{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:7M56IVDE52HIB7HAMK4N6G2J2G","short_pith_number":"pith:7M56IVDE","canonical_record":{"source":{"id":"1809.09872","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-09-26T09:41:33Z","cross_cats_sorted":[],"title_canon_sha256":"ae0b7417a2316ffc868db6ab6b3cba128dc4c8466606f8f33b19c0f5b20f2415","abstract_canon_sha256":"ded45a83e5f5ddb56d02d0ce1155631c55799f20af32589cd1ebe9eee7eb2a29"},"schema_version":"1.0"},"canonical_sha256":"fb3be45464ee8e80fce062b8df1b49d19dedd29ab183c44de964cb05283def43","source":{"kind":"arxiv","id":"1809.09872","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1809.09872","created_at":"2026-05-18T00:04:43Z"},{"alias_kind":"arxiv_version","alias_value":"1809.09872v1","created_at":"2026-05-18T00:04:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1809.09872","created_at":"2026-05-18T00:04:43Z"},{"alias_kind":"pith_short_12","alias_value":"7M56IVDE52HI","created_at":"2026-05-18T12:32:11Z"},{"alias_kind":"pith_short_16","alias_value":"7M56IVDE52HIB7HA","created_at":"2026-05-18T12:32:11Z"},{"alias_kind":"pith_short_8","alias_value":"7M56IVDE","created_at":"2026-05-18T12:32:11Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:7M56IVDE52HIB7HAMK4N6G2J2G","target":"record","payload":{"canonical_record":{"source":{"id":"1809.09872","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-09-26T09:41:33Z","cross_cats_sorted":[],"title_canon_sha256":"ae0b7417a2316ffc868db6ab6b3cba128dc4c8466606f8f33b19c0f5b20f2415","abstract_canon_sha256":"ded45a83e5f5ddb56d02d0ce1155631c55799f20af32589cd1ebe9eee7eb2a29"},"schema_version":"1.0"},"canonical_sha256":"fb3be45464ee8e80fce062b8df1b49d19dedd29ab183c44de964cb05283def43","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:04:43.409646Z","signature_b64":"8wDlVSsrvQK0J+Ho/E2BRuKmkdGz5wc4whncoFpaJ7tKabWJqe3iF4wSdFjzBfu5a4Z+lEDmxa6GVumIc1qvCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"fb3be45464ee8e80fce062b8df1b49d19dedd29ab183c44de964cb05283def43","last_reissued_at":"2026-05-18T00:04:43.409056Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:04:43.409056Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1809.09872","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":"2026-05-18T00:04:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"yhfntyvWWd8IyIVAE0Pmr0TUWjAx2tBnEC0+Pb8/JnsvhmjQXSw+IijoBpfDSvsxzTFt48ALDXccHDOF893OAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-23T17:58:12.647795Z"},"content_sha256":"96338b0c6b5d710bc7d89329e6443b225f77a8693f1d7536083ee77919060b45","schema_version":"1.0","event_id":"sha256:96338b0c6b5d710bc7d89329e6443b225f77a8693f1d7536083ee77919060b45"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:7M56IVDE52HIB7HAMK4N6G2J2G","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Nanoscale Intergranular Corrosion and Relation With Grain Boundary Character as Studied In Situ on Copper","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Kim Verbeken, Linsey Lapeire, Lorena H. Klein, Mohamed Bettayeb, Philippe Marcus, Vincent Maurice","submitted_at":"2018-09-26T09:41:33Z","abstract_excerpt":"The initiation of intergranular corrosion at various types of grain boundaries (GBs) was studied at the nanometer scale on microcrystalline copper in 1 mM HCl aqueous solution. In situ Electrochemical Scanning Tunneling Microscopy (ECSTM) and Electron Back-Scatter Diffraction analysis of the same local microstructural region were combined using an innovative methodology including micro marking performed with the STM tip. The results demonstrate that electrochemically-induced intergranular dissolution, at the surface termination of GBs, is dependent on the grain boundary character. It is found "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1809.09872","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":"2026-05-18T00:04:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"aGCV/w4lmIwBnzbSryawyOnU7m8AS8cfwgoRXZTwFo1PVxOv8d8Ek2/gV/NooANm/Xivrpd/PHHWUQkiZYVlDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-23T17:58:12.648467Z"},"content_sha256":"c728c20f6c094e8a32ee79192824d7686cbe4e2c64f28ca04aebf6d7cd3ee2b2","schema_version":"1.0","event_id":"sha256:c728c20f6c094e8a32ee79192824d7686cbe4e2c64f28ca04aebf6d7cd3ee2b2"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/7M56IVDE52HIB7HAMK4N6G2J2G/bundle.json","state_url":"https://pith.science/pith/7M56IVDE52HIB7HAMK4N6G2J2G/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/7M56IVDE52HIB7HAMK4N6G2J2G/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":"2026-05-23T17:58:12Z","links":{"resolver":"https://pith.science/pith/7M56IVDE52HIB7HAMK4N6G2J2G","bundle":"https://pith.science/pith/7M56IVDE52HIB7HAMK4N6G2J2G/bundle.json","state":"https://pith.science/pith/7M56IVDE52HIB7HAMK4N6G2J2G/state.json","well_known_bundle":"https://pith.science/.well-known/pith/7M56IVDE52HIB7HAMK4N6G2J2G/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:7M56IVDE52HIB7HAMK4N6G2J2G","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":"ded45a83e5f5ddb56d02d0ce1155631c55799f20af32589cd1ebe9eee7eb2a29","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-09-26T09:41:33Z","title_canon_sha256":"ae0b7417a2316ffc868db6ab6b3cba128dc4c8466606f8f33b19c0f5b20f2415"},"schema_version":"1.0","source":{"id":"1809.09872","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1809.09872","created_at":"2026-05-18T00:04:43Z"},{"alias_kind":"arxiv_version","alias_value":"1809.09872v1","created_at":"2026-05-18T00:04:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1809.09872","created_at":"2026-05-18T00:04:43Z"},{"alias_kind":"pith_short_12","alias_value":"7M56IVDE52HI","created_at":"2026-05-18T12:32:11Z"},{"alias_kind":"pith_short_16","alias_value":"7M56IVDE52HIB7HA","created_at":"2026-05-18T12:32:11Z"},{"alias_kind":"pith_short_8","alias_value":"7M56IVDE","created_at":"2026-05-18T12:32:11Z"}],"graph_snapshots":[{"event_id":"sha256:c728c20f6c094e8a32ee79192824d7686cbe4e2c64f28ca04aebf6d7cd3ee2b2","target":"graph","created_at":"2026-05-18T00:04:43Z","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":"The initiation of intergranular corrosion at various types of grain boundaries (GBs) was studied at the nanometer scale on microcrystalline copper in 1 mM HCl aqueous solution. In situ Electrochemical Scanning Tunneling Microscopy (ECSTM) and Electron Back-Scatter Diffraction analysis of the same local microstructural region were combined using an innovative methodology including micro marking performed with the STM tip. The results demonstrate that electrochemically-induced intergranular dissolution, at the surface termination of GBs, is dependent on the grain boundary character. It is found ","authors_text":"Kim Verbeken, Linsey Lapeire, Lorena H. Klein, Mohamed Bettayeb, Philippe Marcus, Vincent Maurice","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-09-26T09:41:33Z","title":"Nanoscale Intergranular Corrosion and Relation With Grain Boundary Character as Studied In Situ on Copper"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1809.09872","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":"sha256:96338b0c6b5d710bc7d89329e6443b225f77a8693f1d7536083ee77919060b45","target":"record","created_at":"2026-05-18T00:04:43Z","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":"ded45a83e5f5ddb56d02d0ce1155631c55799f20af32589cd1ebe9eee7eb2a29","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-09-26T09:41:33Z","title_canon_sha256":"ae0b7417a2316ffc868db6ab6b3cba128dc4c8466606f8f33b19c0f5b20f2415"},"schema_version":"1.0","source":{"id":"1809.09872","kind":"arxiv","version":1}},"canonical_sha256":"fb3be45464ee8e80fce062b8df1b49d19dedd29ab183c44de964cb05283def43","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"fb3be45464ee8e80fce062b8df1b49d19dedd29ab183c44de964cb05283def43","first_computed_at":"2026-05-18T00:04:43.409056Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:04:43.409056Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"8wDlVSsrvQK0J+Ho/E2BRuKmkdGz5wc4whncoFpaJ7tKabWJqe3iF4wSdFjzBfu5a4Z+lEDmxa6GVumIc1qvCw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:04:43.409646Z","signed_message":"canonical_sha256_bytes"},"source_id":"1809.09872","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:96338b0c6b5d710bc7d89329e6443b225f77a8693f1d7536083ee77919060b45","sha256:c728c20f6c094e8a32ee79192824d7686cbe4e2c64f28ca04aebf6d7cd3ee2b2"],"state_sha256":"a0b089b5c5f6fcd654d704a5da64f8e79734f8bb29680ab88bec2fb7ce3ab494"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2u8cunArAUeZI7luuoFlF3W6grfC2qw+q4M9VUFMYL1bb39xeSoS3nJCSpumar1Nq/87JynkRYsSCcZOUSsjBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-23T17:58:12.653936Z","bundle_sha256":"58e90be698c242523666b08c31538a1b129b66bc841617086996d7ca7b8aab86"}}