{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:2EPGPPHZDI27ZBTZ3IGHKD4YNQ","short_pith_number":"pith:2EPGPPHZ","canonical_record":{"source":{"id":"1212.2570","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2012-12-11T18:13:02Z","cross_cats_sorted":["cond-mat.mtrl-sci","cond-mat.stat-mech"],"title_canon_sha256":"0eb9f609737f661bfd4f88f1480f604ec9905d81f340927eb907ccd5a4dcc445","abstract_canon_sha256":"5de4cf770394cb3612d786a73347774ff23b885123b737000399fe0221eacd5b"},"schema_version":"1.0"},"canonical_sha256":"d11e67bcf91a35fc8679da0c750f986c3a589119491303ae8fb76426b2ee421e","source":{"kind":"arxiv","id":"1212.2570","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1212.2570","created_at":"2026-05-18T01:52:39Z"},{"alias_kind":"arxiv_version","alias_value":"1212.2570v1","created_at":"2026-05-18T01:52:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1212.2570","created_at":"2026-05-18T01:52:39Z"},{"alias_kind":"pith_short_12","alias_value":"2EPGPPHZDI27","created_at":"2026-05-18T12:26:50Z"},{"alias_kind":"pith_short_16","alias_value":"2EPGPPHZDI27ZBTZ","created_at":"2026-05-18T12:26:50Z"},{"alias_kind":"pith_short_8","alias_value":"2EPGPPHZ","created_at":"2026-05-18T12:26:50Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:2EPGPPHZDI27ZBTZ3IGHKD4YNQ","target":"record","payload":{"canonical_record":{"source":{"id":"1212.2570","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2012-12-11T18:13:02Z","cross_cats_sorted":["cond-mat.mtrl-sci","cond-mat.stat-mech"],"title_canon_sha256":"0eb9f609737f661bfd4f88f1480f604ec9905d81f340927eb907ccd5a4dcc445","abstract_canon_sha256":"5de4cf770394cb3612d786a73347774ff23b885123b737000399fe0221eacd5b"},"schema_version":"1.0"},"canonical_sha256":"d11e67bcf91a35fc8679da0c750f986c3a589119491303ae8fb76426b2ee421e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:52:39.971363Z","signature_b64":"de+jZ+aI2hELdOmd0K2pbDFGD2bRO9TyiXmq064aFiZuiiDXz2sEgdplBcFj1RpxK3F3lqXTemUdWsRpac4IBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d11e67bcf91a35fc8679da0c750f986c3a589119491303ae8fb76426b2ee421e","last_reissued_at":"2026-05-18T01:52:39.970783Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:52:39.970783Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1212.2570","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":"2026-05-18T01:52:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6r6hQ+szznhndTPMUmXSQGTv8uUchtN/jutwyJhSdLVd6au6L3SnNVcHdSvocgC6ceVTzEjKkAPov5P9W3bOBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T01:32:36.866389Z"},"content_sha256":"037b87d1404a17813fef749eb6dd9f94804ff3a193352d632681d6d75703ce01","schema_version":"1.0","event_id":"sha256:037b87d1404a17813fef749eb6dd9f94804ff3a193352d632681d6d75703ce01"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:2EPGPPHZDI27ZBTZ3IGHKD4YNQ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Determining molecule diffusion coefficients on surfaces from a locally fixed probe: On the analysis of signal fluctuations","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci","cond-mat.stat-mech"],"primary_cat":"cond-mat.mes-hall","authors_text":"Julian Ikonomov, Moritz Sokolowski, Philipp Maass, Susanne Hahne","submitted_at":"2012-12-11T18:13:02Z","abstract_excerpt":"Methods of determining surface diffusion coefficients of molecules from signal fluctuations of a locally fixed probe are revisited and refined. Particular emphasis is put on the influence of the molecule's extent. In addition to the formerly introduced autocorrelation method and residence time method, we develop a further method based on the distribution of intervals between successive peaks in the signal. The theoretical findings are applied to STM measurements of copper phthalocyanine (CuPc) molecules on the Ag(100) surface. We discuss advantages and disadvantages of each method and suggest "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1212.2570","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":"2026-05-18T01:52:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/9YcvkHuQKQNqEmJ1TeSQFrLxAPtk+PSFoiXanDJar4bE0XOHxMjMAldgtZiIM0qPhIjav1NXo/mLbGSb1OECQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T01:32:36.866755Z"},"content_sha256":"7af7e00a959395f0944389e62d73e9726ed0680e5fd6c78084c3805d153b4850","schema_version":"1.0","event_id":"sha256:7af7e00a959395f0944389e62d73e9726ed0680e5fd6c78084c3805d153b4850"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2EPGPPHZDI27ZBTZ3IGHKD4YNQ/bundle.json","state_url":"https://pith.science/pith/2EPGPPHZDI27ZBTZ3IGHKD4YNQ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2EPGPPHZDI27ZBTZ3IGHKD4YNQ/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":"2026-06-03T01:32:36Z","links":{"resolver":"https://pith.science/pith/2EPGPPHZDI27ZBTZ3IGHKD4YNQ","bundle":"https://pith.science/pith/2EPGPPHZDI27ZBTZ3IGHKD4YNQ/bundle.json","state":"https://pith.science/pith/2EPGPPHZDI27ZBTZ3IGHKD4YNQ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2EPGPPHZDI27ZBTZ3IGHKD4YNQ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:2EPGPPHZDI27ZBTZ3IGHKD4YNQ","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":"5de4cf770394cb3612d786a73347774ff23b885123b737000399fe0221eacd5b","cross_cats_sorted":["cond-mat.mtrl-sci","cond-mat.stat-mech"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2012-12-11T18:13:02Z","title_canon_sha256":"0eb9f609737f661bfd4f88f1480f604ec9905d81f340927eb907ccd5a4dcc445"},"schema_version":"1.0","source":{"id":"1212.2570","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1212.2570","created_at":"2026-05-18T01:52:39Z"},{"alias_kind":"arxiv_version","alias_value":"1212.2570v1","created_at":"2026-05-18T01:52:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1212.2570","created_at":"2026-05-18T01:52:39Z"},{"alias_kind":"pith_short_12","alias_value":"2EPGPPHZDI27","created_at":"2026-05-18T12:26:50Z"},{"alias_kind":"pith_short_16","alias_value":"2EPGPPHZDI27ZBTZ","created_at":"2026-05-18T12:26:50Z"},{"alias_kind":"pith_short_8","alias_value":"2EPGPPHZ","created_at":"2026-05-18T12:26:50Z"}],"graph_snapshots":[{"event_id":"sha256:7af7e00a959395f0944389e62d73e9726ed0680e5fd6c78084c3805d153b4850","target":"graph","created_at":"2026-05-18T01:52:39Z","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":"Methods of determining surface diffusion coefficients of molecules from signal fluctuations of a locally fixed probe are revisited and refined. Particular emphasis is put on the influence of the molecule's extent. In addition to the formerly introduced autocorrelation method and residence time method, we develop a further method based on the distribution of intervals between successive peaks in the signal. The theoretical findings are applied to STM measurements of copper phthalocyanine (CuPc) molecules on the Ag(100) surface. We discuss advantages and disadvantages of each method and suggest ","authors_text":"Julian Ikonomov, Moritz Sokolowski, Philipp Maass, Susanne Hahne","cross_cats":["cond-mat.mtrl-sci","cond-mat.stat-mech"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2012-12-11T18:13:02Z","title":"Determining molecule diffusion coefficients on surfaces from a locally fixed probe: On the analysis of signal fluctuations"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1212.2570","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":"sha256:037b87d1404a17813fef749eb6dd9f94804ff3a193352d632681d6d75703ce01","target":"record","created_at":"2026-05-18T01:52:39Z","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":"5de4cf770394cb3612d786a73347774ff23b885123b737000399fe0221eacd5b","cross_cats_sorted":["cond-mat.mtrl-sci","cond-mat.stat-mech"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2012-12-11T18:13:02Z","title_canon_sha256":"0eb9f609737f661bfd4f88f1480f604ec9905d81f340927eb907ccd5a4dcc445"},"schema_version":"1.0","source":{"id":"1212.2570","kind":"arxiv","version":1}},"canonical_sha256":"d11e67bcf91a35fc8679da0c750f986c3a589119491303ae8fb76426b2ee421e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d11e67bcf91a35fc8679da0c750f986c3a589119491303ae8fb76426b2ee421e","first_computed_at":"2026-05-18T01:52:39.970783Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:52:39.970783Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"de+jZ+aI2hELdOmd0K2pbDFGD2bRO9TyiXmq064aFiZuiiDXz2sEgdplBcFj1RpxK3F3lqXTemUdWsRpac4IBw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:52:39.971363Z","signed_message":"canonical_sha256_bytes"},"source_id":"1212.2570","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:037b87d1404a17813fef749eb6dd9f94804ff3a193352d632681d6d75703ce01","sha256:7af7e00a959395f0944389e62d73e9726ed0680e5fd6c78084c3805d153b4850"],"state_sha256":"bbfb71d4f5d39c29040b6cfbfe7b444853635d2ca6fcf0c8243a25b2b1c84937"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"GPSntlY3JKK0hx+AwoqL6+r/sknt+9dew60Mzcuv6aOd59aj14LkWtRVgYIbATuhfd5mYw2DjmoMN1M06zXUCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T01:32:36.868845Z","bundle_sha256":"f73d69ba06a9387901ad60456ec36f48d120832052ae9cfc1f7d2d4bb90c1f28"}}