_attestation","sign_citation":"https://pith.science/pith/V6QNL6VRZQSHAWTCLCB4UGW3WQ/action/citation_signature","submit_replication":"https://pith.science/pith/V6QNL6VRZQSHAWTCLCB4UGW3WQ/action/replication_record"}},"created_at":"2026-05-18T04:01:50.372787+00:00","updated_at":"2026-05-18T04:01:50.372787+00:00"}