{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:QDKCN3VCPEX6IM3C5L6YQTTGN3","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":"ec26fb57b239e1e17172941558a81bda3ae1323486427e3f51b565610d2c47b9","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-10-24T21:16:44Z","title_canon_sha256":"2627933e04340927efde0079e585bcd12f0609a92def6c1522c74cff8edbc70c"},"schema_version":"1.0","source":{"id":"1810.10623","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1810.10623","created_at":"2026-05-18T00:02:20Z"},{"alias_kind":"arxiv_version","alias_value":"1810.10623v1","created_at":"2026-05-18T00:02:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1810.10623","created_at":"2026-05-18T00:02:20Z"},{"alias_kind":"pith_short_12","alias_value":"QDKCN3VCPEX6","created_at":"2026-05-18T12:32:46Z"},{"alias_kind":"pith_short_16","alias_value":"QDKCN3VCPEX6IM3C","created_at":"2026-05-18T12:32:46Z"},{"alias_kind":"pith_short_8","alias_value":"QDKCN3VC","created_at":"2026-05-18T12:32:46Z"}],"graph_snapshots":[{"event_id":"sha256:9e307572360b881c68ee4e5c2e88c861a61cbbfe882c5f1386b2bb52c5c685a3","target":"graph","created_at":"2026-05-18T00:02:20Z","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":"We have used scanning tunneling microscopy (STM) to investigate two types of hydrogen defect structures on monolayer graphene supported by hexagonal boron nitride (h-BN) in a gated field-effect transistor configuration. The first H-defect type is created by bombarding graphene with 1-keV ionized hydrogen and is identified as two hydrogen atoms bonded to a graphene vacancy via comparison of experimental data to first-principles calculations. The second type of H defect is identified as dimerized hydrogen and is created by depositing atomic hydrogen having only thermal energy onto a graphene sur","authors_text":"Aaron Bostwick, Alex Zettl, Arash A. Mostofi, Dillon Wong, Eli Rotenberg, Hsin-Zon Tsai, Johannes Lischner, Michael F. Crommie, Roland K. Kawakami, Wuwei Jin, Yang Wang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-10-24T21:16:44Z","title":"Microscopy of hydrogen and hydrogen-vacancy defect structures on graphene devices"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1810.10623","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":"sha256:0440e26afb51897ed77d18e8eee04c5174d7d54d5aab7412bdc63fad7fc5294b","target":"record","created_at":"2026-05-18T00:02:20Z","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":"ec26fb57b239e1e17172941558a81bda3ae1323486427e3f51b565610d2c47b9","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-10-24T21:16:44Z","title_canon_sha256":"2627933e04340927efde0079e585bcd12f0609a92def6c1522c74cff8edbc70c"},"schema_version":"1.0","source":{"id":"1810.10623","kind":"arxiv","version":1}},"canonical_sha256":"80d426eea2792fe43362eafd884e666eda3ec3b6e84c786454a4309cf88aaec0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"80d426eea2792fe43362eafd884e666eda3ec3b6e84c786454a4309cf88aaec0","first_computed_at":"2026-05-18T00:02:20.048493Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:02:20.048493Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"9oSqK+yMsCGsh7ZijBVuDH5voe4/HLoc4gC0ZBHPnZkrDjG4M0qECnunYDxbdfJuUxjyNIFYTU0cEy7jaLrODw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:02:20.048854Z","signed_message":"canonical_sha256_bytes"},"source_id":"1810.10623","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0440e26afb51897ed77d18e8eee04c5174d7d54d5aab7412bdc63fad7fc5294b","sha256:9e307572360b881c68ee4e5c2e88c861a61cbbfe882c5f1386b2bb52c5c685a3"],"state_sha256":"e831e187b902009ee5dc8dcbfb20ca57c2cd161bc23d7e35a6e4d093f08c7850"}