{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:4XUDFE3XED4Z2GGWVJEJXLKMVW","short_pith_number":"pith:4XUDFE3X","canonical_record":{"source":{"id":"1306.5523","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2013-06-24T07:23:02Z","cross_cats_sorted":[],"title_canon_sha256":"b0bcb2e530342a31e738f763967f74895e24a4034f6ee40ec30e1dd1abc54e16","abstract_canon_sha256":"66c09b7a0ecf92729d148c6043e5746f247f4c7041b45058c482b8a6cc114736"},"schema_version":"1.0"},"canonical_sha256":"e5e832937720f99d18d6aa489bad4cad872f97da3f688593c1876b9e4e5fdabe","source":{"kind":"arxiv","id":"1306.5523","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1306.5523","created_at":"2026-05-18T01:49:08Z"},{"alias_kind":"arxiv_version","alias_value":"1306.5523v1","created_at":"2026-05-18T01:49:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1306.5523","created_at":"2026-05-18T01:49:08Z"},{"alias_kind":"pith_short_12","alias_value":"4XUDFE3XED4Z","created_at":"2026-05-18T12:27:34Z"},{"alias_kind":"pith_short_16","alias_value":"4XUDFE3XED4Z2GGW","created_at":"2026-05-18T12:27:34Z"},{"alias_kind":"pith_short_8","alias_value":"4XUDFE3X","created_at":"2026-05-18T12:27:34Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:4XUDFE3XED4Z2GGWVJEJXLKMVW","target":"record","payload":{"canonical_record":{"source":{"id":"1306.5523","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2013-06-24T07:23:02Z","cross_cats_sorted":[],"title_canon_sha256":"b0bcb2e530342a31e738f763967f74895e24a4034f6ee40ec30e1dd1abc54e16","abstract_canon_sha256":"66c09b7a0ecf92729d148c6043e5746f247f4c7041b45058c482b8a6cc114736"},"schema_version":"1.0"},"canonical_sha256":"e5e832937720f99d18d6aa489bad4cad872f97da3f688593c1876b9e4e5fdabe","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:49:08.861944Z","signature_b64":"OK/fYE1Y1EfGEgFcDUiWlTbv2+lRjwzFltR8dcrf67Gxw3/w53U0TXCQ+q/S6nDs+D4pAKC1athk4D6/UgtiAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e5e832937720f99d18d6aa489bad4cad872f97da3f688593c1876b9e4e5fdabe","last_reissued_at":"2026-05-18T01:49:08.861448Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:49:08.861448Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1306.5523","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:49:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qcV4pNj149FHturd+oKLDvl82vZ3SnHg/M+F1YZfoAZhYft2sSteWV8Tg3ni/RI0s6kpPuB89p8VAyBNTAdsBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T12:02:43.027407Z"},"content_sha256":"c40d28e005318d741d163e7091d16f9356bed57179fd3f4aacf6b3cd3dadab8b","schema_version":"1.0","event_id":"sha256:c40d28e005318d741d163e7091d16f9356bed57179fd3f4aacf6b3cd3dadab8b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:4XUDFE3XED4Z2GGWVJEJXLKMVW","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Combined AFM and STM measurements of a silicene sheet grown on Ag(111) surface","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Abdelkader Kara, Andrew J. Mayne, G\\'erald Dujardin, Hamid Oughaddou, Hanna Enriquez, Martin \\v{S}vec, Mohamed Rachid Tchalala, Pavel Jel\\'inek, Prokop Hapala, Zsolt Majzik","submitted_at":"2013-06-24T07:23:02Z","abstract_excerpt":"In this Letter, we present the first non-contact atomic force microscopy (nc-AFM) of a silicene on silver (Ag) surface, obtained by combining non-contact atomic force microscopy (nc-AFM) and scanning tunneling microscopy (STM). STM images over large areas of silicene grown on Ag(111) surface show both (sqrt13xsqrt13)R13.9{\\deg} and (4x4) superstructures. For the widely observed (4x4) structure, the nc-AFM topography shows an atomic-scale contrast inversion as the tip-surface distance is decreased. At the shortest tip-surface distance, the nc-AFM topography is very similar to the STM one. The o"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1306.5523","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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:49:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"i8UfVa2OGsVYH4SI5AkAaYgCw+YivpOl6e2Sd4MxT9xyqiLE5oBAWSIo0mkjq6e84EPQUpR5SBMciykEZKKFBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T12:02:43.027844Z"},"content_sha256":"43a26733a0e22b2f5c62a339dbbd8ca0e4dd0a97e8bc1f321da641ad7ce5cba2","schema_version":"1.0","event_id":"sha256:43a26733a0e22b2f5c62a339dbbd8ca0e4dd0a97e8bc1f321da641ad7ce5cba2"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4XUDFE3XED4Z2GGWVJEJXLKMVW/bundle.json","state_url":"https://pith.science/pith/4XUDFE3XED4Z2GGWVJEJXLKMVW/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4XUDFE3XED4Z2GGWVJEJXLKMVW/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-05-26T12:02:43Z","links":{"resolver":"https://pith.science/pith/4XUDFE3XED4Z2GGWVJEJXLKMVW","bundle":"https://pith.science/pith/4XUDFE3XED4Z2GGWVJEJXLKMVW/bundle.json","state":"https://pith.science/pith/4XUDFE3XED4Z2GGWVJEJXLKMVW/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4XUDFE3XED4Z2GGWVJEJXLKMVW/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:4XUDFE3XED4Z2GGWVJEJXLKMVW","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":"66c09b7a0ecf92729d148c6043e5746f247f4c7041b45058c482b8a6cc114736","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2013-06-24T07:23:02Z","title_canon_sha256":"b0bcb2e530342a31e738f763967f74895e24a4034f6ee40ec30e1dd1abc54e16"},"schema_version":"1.0","source":{"id":"1306.5523","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1306.5523","created_at":"2026-05-18T01:49:08Z"},{"alias_kind":"arxiv_version","alias_value":"1306.5523v1","created_at":"2026-05-18T01:49:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1306.5523","created_at":"2026-05-18T01:49:08Z"},{"alias_kind":"pith_short_12","alias_value":"4XUDFE3XED4Z","created_at":"2026-05-18T12:27:34Z"},{"alias_kind":"pith_short_16","alias_value":"4XUDFE3XED4Z2GGW","created_at":"2026-05-18T12:27:34Z"},{"alias_kind":"pith_short_8","alias_value":"4XUDFE3X","created_at":"2026-05-18T12:27:34Z"}],"graph_snapshots":[{"event_id":"sha256:43a26733a0e22b2f5c62a339dbbd8ca0e4dd0a97e8bc1f321da641ad7ce5cba2","target":"graph","created_at":"2026-05-18T01:49:08Z","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":"In this Letter, we present the first non-contact atomic force microscopy (nc-AFM) of a silicene on silver (Ag) surface, obtained by combining non-contact atomic force microscopy (nc-AFM) and scanning tunneling microscopy (STM). STM images over large areas of silicene grown on Ag(111) surface show both (sqrt13xsqrt13)R13.9{\\deg} and (4x4) superstructures. For the widely observed (4x4) structure, the nc-AFM topography shows an atomic-scale contrast inversion as the tip-surface distance is decreased. At the shortest tip-surface distance, the nc-AFM topography is very similar to the STM one. The o","authors_text":"Abdelkader Kara, Andrew J. Mayne, G\\'erald Dujardin, Hamid Oughaddou, Hanna Enriquez, Martin \\v{S}vec, Mohamed Rachid Tchalala, Pavel Jel\\'inek, Prokop Hapala, Zsolt Majzik","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2013-06-24T07:23:02Z","title":"Combined AFM and STM measurements of a silicene sheet grown on Ag(111) surface"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1306.5523","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:c40d28e005318d741d163e7091d16f9356bed57179fd3f4aacf6b3cd3dadab8b","target":"record","created_at":"2026-05-18T01:49:08Z","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":"66c09b7a0ecf92729d148c6043e5746f247f4c7041b45058c482b8a6cc114736","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2013-06-24T07:23:02Z","title_canon_sha256":"b0bcb2e530342a31e738f763967f74895e24a4034f6ee40ec30e1dd1abc54e16"},"schema_version":"1.0","source":{"id":"1306.5523","kind":"arxiv","version":1}},"canonical_sha256":"e5e832937720f99d18d6aa489bad4cad872f97da3f688593c1876b9e4e5fdabe","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e5e832937720f99d18d6aa489bad4cad872f97da3f688593c1876b9e4e5fdabe","first_computed_at":"2026-05-18T01:49:08.861448Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:49:08.861448Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"OK/fYE1Y1EfGEgFcDUiWlTbv2+lRjwzFltR8dcrf67Gxw3/w53U0TXCQ+q/S6nDs+D4pAKC1athk4D6/UgtiAA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:49:08.861944Z","signed_message":"canonical_sha256_bytes"},"source_id":"1306.5523","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c40d28e005318d741d163e7091d16f9356bed57179fd3f4aacf6b3cd3dadab8b","sha256:43a26733a0e22b2f5c62a339dbbd8ca0e4dd0a97e8bc1f321da641ad7ce5cba2"],"state_sha256":"b7522a45c48ab7deab58c7c206d6783e50a5eca26706cba47d2267003da8e1e4"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JYa/rc3oA+w/7VxjSnQynU5RFcjaNeGtVeesQc/qcgn2yYBo4WCl34KtckCnUnnb1+e7PARHpDZWR+6Per6yCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T12:02:43.031434Z","bundle_sha256":"ab76be5acb7ef462870204427b9842746427f7c4bb4d8ed5ac81acfea5971fbe"}}