{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:I45QORP357S6T6KUKUSBBRDD5L","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":"0918d91ccb4ac0a6eb4d8ee4a34af17e57a12f0f686a783cb3a5ffca6598149b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2010-09-21T20:59:48Z","title_canon_sha256":"2f65845d6be65abad85a0ddc7e8df045316df80a764e2165b20003b6494cac59"},"schema_version":"1.0","source":{"id":"1009.4213","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1009.4213","created_at":"2026-05-18T04:23:02Z"},{"alias_kind":"arxiv_version","alias_value":"1009.4213v2","created_at":"2026-05-18T04:23:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1009.4213","created_at":"2026-05-18T04:23:02Z"},{"alias_kind":"pith_short_12","alias_value":"I45QORP357S6","created_at":"2026-05-18T12:26:07Z"},{"alias_kind":"pith_short_16","alias_value":"I45QORP357S6T6KU","created_at":"2026-05-18T12:26:07Z"},{"alias_kind":"pith_short_8","alias_value":"I45QORP3","created_at":"2026-05-18T12:26:07Z"}],"graph_snapshots":[{"event_id":"sha256:b72fb9af7a313a597e08d4b4aef5912f517f4c736a4ef79de2b24b6510aaad9a","target":"graph","created_at":"2026-05-18T04:23:02Z","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 recent observation of fractional quantum Hall effect in high mobility suspended graphene devices introduced a new direction in graphene physics, the field of electron-electron interaction dynamics. However, the technique used currently for the fabrication of such high mobility devices has several drawbacks. The most important is that the contact materials available for electronic devices are limited to only a few metals (Au, Pd, Pt, Cr and Nb) since only those are not attacked by the reactive acid (BHF) etching fabrication step. Here we show a new technique which leads to mechanically stab","authors_text":"2), A. Veligura (2), B. J. van Wees (2) ((1) Molecular Electronics, H. T. Jonkman (1), I. J. Vera-Marun (2), J. Junesch (2), J. J. van den Berg (2), M. Wojtaszek (2), N. Tombros (1, P. J. Zomer (2), the Netherlands), The Netherlands (2) Physics of Nanodevices, University of Groningen, Zernike Institute for Advanced Materials","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2010-09-21T20:59:48Z","title":"Large yield production of high mobility freely suspended graphene electronic devices on a PMGI based organic polymer"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1009.4213","kind":"arxiv","version":2},"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":"sha256:49bbd89f470c03c3dd7bf763efe2879bd6f3f8a388eb86ae6c1c4250cc2e6cb7","target":"record","created_at":"2026-05-18T04:23:02Z","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":"0918d91ccb4ac0a6eb4d8ee4a34af17e57a12f0f686a783cb3a5ffca6598149b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2010-09-21T20:59:48Z","title_canon_sha256":"2f65845d6be65abad85a0ddc7e8df045316df80a764e2165b20003b6494cac59"},"schema_version":"1.0","source":{"id":"1009.4213","kind":"arxiv","version":2}},"canonical_sha256":"473b0745fbefe5e9f954552410c463eafc9875cf4fa79cb3c08ae50070053471","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"473b0745fbefe5e9f954552410c463eafc9875cf4fa79cb3c08ae50070053471","first_computed_at":"2026-05-18T04:23:02.837669Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:23:02.837669Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ccvEO6Ja69HNUqp5KKwHOdbB8D6g8/BPJ6wAd5UB6B/RmYCqX2skGPePLR5dCilJIZjw8sttixZcJIYQDVnlBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T04:23:02.838412Z","signed_message":"canonical_sha256_bytes"},"source_id":"1009.4213","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:49bbd89f470c03c3dd7bf763efe2879bd6f3f8a388eb86ae6c1c4250cc2e6cb7","sha256:b72fb9af7a313a597e08d4b4aef5912f517f4c736a4ef79de2b24b6510aaad9a"],"state_sha256":"3c750172e0497da6716688509a592bfc17419c11f3b15b877322eb19151954d9"}