{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:FMM3FA3J4JLXDTBEXVOIUQMUWT","short_pith_number":"pith:FMM3FA3J","canonical_record":{"source":{"id":"2204.02669","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2022-04-06T08:37:26Z","cross_cats_sorted":["physics.ins-det"],"title_canon_sha256":"f8817082a5d0c32cd9304b337cde7187c86ecc2076fa730c76db287273365bf4","abstract_canon_sha256":"a66a84c9b165a9eaea3a55a407978570abfbd6afb81b24d56283af14fc362b45"},"schema_version":"1.0"},"canonical_sha256":"2b19b28369e25771cc24bd5c8a4194b4c17af402ba5c1ac5f14bb4be8858b94d","source":{"kind":"arxiv","id":"2204.02669","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2204.02669","created_at":"2026-07-05T11:30:59Z"},{"alias_kind":"arxiv_version","alias_value":"2204.02669v1","created_at":"2026-07-05T11:30:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2204.02669","created_at":"2026-07-05T11:30:59Z"},{"alias_kind":"pith_short_12","alias_value":"FMM3FA3J4JLX","created_at":"2026-07-05T11:30:59Z"},{"alias_kind":"pith_short_16","alias_value":"FMM3FA3J4JLXDTBE","created_at":"2026-07-05T11:30:59Z"},{"alias_kind":"pith_short_8","alias_value":"FMM3FA3J","created_at":"2026-07-05T11:30:59Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:FMM3FA3J4JLXDTBEXVOIUQMUWT","target":"record","payload":{"canonical_record":{"source":{"id":"2204.02669","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2022-04-06T08:37:26Z","cross_cats_sorted":["physics.ins-det"],"title_canon_sha256":"f8817082a5d0c32cd9304b337cde7187c86ecc2076fa730c76db287273365bf4","abstract_canon_sha256":"a66a84c9b165a9eaea3a55a407978570abfbd6afb81b24d56283af14fc362b45"},"schema_version":"1.0"},"canonical_sha256":"2b19b28369e25771cc24bd5c8a4194b4c17af402ba5c1ac5f14bb4be8858b94d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:30:59.654578Z","signature_b64":"GjYnPKIfBTJbBgw9VEA9u1n3bcs6ayXAne3Ezm3O6MY1f60mPFc36raULWgg399pdVHDoPrPZqvr9Dca9aJsAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2b19b28369e25771cc24bd5c8a4194b4c17af402ba5c1ac5f14bb4be8858b94d","last_reissued_at":"2026-07-05T11:30:59.653957Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:30:59.653957Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2204.02669","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":"2026-07-05T11:30:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JflK2K+3MroYtZcwQg2yqZo+zeit2a0gMqrSNFZnUPqQ/JvwF6CqvyxHxhysHEXnK6Sl1jbBgjPokPLxSYIBDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-23T17:05:56.697642Z"},"content_sha256":"7bd8fd2b6b4ace0f0aa7d16651a7de5cbaab9f82102c0db5db954e96cdcbcc1a","schema_version":"1.0","event_id":"sha256:7bd8fd2b6b4ace0f0aa7d16651a7de5cbaab9f82102c0db5db954e96cdcbcc1a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:FMM3FA3J4JLXDTBEXVOIUQMUWT","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Deep learning-based single-shot computational spectrometer using multilayer thin films","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["physics.ins-det"],"primary_cat":"physics.optics","authors_text":"Cheolsun Kim, Dongju Park, Heung-No Lee, Jioh Lee","submitted_at":"2022-04-06T08:37:26Z","abstract_excerpt":"Computational spectrometers have mobile application potential, such as on-site detection and self-diagnosis, by offering compact size, fast operation time, high resolution, wide working range, and low-cost production. Although these spectrometers have been extensively studied, demonstrations are confined to a few examples of straightforward spectra. This study demonstrates deep learning (DL)-based single-shot computational spectrometer for narrow and broad spectra using a multilayer thin-film filter array. For measuring light intensities, the device was built by attaching the filter array, fab"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2204.02669","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/2204.02669/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":"2026-07-05T11:30:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Xaa0k0dH8V3OhD9wt5Ygh0PB3Gs/J6ao9V8LeePzS51/OamdR7icVIgkRcEirvFiGMtlvFx+ucFXXEQ46sqeCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-23T17:05:56.698063Z"},"content_sha256":"a0f0b09017f98bf43dfd11667133274a395cd472750bc4b03066b1ffc84b36ef","schema_version":"1.0","event_id":"sha256:a0f0b09017f98bf43dfd11667133274a395cd472750bc4b03066b1ffc84b36ef"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/FMM3FA3J4JLXDTBEXVOIUQMUWT/bundle.json","state_url":"https://pith.science/pith/FMM3FA3J4JLXDTBEXVOIUQMUWT/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/FMM3FA3J4JLXDTBEXVOIUQMUWT/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":"2026-08-23T17:05:56Z","links":{"resolver":"https://pith.science/pith/FMM3FA3J4JLXDTBEXVOIUQMUWT","bundle":"https://pith.science/pith/FMM3FA3J4JLXDTBEXVOIUQMUWT/bundle.json","state":"https://pith.science/pith/FMM3FA3J4JLXDTBEXVOIUQMUWT/state.json","well_known_bundle":"https://pith.science/.well-known/pith/FMM3FA3J4JLXDTBEXVOIUQMUWT/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:FMM3FA3J4JLXDTBEXVOIUQMUWT","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":"a66a84c9b165a9eaea3a55a407978570abfbd6afb81b24d56283af14fc362b45","cross_cats_sorted":["physics.ins-det"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2022-04-06T08:37:26Z","title_canon_sha256":"f8817082a5d0c32cd9304b337cde7187c86ecc2076fa730c76db287273365bf4"},"schema_version":"1.0","source":{"id":"2204.02669","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2204.02669","created_at":"2026-07-05T11:30:59Z"},{"alias_kind":"arxiv_version","alias_value":"2204.02669v1","created_at":"2026-07-05T11:30:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2204.02669","created_at":"2026-07-05T11:30:59Z"},{"alias_kind":"pith_short_12","alias_value":"FMM3FA3J4JLX","created_at":"2026-07-05T11:30:59Z"},{"alias_kind":"pith_short_16","alias_value":"FMM3FA3J4JLXDTBE","created_at":"2026-07-05T11:30:59Z"},{"alias_kind":"pith_short_8","alias_value":"FMM3FA3J","created_at":"2026-07-05T11:30:59Z"}],"graph_snapshots":[{"event_id":"sha256:a0f0b09017f98bf43dfd11667133274a395cd472750bc4b03066b1ffc84b36ef","target":"graph","created_at":"2026-07-05T11:30:59Z","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/2204.02669/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Computational spectrometers have mobile application potential, such as on-site detection and self-diagnosis, by offering compact size, fast operation time, high resolution, wide working range, and low-cost production. Although these spectrometers have been extensively studied, demonstrations are confined to a few examples of straightforward spectra. This study demonstrates deep learning (DL)-based single-shot computational spectrometer for narrow and broad spectra using a multilayer thin-film filter array. For measuring light intensities, the device was built by attaching the filter array, fab","authors_text":"Cheolsun Kim, Dongju Park, Heung-No Lee, Jioh Lee","cross_cats":["physics.ins-det"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2022-04-06T08:37:26Z","title":"Deep learning-based single-shot computational spectrometer using multilayer thin films"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2204.02669","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":"sha256:7bd8fd2b6b4ace0f0aa7d16651a7de5cbaab9f82102c0db5db954e96cdcbcc1a","target":"record","created_at":"2026-07-05T11:30:59Z","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":"a66a84c9b165a9eaea3a55a407978570abfbd6afb81b24d56283af14fc362b45","cross_cats_sorted":["physics.ins-det"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2022-04-06T08:37:26Z","title_canon_sha256":"f8817082a5d0c32cd9304b337cde7187c86ecc2076fa730c76db287273365bf4"},"schema_version":"1.0","source":{"id":"2204.02669","kind":"arxiv","version":1}},"canonical_sha256":"2b19b28369e25771cc24bd5c8a4194b4c17af402ba5c1ac5f14bb4be8858b94d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2b19b28369e25771cc24bd5c8a4194b4c17af402ba5c1ac5f14bb4be8858b94d","first_computed_at":"2026-07-05T11:30:59.653957Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:30:59.653957Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"GjYnPKIfBTJbBgw9VEA9u1n3bcs6ayXAne3Ezm3O6MY1f60mPFc36raULWgg399pdVHDoPrPZqvr9Dca9aJsAA==","signature_status":"signed_v1","signed_at":"2026-07-05T11:30:59.654578Z","signed_message":"canonical_sha256_bytes"},"source_id":"2204.02669","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7bd8fd2b6b4ace0f0aa7d16651a7de5cbaab9f82102c0db5db954e96cdcbcc1a","sha256:a0f0b09017f98bf43dfd11667133274a395cd472750bc4b03066b1ffc84b36ef"],"state_sha256":"fb0af4ae1557649a8bffc51c1424c0d0566ccd6cf2977d483006f1c46ad07c84"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TTgvsBvYDJBJQlUse1SEC2VooshiEcp15VJcjePzfwDxagOcqnSpLwo+0KRZshyLW2b+1vcq6MCFAo3Og/zhCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-23T17:05:56.700547Z","bundle_sha256":"12b8210cda61b554f573facfe26f3689d0def7ac17dc65b1524ff7514aa51c16"}}