{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:GUH4SOR7LDN7DJNWY66IGXWNGZ","short_pith_number":"pith:GUH4SOR7","canonical_record":{"source":{"id":"1811.04266","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-11-10T15:14:24Z","cross_cats_sorted":[],"title_canon_sha256":"89396c8971ca16719c90bfbd0c13a772199ef23d275ce41b902239f680457ab0","abstract_canon_sha256":"8eaf36212c644bcae750abdce2455f7463ac9b73f5b61489667426cd03a90528"},"schema_version":"1.0"},"canonical_sha256":"350fc93a3f58dbf1a5b6c7bc835ecd3677fa2fdc6baac15c694baa114e8507a1","source":{"kind":"arxiv","id":"1811.04266","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1811.04266","created_at":"2026-05-17T23:55:38Z"},{"alias_kind":"arxiv_version","alias_value":"1811.04266v3","created_at":"2026-05-17T23:55:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1811.04266","created_at":"2026-05-17T23:55:38Z"},{"alias_kind":"pith_short_12","alias_value":"GUH4SOR7LDN7","created_at":"2026-05-18T12:32:25Z"},{"alias_kind":"pith_short_16","alias_value":"GUH4SOR7LDN7DJNW","created_at":"2026-05-18T12:32:25Z"},{"alias_kind":"pith_short_8","alias_value":"GUH4SOR7","created_at":"2026-05-18T12:32:25Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:GUH4SOR7LDN7DJNWY66IGXWNGZ","target":"record","payload":{"canonical_record":{"source":{"id":"1811.04266","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-11-10T15:14:24Z","cross_cats_sorted":[],"title_canon_sha256":"89396c8971ca16719c90bfbd0c13a772199ef23d275ce41b902239f680457ab0","abstract_canon_sha256":"8eaf36212c644bcae750abdce2455f7463ac9b73f5b61489667426cd03a90528"},"schema_version":"1.0"},"canonical_sha256":"350fc93a3f58dbf1a5b6c7bc835ecd3677fa2fdc6baac15c694baa114e8507a1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:55:38.263355Z","signature_b64":"BIeuESHyeF6EaUHBgY42ydYRcvPRz8jy5vqzSfjO8DuUzBOQ4mnL/cL0oP4mtIngnIzMtXQWoN+gzfrIEjXMDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"350fc93a3f58dbf1a5b6c7bc835ecd3677fa2fdc6baac15c694baa114e8507a1","last_reissued_at":"2026-05-17T23:55:38.262967Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:55:38.262967Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1811.04266","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-17T23:55:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BIJXQc4pUaAcXE3OuJeX5pzemdS77aeFTP7lDi2eKa8Po8m1s6mysW7OjbAn2UpMbb8UM+YX8KDe8QqIX+HMDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T21:19:09.204814Z"},"content_sha256":"5da2e4f2077502675c3d2c42329ba330492c1adf67c09c184440f081655927dc","schema_version":"1.0","event_id":"sha256:5da2e4f2077502675c3d2c42329ba330492c1adf67c09c184440f081655927dc"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:GUH4SOR7LDN7DJNWY66IGXWNGZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Scanning transmission electron microscopy under controlled low-pressure atmospheres","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"Clemens Mangler, Gregor T. Leuthner, Jani Kotakoski, Jannik C. Meyer, Stefan Hummel, Timothy J. Pennycook, Toma Susi","submitted_at":"2018-11-10T15:14:24Z","abstract_excerpt":"Transmission electron microscopy (TEM) is carried out in vacuum to minimize the interaction of the imaging electrons with gas molecules while passing through the microscope column. Nevertheless, in typical devices, the pressure remains at 10^-7 mbar or above, providing a large number of gas molecules for the electron beam to crack, which can lead to structural changes in the sample. Here, we describe experiments carried out in a modified scanning TEM (STEM) instrument, based on the Nion UltraSTEM 100. In this instrument, the base pressure at the sample is around 2x10^-10 mbar, and can be varie"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1811.04266","kind":"arxiv","version":3},"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":"2026-05-17T23:55:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"aEVC4V9+ooLVs+dEHEWGWVR4DwbWowuvW1TRBpx2oN2vMm1bJJcJg0LGhX307BHjVqyVDqO+GiiLpRcih8YiCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T21:19:09.205541Z"},"content_sha256":"cbaf7a6d63aeebfe7abaa42fb8790f662cd6fda2b84ebc8dfbc47d35d0da7e9d","schema_version":"1.0","event_id":"sha256:cbaf7a6d63aeebfe7abaa42fb8790f662cd6fda2b84ebc8dfbc47d35d0da7e9d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/GUH4SOR7LDN7DJNWY66IGXWNGZ/bundle.json","state_url":"https://pith.science/pith/GUH4SOR7LDN7DJNWY66IGXWNGZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/GUH4SOR7LDN7DJNWY66IGXWNGZ/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":"2026-05-25T21:19:09Z","links":{"resolver":"https://pith.science/pith/GUH4SOR7LDN7DJNWY66IGXWNGZ","bundle":"https://pith.science/pith/GUH4SOR7LDN7DJNWY66IGXWNGZ/bundle.json","state":"https://pith.science/pith/GUH4SOR7LDN7DJNWY66IGXWNGZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/GUH4SOR7LDN7DJNWY66IGXWNGZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:GUH4SOR7LDN7DJNWY66IGXWNGZ","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":"8eaf36212c644bcae750abdce2455f7463ac9b73f5b61489667426cd03a90528","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-11-10T15:14:24Z","title_canon_sha256":"89396c8971ca16719c90bfbd0c13a772199ef23d275ce41b902239f680457ab0"},"schema_version":"1.0","source":{"id":"1811.04266","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1811.04266","created_at":"2026-05-17T23:55:38Z"},{"alias_kind":"arxiv_version","alias_value":"1811.04266v3","created_at":"2026-05-17T23:55:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1811.04266","created_at":"2026-05-17T23:55:38Z"},{"alias_kind":"pith_short_12","alias_value":"GUH4SOR7LDN7","created_at":"2026-05-18T12:32:25Z"},{"alias_kind":"pith_short_16","alias_value":"GUH4SOR7LDN7DJNW","created_at":"2026-05-18T12:32:25Z"},{"alias_kind":"pith_short_8","alias_value":"GUH4SOR7","created_at":"2026-05-18T12:32:25Z"}],"graph_snapshots":[{"event_id":"sha256:cbaf7a6d63aeebfe7abaa42fb8790f662cd6fda2b84ebc8dfbc47d35d0da7e9d","target":"graph","created_at":"2026-05-17T23:55:38Z","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":"Transmission electron microscopy (TEM) is carried out in vacuum to minimize the interaction of the imaging electrons with gas molecules while passing through the microscope column. Nevertheless, in typical devices, the pressure remains at 10^-7 mbar or above, providing a large number of gas molecules for the electron beam to crack, which can lead to structural changes in the sample. Here, we describe experiments carried out in a modified scanning TEM (STEM) instrument, based on the Nion UltraSTEM 100. In this instrument, the base pressure at the sample is around 2x10^-10 mbar, and can be varie","authors_text":"Clemens Mangler, Gregor T. Leuthner, Jani Kotakoski, Jannik C. Meyer, Stefan Hummel, Timothy J. Pennycook, Toma Susi","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-11-10T15:14:24Z","title":"Scanning transmission electron microscopy under controlled low-pressure atmospheres"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1811.04266","kind":"arxiv","version":3},"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":"sha256:5da2e4f2077502675c3d2c42329ba330492c1adf67c09c184440f081655927dc","target":"record","created_at":"2026-05-17T23:55:38Z","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":"8eaf36212c644bcae750abdce2455f7463ac9b73f5b61489667426cd03a90528","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-11-10T15:14:24Z","title_canon_sha256":"89396c8971ca16719c90bfbd0c13a772199ef23d275ce41b902239f680457ab0"},"schema_version":"1.0","source":{"id":"1811.04266","kind":"arxiv","version":3}},"canonical_sha256":"350fc93a3f58dbf1a5b6c7bc835ecd3677fa2fdc6baac15c694baa114e8507a1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"350fc93a3f58dbf1a5b6c7bc835ecd3677fa2fdc6baac15c694baa114e8507a1","first_computed_at":"2026-05-17T23:55:38.262967Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:55:38.262967Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"BIeuESHyeF6EaUHBgY42ydYRcvPRz8jy5vqzSfjO8DuUzBOQ4mnL/cL0oP4mtIngnIzMtXQWoN+gzfrIEjXMDw==","signature_status":"signed_v1","signed_at":"2026-05-17T23:55:38.263355Z","signed_message":"canonical_sha256_bytes"},"source_id":"1811.04266","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5da2e4f2077502675c3d2c42329ba330492c1adf67c09c184440f081655927dc","sha256:cbaf7a6d63aeebfe7abaa42fb8790f662cd6fda2b84ebc8dfbc47d35d0da7e9d"],"state_sha256":"78d29c7e7222f6bae233ebf9d35f7ed5064c468c4476ebe610fc74f54171de47"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"W6LiRjqW4iS7mR5DFfhwAXe8Du0BOqZ3OFtGUF3UtbSVXHNt5L+5BUfQ2EOFncvrn9oU67MDsagoEQkd2Rr9Dw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T21:19:09.209710Z","bundle_sha256":"3b8e269d3327df7049327342a10e0de2f5ba4bf44c88daf7f0573cb861341897"}}