{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:FXWUTKP3U6KTPLMVXNVTCYZQHT","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":"52a2cb0f8b82ac741477de2eb0b6f2128d0eaed591b0023bdbf99dd98eeca56f","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2012-08-03T06:40:04Z","title_canon_sha256":"07ec13ebea4c6aff851391c434deb0a64e209cf7405b7587d536d679ffad688d"},"schema_version":"1.0","source":{"id":"1208.0666","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1208.0666","created_at":"2026-05-18T01:55:23Z"},{"alias_kind":"arxiv_version","alias_value":"1208.0666v1","created_at":"2026-05-18T01:55:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1208.0666","created_at":"2026-05-18T01:55:23Z"},{"alias_kind":"pith_short_12","alias_value":"FXWUTKP3U6KT","created_at":"2026-05-18T12:27:06Z"},{"alias_kind":"pith_short_16","alias_value":"FXWUTKP3U6KTPLMV","created_at":"2026-05-18T12:27:06Z"},{"alias_kind":"pith_short_8","alias_value":"FXWUTKP3","created_at":"2026-05-18T12:27:06Z"}],"graph_snapshots":[{"event_id":"sha256:a80fd5cc7c75d65b97940b6e306a894ce077d509aa4ca1225021d93af4b9e038","target":"graph","created_at":"2026-05-18T01:55:23Z","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":"Self-assembled Ge wires with a height of only 3 unit cells and a length of up to 2 micrometers were grown on Si(001) by means of a catalyst-free method based on molecular beam epitaxy. The wires grow horizontally along either the [100] or the [010] direction. On atomically flat surfaces, they exhibit a highly uniform, triangular cross section. A simple thermodynamic model accounts for the existence of a preferential base width for longitudinal expansion, in quantitative agreement with the experimental findings. Despite the absence of intentional doping, first transistor-type devices made from ","authors_text":"Armando Rastelli, Bernd Rellinghaus, Christine Mickel, Daniele Scopece, Francesco Montalenti, Georgios Katsaros, Jianjun Zhang, Leo Miglio, Oliver G. Schmidt, Roman O. Rezaev, Silvano De Franceschi","cross_cats":["cond-mat.mes-hall"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2012-08-03T06:40:04Z","title":"Monolithic growth of ultra-thin Ge nanowires on Si(001)"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1208.0666","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:b5fd495963609aae3314b280014812cf6310e115bfe8a08677d609d8fb75a710","target":"record","created_at":"2026-05-18T01:55:23Z","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":"52a2cb0f8b82ac741477de2eb0b6f2128d0eaed591b0023bdbf99dd98eeca56f","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2012-08-03T06:40:04Z","title_canon_sha256":"07ec13ebea4c6aff851391c434deb0a64e209cf7405b7587d536d679ffad688d"},"schema_version":"1.0","source":{"id":"1208.0666","kind":"arxiv","version":1}},"canonical_sha256":"2ded49a9fba79537ad95bb6b3163303cfd6772b4de162dd463d8cfcf647661d7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2ded49a9fba79537ad95bb6b3163303cfd6772b4de162dd463d8cfcf647661d7","first_computed_at":"2026-05-18T01:55:23.519982Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:55:23.519982Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"l7v4xY0G7A61U6bKi8zNl/t5nEtq1MufE9odvu1eGHUS1YpeK7O2//DgL23Ri2/2xqaN/vvbGIp/+EjaAEWyAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:55:23.520577Z","signed_message":"canonical_sha256_bytes"},"source_id":"1208.0666","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b5fd495963609aae3314b280014812cf6310e115bfe8a08677d609d8fb75a710","sha256:a80fd5cc7c75d65b97940b6e306a894ce077d509aa4ca1225021d93af4b9e038"],"state_sha256":"45e0579d046df9c849829eefa6e879496cad830d6c5ce86d19bb5e0c2d00814a"}