{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:7XCEURT4VU46DXN4VTKDTFNK5X","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":"e425b8d79f6485465442d136139816961890e32b65fc23ceaf68bd41cae8df08","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2022-08-11T17:26:43Z","title_canon_sha256":"bcdf442ef4be2ad08528018640ab9a960872258d9954810030ee424c0a1107e0"},"schema_version":"1.0","source":{"id":"2208.05941","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2208.05941","created_at":"2026-07-05T04:47:53Z"},{"alias_kind":"arxiv_version","alias_value":"2208.05941v1","created_at":"2026-07-05T04:47:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2208.05941","created_at":"2026-07-05T04:47:53Z"},{"alias_kind":"pith_short_12","alias_value":"7XCEURT4VU46","created_at":"2026-07-05T04:47:53Z"},{"alias_kind":"pith_short_16","alias_value":"7XCEURT4VU46DXN4","created_at":"2026-07-05T04:47:53Z"},{"alias_kind":"pith_short_8","alias_value":"7XCEURT4","created_at":"2026-07-05T04:47:53Z"}],"graph_snapshots":[{"event_id":"sha256:f60a17a58476cb1a2fd7a32491385e8fc39715f47079b300406cc0b92a2f0f69","target":"graph","created_at":"2026-07-05T04:47:53Z","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/2208.05941/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Spectral imaging in the mid-infrared (MIR) range provides simultaneous morphological and chemical information of a wide variety of samples. However, current MIR technologies struggle to produce high-definition images over a broad spectral range at acquisition rates that are compatible with real-time processes. We present a novel spectral imaging technique based on non-degenerate two-photon absorption of temporally chirped optical MIR pulses. This new approach avoids complex image processing or reconstruction and enables high-speed acquisition of spectral data cubes [xyw] at high pixel density ","authors_text":"Anabel Chen, Benjamin W. Toulson, David Knez, Dmitry A. Fishman, Eric O. Potma, Hai Nguyen, Martin H. Ettenberg","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2022-08-11T17:26:43Z","title":"Spectral imaging at high-definition and high speed in the mid-infrared"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2208.05941","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":"sha256:9a4639a80468f7a44bf83ef4356bc57a6f65a075ba0a023659cf71124bd54065","target":"record","created_at":"2026-07-05T04:47:53Z","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":"e425b8d79f6485465442d136139816961890e32b65fc23ceaf68bd41cae8df08","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2022-08-11T17:26:43Z","title_canon_sha256":"bcdf442ef4be2ad08528018640ab9a960872258d9954810030ee424c0a1107e0"},"schema_version":"1.0","source":{"id":"2208.05941","kind":"arxiv","version":1}},"canonical_sha256":"fdc44a467cad39e1ddbcacd43995aaedef0bdd4974e7d32568aa307b37d7f94c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"fdc44a467cad39e1ddbcacd43995aaedef0bdd4974e7d32568aa307b37d7f94c","first_computed_at":"2026-07-05T04:47:53.838405Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:47:53.838405Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"H/o6VzJktAQLqrPe3E3kzU5tcl2B97wu6l45XUuaiI8yelNyravTIzPnuEHrJ7qUT7B/VgVGrp61ffj2QAv/AQ==","signature_status":"signed_v1","signed_at":"2026-07-05T04:47:53.838870Z","signed_message":"canonical_sha256_bytes"},"source_id":"2208.05941","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9a4639a80468f7a44bf83ef4356bc57a6f65a075ba0a023659cf71124bd54065","sha256:f60a17a58476cb1a2fd7a32491385e8fc39715f47079b300406cc0b92a2f0f69"],"state_sha256":"35d3c68fa32224833d499cd30556a57c3ec4c6327e59fa70480b906bcf7d61a2"}