{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:KQ2DSVLG7GYNJ62KLSOYCA5ODE","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":"998b764e45d9a871c2127282c20534f4139f83a752c317b174d0332c323e8cd6","cross_cats_sorted":["physics.flu-dyn"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2012-03-06T11:17:35Z","title_canon_sha256":"7325d878e51774b162b06fb43146da17badcbf43670e7f56115755020c7bd2fd"},"schema_version":"1.0","source":{"id":"1203.1167","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1203.1167","created_at":"2026-05-18T01:58:14Z"},{"alias_kind":"arxiv_version","alias_value":"1203.1167v1","created_at":"2026-05-18T01:58:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1203.1167","created_at":"2026-05-18T01:58:14Z"},{"alias_kind":"pith_short_12","alias_value":"KQ2DSVLG7GYN","created_at":"2026-05-18T12:27:11Z"},{"alias_kind":"pith_short_16","alias_value":"KQ2DSVLG7GYNJ62K","created_at":"2026-05-18T12:27:11Z"},{"alias_kind":"pith_short_8","alias_value":"KQ2DSVLG","created_at":"2026-05-18T12:27:11Z"}],"graph_snapshots":[{"event_id":"sha256:4413a624311bca28af0a597d94c19a5ed08e024b4489e55c526c265d6a738fe2","target":"graph","created_at":"2026-05-18T01:58:14Z","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":"Ion Beam Sputtering (IBS) is known to produce surface nanopatterns over macroscopic areas on a wide range of materials. However, in spite of the technological potential of this route to nanostructuring, the physical process by which these surfaces self-organize remains poorly under- stood. We have performed detailed experiments of IBS on Si substrates that validate dynamical and morphological predictions from a hydrodynamic description of the phenomenon. Our results elucidate flow of a nanoscopically thin and highly viscous surface layer, driven by the stress created by the ion-beam, as a desc","authors_text":"J. Mu\\~noz-Garc\\'ia, L. V\\'azquez, M. Castro, R. Cuerno, R. Gago","cross_cats":["physics.flu-dyn"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2012-03-06T11:17:35Z","title":"Solid flow drives surface nanopatterning by ion-beam irradiation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1203.1167","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:de63f09eea65fbedda95525f8518c678c4334543782281350fe5fa31678f5e44","target":"record","created_at":"2026-05-18T01:58:14Z","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":"998b764e45d9a871c2127282c20534f4139f83a752c317b174d0332c323e8cd6","cross_cats_sorted":["physics.flu-dyn"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2012-03-06T11:17:35Z","title_canon_sha256":"7325d878e51774b162b06fb43146da17badcbf43670e7f56115755020c7bd2fd"},"schema_version":"1.0","source":{"id":"1203.1167","kind":"arxiv","version":1}},"canonical_sha256":"5434395566f9b0d4fb4a5c9d8103ae19184778dbe7ecc13e2a651899e50efd1a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5434395566f9b0d4fb4a5c9d8103ae19184778dbe7ecc13e2a651899e50efd1a","first_computed_at":"2026-05-18T01:58:14.385572Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:58:14.385572Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"gK5dM3HftviDR0ikqjPNYPTWrZVnJZ/Qyy4CZc7aICpks0uYmtbLJzYQ1BAe9d8XewvLSU1XXhuvuZ4RQ4V4BQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:58:14.386365Z","signed_message":"canonical_sha256_bytes"},"source_id":"1203.1167","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:de63f09eea65fbedda95525f8518c678c4334543782281350fe5fa31678f5e44","sha256:4413a624311bca28af0a597d94c19a5ed08e024b4489e55c526c265d6a738fe2"],"state_sha256":"0e79e4600abe073d45b290eff84a6468ed1adb2b9dd35d75efbaa7a58558ddd9"}