{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2015:YJMA3H2XQM7L757KVOCD4EMXHR","short_pith_number":"pith:YJMA3H2X","schema_version":"1.0","canonical_sha256":"c2580d9f57833ebff7eaab843e11973c7506a73d6171b68620facb78ab82b260","source":{"kind":"arxiv","id":"1505.05127","version":1},"attestation_state":"computed","paper":{"title":"Modification of electronic surface states by graphene islands on Cu(111)","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"E. Johnston-Halperin, G. A. Gambrel, J. A. Gupta, N. M. Santagata, S. J. Tjung, S. M. Hollen","submitted_at":"2015-05-19T19:39:24Z","abstract_excerpt":"We present a study of graphene/substrate interactions on UHV-grown graphene islands with minimal surface contamination using \\emph{in situ} low-temperature scanning tunneling microscopy (STM). We compare the physical and electronic structure of the sample surface with atomic spatial resolution on graphene islands versus regions of bare Cu(111) substrate. We find that the Rydberg-like series of image potential states is shifted toward lower energy over the graphene islands relative to Cu(111), indicating a decrease in the local work function, and the resonances have a much smaller linewidth, in"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1505.05127","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2015-05-19T19:39:24Z","cross_cats_sorted":[],"title_canon_sha256":"e8d70cfd7659dd0bd6f656fc8caf14cd092873d7349a0c6f2769814f799cfc83","abstract_canon_sha256":"324ce2103b241cd0ce67366c6492cd4f5fd6b8ff0bc8287b7c324b5ad57e3cc2"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:05:22.117086Z","signature_b64":"ODOyqkiFEbLRQnDafkfGxut9RpJ/fQJ1youG5/ejQBmYe8NuJ269eawHMQicXrajmi3c1r4v5mlVfhLB/4YZCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c2580d9f57833ebff7eaab843e11973c7506a73d6171b68620facb78ab82b260","last_reissued_at":"2026-05-18T02:05:22.116479Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:05:22.116479Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Modification of electronic surface states by graphene islands on Cu(111)","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"E. Johnston-Halperin, G. A. Gambrel, J. A. Gupta, N. M. Santagata, S. J. Tjung, S. M. Hollen","submitted_at":"2015-05-19T19:39:24Z","abstract_excerpt":"We present a study of graphene/substrate interactions on UHV-grown graphene islands with minimal surface contamination using \\emph{in situ} low-temperature scanning tunneling microscopy (STM). We compare the physical and electronic structure of the sample surface with atomic spatial resolution on graphene islands versus regions of bare Cu(111) substrate. We find that the Rydberg-like series of image potential states is shifted toward lower energy over the graphene islands relative to Cu(111), indicating a decrease in the local work function, and the resonances have a much smaller linewidth, in"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1505.05127","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"aliases":[{"alias_kind":"arxiv","alias_value":"1505.05127","created_at":"2026-05-18T02:05:22.116558+00:00"},{"alias_kind":"arxiv_version","alias_value":"1505.05127v1","created_at":"2026-05-18T02:05:22.116558+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1505.05127","created_at":"2026-05-18T02:05:22.116558+00:00"},{"alias_kind":"pith_short_12","alias_value":"YJMA3H2XQM7L","created_at":"2026-05-18T12:29:50.041715+00:00"},{"alias_kind":"pith_short_16","alias_value":"YJMA3H2XQM7L757K","created_at":"2026-05-18T12:29:50.041715+00:00"},{"alias_kind":"pith_short_8","alias_value":"YJMA3H2X","created_at":"2026-05-18T12:29:50.041715+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/YJMA3H2XQM7L757KVOCD4EMXHR","json":"https://pith.science/pith/YJMA3H2XQM7L757KVOCD4EMXHR.json","graph_json":"https://pith.science/api/pith-number/YJMA3H2XQM7L757KVOCD4EMXHR/graph.json","events_json":"https://pith.science/api/pith-number/YJMA3H2XQM7L757KVOCD4EMXHR/events.json","paper":"https://pith.science/paper/YJMA3H2X"},"agent_actions":{"view_html":"https://pith.science/pith/YJMA3H2XQM7L757KVOCD4EMXHR","download_json":"https://pith.science/pith/YJMA3H2XQM7L757KVOCD4EMXHR.json","view_paper":"https://pith.science/paper/YJMA3H2X","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1505.05127&json=true","fetch_graph":"https://pith.science/api/pith-number/YJMA3H2XQM7L757KVOCD4EMXHR/graph.json","fetch_events":"https://pith.science/api/pith-number/YJMA3H2XQM7L757KVOCD4EMXHR/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/YJMA3H2XQM7L757KVOCD4EMXHR/action/timestamp_anchor","attest_storage":"https://pith.science/pith/YJMA3H2XQM7L757KVOCD4EMXHR/action/storage_attestation","attest_author":"https://pith.science/pith/YJMA3H2XQM7L757KVOCD4EMXHR/action/author_attestation","sign_citation":"https://pith.science/pith/YJMA3H2XQM7L757KVOCD4EMXHR/action/citation_signature","submit_replication":"https://pith.science/pith/YJMA3H2XQM7L757KVOCD4EMXHR/action/replication_record"}},"created_at":"2026-05-18T02:05:22.116558+00:00","updated_at":"2026-05-18T02:05:22.116558+00:00"}