{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:FMRGCBK6UJXPEHMZAYR7P4AFP6","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"7443ff8b9b7b12925fe30348c5f9e10dcc0bfab6c51adcdc7ddac1035f6eaaa7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2011-02-04T13:39:27Z","title_canon_sha256":"335932349411b4ced4f84ca0fd1a2d6871fe5f53ffcaf62786b815fc6c42420d"},"schema_version":"1.0","source":{"id":"1102.0912","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1102.0912","created_at":"2026-05-18T04:30:03Z"},{"alias_kind":"arxiv_version","alias_value":"1102.0912v1","created_at":"2026-05-18T04:30:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1102.0912","created_at":"2026-05-18T04:30:03Z"},{"alias_kind":"pith_short_12","alias_value":"FMRGCBK6UJXP","created_at":"2026-05-18T12:26:28Z"},{"alias_kind":"pith_short_16","alias_value":"FMRGCBK6UJXPEHMZ","created_at":"2026-05-18T12:26:28Z"},{"alias_kind":"pith_short_8","alias_value":"FMRGCBK6","created_at":"2026-05-18T12:26:28Z"}],"graph_snapshots":[{"event_id":"sha256:d592e641e27874931f65554654f62f5c82444320ffc74f0aa1da1f5ba31cefe0","target":"graph","created_at":"2026-05-18T04:30:03Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"The boosting effect of Cr on the growth of the protective alumina scale on Fe-Al alloys is investigated by x-ray photoelectron spectroscopy. Using low oxygen pressure the surface chemistry of the alloys is monitored starting from the first moments of oxidation. Chromium effect on the Fe-Al surface-bulk exchange is clearly detected by analyzing the measured surface concentrations within the atomic concentration models. Previous ab initio calculations agree well with the present experiments.","authors_text":"Eero Nurmi, Janos Koll\\'ar, Kalevi Kokko, Levente Vitos, Markku Heinonen, Marko Punkkinen","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2011-02-04T13:39:27Z","title":"Initial oxidation of Fe-Al and Fe-Cr-Al alloys: Cr as an alumina booster"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1102.0912","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:a6dc3267d02d1a16644db94e2105f2ed374741bdf7dfa3e92e6b9b814c78cc76","target":"record","created_at":"2026-05-18T04:30:03Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"7443ff8b9b7b12925fe30348c5f9e10dcc0bfab6c51adcdc7ddac1035f6eaaa7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2011-02-04T13:39:27Z","title_canon_sha256":"335932349411b4ced4f84ca0fd1a2d6871fe5f53ffcaf62786b815fc6c42420d"},"schema_version":"1.0","source":{"id":"1102.0912","kind":"arxiv","version":1}},"canonical_sha256":"2b2261055ea26ef21d990623f7f0057fb61ee18821dc65861c49d36489741135","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2b2261055ea26ef21d990623f7f0057fb61ee18821dc65861c49d36489741135","first_computed_at":"2026-05-18T04:30:03.408084Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:30:03.408084Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"fDqq1ilqWzgTuPzN/g/7qFvQ7Z0c0omN7XPkh7UgX4nvcBxCA4XqDLA4ACyAWuoxuSqm7DYSiVHPQqh6naVNDA==","signature_status":"signed_v1","signed_at":"2026-05-18T04:30:03.408469Z","signed_message":"canonical_sha256_bytes"},"source_id":"1102.0912","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a6dc3267d02d1a16644db94e2105f2ed374741bdf7dfa3e92e6b9b814c78cc76","sha256:d592e641e27874931f65554654f62f5c82444320ffc74f0aa1da1f5ba31cefe0"],"state_sha256":"c55baee0433f271f9c4ca53705ed9e468348fca39f38f6c0634d9803109e2520"}