{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:JX2R6UYITKR75FQHKLUMWRDKAM","short_pith_number":"pith:JX2R6UYI","canonical_record":{"source":{"id":"2001.04153","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"physics.app-ph","submitted_at":"2020-01-13T10:52:49Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"9c222e355363084303285735a73220b48ea9547df6625ecb4339480e8c1c3bea","abstract_canon_sha256":"d26acc150f64cb806cebbc1f9b1f8770ae88d559b2520eb4acc5a64c9c6137e3"},"schema_version":"1.0"},"canonical_sha256":"4df51f53089aa3fe960752e8cb446a0322c5c20c95719d33b37d50deecfbe866","source":{"kind":"arxiv","id":"2001.04153","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2001.04153","created_at":"2026-07-05T00:59:23Z"},{"alias_kind":"arxiv_version","alias_value":"2001.04153v1","created_at":"2026-07-05T00:59:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2001.04153","created_at":"2026-07-05T00:59:23Z"},{"alias_kind":"pith_short_12","alias_value":"JX2R6UYITKR7","created_at":"2026-07-05T00:59:23Z"},{"alias_kind":"pith_short_16","alias_value":"JX2R6UYITKR75FQH","created_at":"2026-07-05T00:59:23Z"},{"alias_kind":"pith_short_8","alias_value":"JX2R6UYI","created_at":"2026-07-05T00:59:23Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:JX2R6UYITKR75FQHKLUMWRDKAM","target":"record","payload":{"canonical_record":{"source":{"id":"2001.04153","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"physics.app-ph","submitted_at":"2020-01-13T10:52:49Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"9c222e355363084303285735a73220b48ea9547df6625ecb4339480e8c1c3bea","abstract_canon_sha256":"d26acc150f64cb806cebbc1f9b1f8770ae88d559b2520eb4acc5a64c9c6137e3"},"schema_version":"1.0"},"canonical_sha256":"4df51f53089aa3fe960752e8cb446a0322c5c20c95719d33b37d50deecfbe866","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:59:23.686605Z","signature_b64":"waNBYO2eO5HF9AB/Z1NNebN/Qof7BhZu+itaQXeTSeFwPnupKGkxF41QwVoPB5ot3Mq1kYd9Jg+4Yh6yBxjGAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4df51f53089aa3fe960752e8cb446a0322c5c20c95719d33b37d50deecfbe866","last_reissued_at":"2026-07-05T00:59:23.686178Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:59:23.686178Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2001.04153","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":"2026-07-05T00:59:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"omMEtehJUMnIu3wZJfyZ514i6x4a3D+GMdfBn5UbhndlPiB7wB3abgx5XqDCuEKzeZxVt6S4YDTZ2/sWA9M7CQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-17T14:03:32.132345Z"},"content_sha256":"23db242a479eca35c8d796214a35c689cf3f95fb8dd978c9b5a13d13b553d7e4","schema_version":"1.0","event_id":"sha256:23db242a479eca35c8d796214a35c689cf3f95fb8dd978c9b5a13d13b553d7e4"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:JX2R6UYITKR75FQHKLUMWRDKAM","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Using Cerenkov radiation for measuring the refractive index in thick samples by interferometric cathodoluminescence","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","headline":"","cross_cats":["cond-mat.mtrl-sci"],"primary_cat":"physics.app-ph","authors_text":"Kristyna Bukvisova, Michael St\\\"oger-Pollach, Niklas Maurer, Stefan L\\\"offler","submitted_at":"2020-01-13T10:52:49Z","abstract_excerpt":"Cathodoluminescence (CL) has evolved into a standard analytical technique in (scanning) transmission electron microscopy. CL utilizes light excited due to the interactions between the electron-beam and the sample. In the present study we focus on Cerenkov radiation. We make use of the fact that the electron transparent specimen acts as a Fabry-P\\'erot interferometer for coherently emitted radiation. From the wavelength dependent interference pattern of thickness dependent measurements we calculate the refractive index of the studied material. We describe the limits of this approach and compare"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2001.04153","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2001.04153/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":"2026-07-05T00:59:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KiTTHLUEwlwnIGWG+tmMFUrnAnP5O+fbG87Mod0r7MokA6JfoIV7fBN5ca7jyhRr9VNtpN7UO2XFBgy/5cMZDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-17T14:03:32.132736Z"},"content_sha256":"84ecf984d48e2ed841e34c840ddcf05e5c45a5c129a8cd52969d7b9694cc2157","schema_version":"1.0","event_id":"sha256:84ecf984d48e2ed841e34c840ddcf05e5c45a5c129a8cd52969d7b9694cc2157"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JX2R6UYITKR75FQHKLUMWRDKAM/bundle.json","state_url":"https://pith.science/pith/JX2R6UYITKR75FQHKLUMWRDKAM/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JX2R6UYITKR75FQHKLUMWRDKAM/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":"2026-08-17T14:03:32Z","links":{"resolver":"https://pith.science/pith/JX2R6UYITKR75FQHKLUMWRDKAM","bundle":"https://pith.science/pith/JX2R6UYITKR75FQHKLUMWRDKAM/bundle.json","state":"https://pith.science/pith/JX2R6UYITKR75FQHKLUMWRDKAM/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JX2R6UYITKR75FQHKLUMWRDKAM/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:JX2R6UYITKR75FQHKLUMWRDKAM","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":"d26acc150f64cb806cebbc1f9b1f8770ae88d559b2520eb4acc5a64c9c6137e3","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"physics.app-ph","submitted_at":"2020-01-13T10:52:49Z","title_canon_sha256":"9c222e355363084303285735a73220b48ea9547df6625ecb4339480e8c1c3bea"},"schema_version":"1.0","source":{"id":"2001.04153","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2001.04153","created_at":"2026-07-05T00:59:23Z"},{"alias_kind":"arxiv_version","alias_value":"2001.04153v1","created_at":"2026-07-05T00:59:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2001.04153","created_at":"2026-07-05T00:59:23Z"},{"alias_kind":"pith_short_12","alias_value":"JX2R6UYITKR7","created_at":"2026-07-05T00:59:23Z"},{"alias_kind":"pith_short_16","alias_value":"JX2R6UYITKR75FQH","created_at":"2026-07-05T00:59:23Z"},{"alias_kind":"pith_short_8","alias_value":"JX2R6UYI","created_at":"2026-07-05T00:59:23Z"}],"graph_snapshots":[{"event_id":"sha256:84ecf984d48e2ed841e34c840ddcf05e5c45a5c129a8cd52969d7b9694cc2157","target":"graph","created_at":"2026-07-05T00:59:23Z","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/2001.04153/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Cathodoluminescence (CL) has evolved into a standard analytical technique in (scanning) transmission electron microscopy. CL utilizes light excited due to the interactions between the electron-beam and the sample. In the present study we focus on Cerenkov radiation. We make use of the fact that the electron transparent specimen acts as a Fabry-P\\'erot interferometer for coherently emitted radiation. From the wavelength dependent interference pattern of thickness dependent measurements we calculate the refractive index of the studied material. We describe the limits of this approach and compare","authors_text":"Kristyna Bukvisova, Michael St\\\"oger-Pollach, Niklas Maurer, Stefan L\\\"offler","cross_cats":["cond-mat.mtrl-sci"],"headline":"","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"physics.app-ph","submitted_at":"2020-01-13T10:52:49Z","title":"Using Cerenkov radiation for measuring the refractive index in thick samples by interferometric cathodoluminescence"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2001.04153","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":"sha256:23db242a479eca35c8d796214a35c689cf3f95fb8dd978c9b5a13d13b553d7e4","target":"record","created_at":"2026-07-05T00:59:23Z","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":"d26acc150f64cb806cebbc1f9b1f8770ae88d559b2520eb4acc5a64c9c6137e3","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"physics.app-ph","submitted_at":"2020-01-13T10:52:49Z","title_canon_sha256":"9c222e355363084303285735a73220b48ea9547df6625ecb4339480e8c1c3bea"},"schema_version":"1.0","source":{"id":"2001.04153","kind":"arxiv","version":1}},"canonical_sha256":"4df51f53089aa3fe960752e8cb446a0322c5c20c95719d33b37d50deecfbe866","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4df51f53089aa3fe960752e8cb446a0322c5c20c95719d33b37d50deecfbe866","first_computed_at":"2026-07-05T00:59:23.686178Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:59:23.686178Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"waNBYO2eO5HF9AB/Z1NNebN/Qof7BhZu+itaQXeTSeFwPnupKGkxF41QwVoPB5ot3Mq1kYd9Jg+4Yh6yBxjGAg==","signature_status":"signed_v1","signed_at":"2026-07-05T00:59:23.686605Z","signed_message":"canonical_sha256_bytes"},"source_id":"2001.04153","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:23db242a479eca35c8d796214a35c689cf3f95fb8dd978c9b5a13d13b553d7e4","sha256:84ecf984d48e2ed841e34c840ddcf05e5c45a5c129a8cd52969d7b9694cc2157"],"state_sha256":"9d4b40975456557618fc2a8ba832f5b8ec7218627d17c2dce4f040ae408a0fdc"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"voWr9mVaSwxuo0okf1mct7Sfx80TnvRx8WiqSgtlhVC3t0iuaha9TIiWeZokcNgoXUAEl/HuT42b4mMKtXCuDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-17T14:03:32.135316Z","bundle_sha256":"44e9e2845e3c30901fb155cb84fbc598e09dbfa5a30f202a07ade64b7d5dea71"}}