{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:PMWCYVOBZYVMV2MKOYGTZQXL4N","short_pith_number":"pith:PMWCYVOB","canonical_record":{"source":{"id":"1208.5336","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2012-08-27T08:55:38Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"3a6e9d6e04322d80c44c1a89e039c2fb141246166603886cdbea07a08da0a565","abstract_canon_sha256":"81f5ba332a109d3c73acf1256f5ac8376f59b1ae56fa1dcd26cd6ecfa93a69ef"},"schema_version":"1.0"},"canonical_sha256":"7b2c2c55c1ce2acae98a760d3cc2ebe34149a36a2629570e9fd2adc308952c2d","source":{"kind":"arxiv","id":"1208.5336","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1208.5336","created_at":"2026-05-18T03:46:59Z"},{"alias_kind":"arxiv_version","alias_value":"1208.5336v1","created_at":"2026-05-18T03:46:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1208.5336","created_at":"2026-05-18T03:46:59Z"},{"alias_kind":"pith_short_12","alias_value":"PMWCYVOBZYVM","created_at":"2026-05-18T12:27:18Z"},{"alias_kind":"pith_short_16","alias_value":"PMWCYVOBZYVMV2MK","created_at":"2026-05-18T12:27:18Z"},{"alias_kind":"pith_short_8","alias_value":"PMWCYVOB","created_at":"2026-05-18T12:27:18Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:PMWCYVOBZYVMV2MKOYGTZQXL4N","target":"record","payload":{"canonical_record":{"source":{"id":"1208.5336","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2012-08-27T08:55:38Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"3a6e9d6e04322d80c44c1a89e039c2fb141246166603886cdbea07a08da0a565","abstract_canon_sha256":"81f5ba332a109d3c73acf1256f5ac8376f59b1ae56fa1dcd26cd6ecfa93a69ef"},"schema_version":"1.0"},"canonical_sha256":"7b2c2c55c1ce2acae98a760d3cc2ebe34149a36a2629570e9fd2adc308952c2d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:46:59.734722Z","signature_b64":"UtK6V6KbbpBvhysJXwpJZqPWu57EnRPoukahy5aozNYOVu7mpp00fTg42qygxRPAXgSVLiK01Db4dpDLdhdhCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7b2c2c55c1ce2acae98a760d3cc2ebe34149a36a2629570e9fd2adc308952c2d","last_reissued_at":"2026-05-18T03:46:59.733831Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:46:59.733831Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1208.5336","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":"2026-05-18T03:46:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AlutpXrfFVYtUoaNNi/15TS64xMQrr1mWt8C7zlfypC1h+7Vc5/DIzLSWEv7XiCKlRn/SrXgJEekGDETBpThBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T19:12:08.633928Z"},"content_sha256":"e299ecc401e513c809428faef7f8b24a953602def2e840bdaed871c0fbfd1e47","schema_version":"1.0","event_id":"sha256:e299ecc401e513c809428faef7f8b24a953602def2e840bdaed871c0fbfd1e47"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:PMWCYVOBZYVMV2MKOYGTZQXL4N","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"STM-induced surface aggregates on metals and oxidized silicon","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci"],"primary_cat":"cond-mat.mes-hall","authors_text":"Dominik St\\\"offler, Hilbert von L\\\"ohneysen, Regina Hoffmann","submitted_at":"2012-08-27T08:55:38Z","abstract_excerpt":"We have observed an aggregation of carbon or carbon derivatives on platinum and natively oxidized silicon surfaces during STM measurements in ultra-high vacuum on solvent-cleaned samples previously structured by e-beam lithography. We have imaged the aggregated layer with scanning tunneling microscopy (STM) as well as scanning electron microscopy (SEM). The amount of the aggregated material increases with the number of STM scans and with the tunneling voltage. Film thicknesses of up to 10 nm with five successive STM measurements have been obtained."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1208.5336","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":"2026-05-18T03:46:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RHp2heZcxHy4xEaou9/C5MaeJ4Lpu5d9rQRConTUEfL2J+CC8BpfjYDLX9ULHqMNolL9bmDoegTYSuPv0ohGDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T19:12:08.634539Z"},"content_sha256":"5af30e8540009ac7c5e9c619fba186b1121e07b48024bc4e3855875a55e36960","schema_version":"1.0","event_id":"sha256:5af30e8540009ac7c5e9c619fba186b1121e07b48024bc4e3855875a55e36960"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/PMWCYVOBZYVMV2MKOYGTZQXL4N/bundle.json","state_url":"https://pith.science/pith/PMWCYVOBZYVMV2MKOYGTZQXL4N/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/PMWCYVOBZYVMV2MKOYGTZQXL4N/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":"2026-05-26T19:12:08Z","links":{"resolver":"https://pith.science/pith/PMWCYVOBZYVMV2MKOYGTZQXL4N","bundle":"https://pith.science/pith/PMWCYVOBZYVMV2MKOYGTZQXL4N/bundle.json","state":"https://pith.science/pith/PMWCYVOBZYVMV2MKOYGTZQXL4N/state.json","well_known_bundle":"https://pith.science/.well-known/pith/PMWCYVOBZYVMV2MKOYGTZQXL4N/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:PMWCYVOBZYVMV2MKOYGTZQXL4N","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":"81f5ba332a109d3c73acf1256f5ac8376f59b1ae56fa1dcd26cd6ecfa93a69ef","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2012-08-27T08:55:38Z","title_canon_sha256":"3a6e9d6e04322d80c44c1a89e039c2fb141246166603886cdbea07a08da0a565"},"schema_version":"1.0","source":{"id":"1208.5336","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1208.5336","created_at":"2026-05-18T03:46:59Z"},{"alias_kind":"arxiv_version","alias_value":"1208.5336v1","created_at":"2026-05-18T03:46:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1208.5336","created_at":"2026-05-18T03:46:59Z"},{"alias_kind":"pith_short_12","alias_value":"PMWCYVOBZYVM","created_at":"2026-05-18T12:27:18Z"},{"alias_kind":"pith_short_16","alias_value":"PMWCYVOBZYVMV2MK","created_at":"2026-05-18T12:27:18Z"},{"alias_kind":"pith_short_8","alias_value":"PMWCYVOB","created_at":"2026-05-18T12:27:18Z"}],"graph_snapshots":[{"event_id":"sha256:5af30e8540009ac7c5e9c619fba186b1121e07b48024bc4e3855875a55e36960","target":"graph","created_at":"2026-05-18T03:46:59Z","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 observed an aggregation of carbon or carbon derivatives on platinum and natively oxidized silicon surfaces during STM measurements in ultra-high vacuum on solvent-cleaned samples previously structured by e-beam lithography. We have imaged the aggregated layer with scanning tunneling microscopy (STM) as well as scanning electron microscopy (SEM). The amount of the aggregated material increases with the number of STM scans and with the tunneling voltage. Film thicknesses of up to 10 nm with five successive STM measurements have been obtained.","authors_text":"Dominik St\\\"offler, Hilbert von L\\\"ohneysen, Regina Hoffmann","cross_cats":["cond-mat.mtrl-sci"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2012-08-27T08:55:38Z","title":"STM-induced surface aggregates on metals and oxidized silicon"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1208.5336","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:e299ecc401e513c809428faef7f8b24a953602def2e840bdaed871c0fbfd1e47","target":"record","created_at":"2026-05-18T03:46:59Z","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":"81f5ba332a109d3c73acf1256f5ac8376f59b1ae56fa1dcd26cd6ecfa93a69ef","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2012-08-27T08:55:38Z","title_canon_sha256":"3a6e9d6e04322d80c44c1a89e039c2fb141246166603886cdbea07a08da0a565"},"schema_version":"1.0","source":{"id":"1208.5336","kind":"arxiv","version":1}},"canonical_sha256":"7b2c2c55c1ce2acae98a760d3cc2ebe34149a36a2629570e9fd2adc308952c2d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7b2c2c55c1ce2acae98a760d3cc2ebe34149a36a2629570e9fd2adc308952c2d","first_computed_at":"2026-05-18T03:46:59.733831Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:46:59.733831Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"UtK6V6KbbpBvhysJXwpJZqPWu57EnRPoukahy5aozNYOVu7mpp00fTg42qygxRPAXgSVLiK01Db4dpDLdhdhCw==","signature_status":"signed_v1","signed_at":"2026-05-18T03:46:59.734722Z","signed_message":"canonical_sha256_bytes"},"source_id":"1208.5336","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e299ecc401e513c809428faef7f8b24a953602def2e840bdaed871c0fbfd1e47","sha256:5af30e8540009ac7c5e9c619fba186b1121e07b48024bc4e3855875a55e36960"],"state_sha256":"4809d39d9acb8dcc78ef075e571c8f19862a45cef4b65de8b29d9ece8226a9c7"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qbzlOWQ6nOp1nrYCRezgLM7i8brhDq3zFWh7F7ldMi0zuzoEf1D+mS1ulwxo0yB79JCHAHkTLEvgzPw0qiYEAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T19:12:08.637676Z","bundle_sha256":"fc935b8b3079cbe0636d60687d740e36fc5827f234179fe0f0a141406e7b4d35"}}