{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:OTDZI5DEYWRESU5FVOAKTDXWUJ","short_pith_number":"pith:OTDZI5DE","canonical_record":{"source":{"id":"2502.07338","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2025-02-11T08:01:02Z","cross_cats_sorted":["physics.ins-det"],"title_canon_sha256":"6f82bd4af0633fe86ed60d7d9f2bebf7089d7c636ac6213689ab7cf816cca4bb","abstract_canon_sha256":"0f249fdbb6a565b7e05a68b004f1d4cb0ffc65d3370f99cfc7382e0eae313425"},"schema_version":"1.0"},"canonical_sha256":"74c7947464c5a24953a5ab80a98ef6a26626c9c11ebe8e6badec9889d8f46ccb","source":{"kind":"arxiv","id":"2502.07338","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2502.07338","created_at":"2026-07-05T12:03:45Z"},{"alias_kind":"arxiv_version","alias_value":"2502.07338v2","created_at":"2026-07-05T12:03:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2502.07338","created_at":"2026-07-05T12:03:45Z"},{"alias_kind":"pith_short_12","alias_value":"OTDZI5DEYWRE","created_at":"2026-07-05T12:03:45Z"},{"alias_kind":"pith_short_16","alias_value":"OTDZI5DEYWRESU5F","created_at":"2026-07-05T12:03:45Z"},{"alias_kind":"pith_short_8","alias_value":"OTDZI5DE","created_at":"2026-07-05T12:03:45Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:OTDZI5DEYWRESU5FVOAKTDXWUJ","target":"record","payload":{"canonical_record":{"source":{"id":"2502.07338","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2025-02-11T08:01:02Z","cross_cats_sorted":["physics.ins-det"],"title_canon_sha256":"6f82bd4af0633fe86ed60d7d9f2bebf7089d7c636ac6213689ab7cf816cca4bb","abstract_canon_sha256":"0f249fdbb6a565b7e05a68b004f1d4cb0ffc65d3370f99cfc7382e0eae313425"},"schema_version":"1.0"},"canonical_sha256":"74c7947464c5a24953a5ab80a98ef6a26626c9c11ebe8e6badec9889d8f46ccb","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T12:03:45.650701Z","signature_b64":"nL9593TmJBk8YP0xz46HG8xdjScihacD5n8OGgCuF4+DkN2r1wHT/I5QGYLbZ+mUCCkbxpcxnmFcpkmrw7LVBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"74c7947464c5a24953a5ab80a98ef6a26626c9c11ebe8e6badec9889d8f46ccb","last_reissued_at":"2026-07-05T12:03:45.650161Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T12:03:45.650161Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2502.07338","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T12:03:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rzC+Id6+md5ufOFC062v/GSxrLVqnAMPn8wOCi3fRJujcyE0QrKdrTMz0VNw3ngYNLHlses7o/zhpOS5ysEcDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T16:07:54.569571Z"},"content_sha256":"09a2bbaa240fd490d9b24e0c3b0fb0484d1a13fce4c7061f847cf4ce8908c1d6","schema_version":"1.0","event_id":"sha256:09a2bbaa240fd490d9b24e0c3b0fb0484d1a13fce4c7061f847cf4ce8908c1d6"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:OTDZI5DEYWRESU5FVOAKTDXWUJ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Ultrafast 4D scanning transmission electron microscopy for imaging of localized optical fields","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["physics.ins-det"],"primary_cat":"physics.optics","authors_text":"Alexandr Kn\\'apek, Daniel Burda, Kamila Moriov\\'a, Marius Constantin Chirita Mihaila, Martin Koz\\'ak, Neli La\\v{s}tovi\\v{c}kov\\'a Streshkova, Petr Koutensk\\'y","submitted_at":"2025-02-11T08:01:02Z","abstract_excerpt":"Ultrafast electron microscopy aims for imaging transient phenomena occurring on nanoscale. One of its goals is to visualize localized optical and plasmonic modes generated by coherent excitation in the vicinity of various types of nanostructures. Such imaging capability was enabled by photoninduced near-field optical microscopy, which is based on spectral filtering of electrons inelastically scattered due to the stimulated interaction with the nearfield. Here, we report on the development of ultrafast four-dimensional (4D) scanning transmission electron microscopy, which allows us to image the"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2502.07338","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2502.07338/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T12:03:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mYvu3GkVcd9aGIaw7XaaFE/06Qk2Hwqs/zCUybbORWQpzMtzOUljxa4R7ZtabyGKvrw0ANtEHikXCzaBFjaaDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T16:07:54.570725Z"},"content_sha256":"881ce23d83da6eb7e8c57eda31e4b6b304b5fb61121dde0168ed9b8f20e75a31","schema_version":"1.0","event_id":"sha256:881ce23d83da6eb7e8c57eda31e4b6b304b5fb61121dde0168ed9b8f20e75a31"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/OTDZI5DEYWRESU5FVOAKTDXWUJ/bundle.json","state_url":"https://pith.science/pith/OTDZI5DEYWRESU5FVOAKTDXWUJ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/OTDZI5DEYWRESU5FVOAKTDXWUJ/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":"2026-08-06T16:07:54Z","links":{"resolver":"https://pith.science/pith/OTDZI5DEYWRESU5FVOAKTDXWUJ","bundle":"https://pith.science/pith/OTDZI5DEYWRESU5FVOAKTDXWUJ/bundle.json","state":"https://pith.science/pith/OTDZI5DEYWRESU5FVOAKTDXWUJ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/OTDZI5DEYWRESU5FVOAKTDXWUJ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:OTDZI5DEYWRESU5FVOAKTDXWUJ","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":"0f249fdbb6a565b7e05a68b004f1d4cb0ffc65d3370f99cfc7382e0eae313425","cross_cats_sorted":["physics.ins-det"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2025-02-11T08:01:02Z","title_canon_sha256":"6f82bd4af0633fe86ed60d7d9f2bebf7089d7c636ac6213689ab7cf816cca4bb"},"schema_version":"1.0","source":{"id":"2502.07338","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2502.07338","created_at":"2026-07-05T12:03:45Z"},{"alias_kind":"arxiv_version","alias_value":"2502.07338v2","created_at":"2026-07-05T12:03:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2502.07338","created_at":"2026-07-05T12:03:45Z"},{"alias_kind":"pith_short_12","alias_value":"OTDZI5DEYWRE","created_at":"2026-07-05T12:03:45Z"},{"alias_kind":"pith_short_16","alias_value":"OTDZI5DEYWRESU5F","created_at":"2026-07-05T12:03:45Z"},{"alias_kind":"pith_short_8","alias_value":"OTDZI5DE","created_at":"2026-07-05T12:03:45Z"}],"graph_snapshots":[{"event_id":"sha256:881ce23d83da6eb7e8c57eda31e4b6b304b5fb61121dde0168ed9b8f20e75a31","target":"graph","created_at":"2026-07-05T12:03:45Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2502.07338/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Ultrafast electron microscopy aims for imaging transient phenomena occurring on nanoscale. One of its goals is to visualize localized optical and plasmonic modes generated by coherent excitation in the vicinity of various types of nanostructures. Such imaging capability was enabled by photoninduced near-field optical microscopy, which is based on spectral filtering of electrons inelastically scattered due to the stimulated interaction with the nearfield. Here, we report on the development of ultrafast four-dimensional (4D) scanning transmission electron microscopy, which allows us to image the","authors_text":"Alexandr Kn\\'apek, Daniel Burda, Kamila Moriov\\'a, Marius Constantin Chirita Mihaila, Martin Koz\\'ak, Neli La\\v{s}tovi\\v{c}kov\\'a Streshkova, Petr Koutensk\\'y","cross_cats":["physics.ins-det"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2025-02-11T08:01:02Z","title":"Ultrafast 4D scanning transmission electron microscopy for imaging of localized optical fields"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2502.07338","kind":"arxiv","version":2},"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":"sha256:09a2bbaa240fd490d9b24e0c3b0fb0484d1a13fce4c7061f847cf4ce8908c1d6","target":"record","created_at":"2026-07-05T12:03:45Z","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":"0f249fdbb6a565b7e05a68b004f1d4cb0ffc65d3370f99cfc7382e0eae313425","cross_cats_sorted":["physics.ins-det"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2025-02-11T08:01:02Z","title_canon_sha256":"6f82bd4af0633fe86ed60d7d9f2bebf7089d7c636ac6213689ab7cf816cca4bb"},"schema_version":"1.0","source":{"id":"2502.07338","kind":"arxiv","version":2}},"canonical_sha256":"74c7947464c5a24953a5ab80a98ef6a26626c9c11ebe8e6badec9889d8f46ccb","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"74c7947464c5a24953a5ab80a98ef6a26626c9c11ebe8e6badec9889d8f46ccb","first_computed_at":"2026-07-05T12:03:45.650161Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T12:03:45.650161Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"nL9593TmJBk8YP0xz46HG8xdjScihacD5n8OGgCuF4+DkN2r1wHT/I5QGYLbZ+mUCCkbxpcxnmFcpkmrw7LVBA==","signature_status":"signed_v1","signed_at":"2026-07-05T12:03:45.650701Z","signed_message":"canonical_sha256_bytes"},"source_id":"2502.07338","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:09a2bbaa240fd490d9b24e0c3b0fb0484d1a13fce4c7061f847cf4ce8908c1d6","sha256:881ce23d83da6eb7e8c57eda31e4b6b304b5fb61121dde0168ed9b8f20e75a31"],"state_sha256":"42d372bdcf1be3af5db2518e79aca054f2ced253f13d5446820924bab225d902"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CI9cQtZVMg6EVmqusGJFACJSasyLwreQ3nKOfFody+1j8cXsbPpI8MX1Kay4J9CJPaKMYjaC3nHcebj4xmW9DQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-06T16:07:54.581300Z","bundle_sha256":"004e0e58dc18da9107428491f28f945c1970b8b069f3f38b6f7fb8f8a99eb6c5"}}