{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:7NYJJB57VPZK5H6OTNQTITR4IP","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":"e03f5ae69ee38538d7d9224489f0306951621b3079a2e0572a61e31ddeae160b","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2025-08-07T12:24:36Z","title_canon_sha256":"22eb6dc54265eb10ab47d3f3a4be35a183614bb458e1e05e576b13b9260aec45"},"schema_version":"1.0","source":{"id":"2508.05320","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2508.05320","created_at":"2026-07-05T11:50:10Z"},{"alias_kind":"arxiv_version","alias_value":"2508.05320v1","created_at":"2026-07-05T11:50:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2508.05320","created_at":"2026-07-05T11:50:10Z"},{"alias_kind":"pith_short_12","alias_value":"7NYJJB57VPZK","created_at":"2026-07-05T11:50:10Z"},{"alias_kind":"pith_short_16","alias_value":"7NYJJB57VPZK5H6O","created_at":"2026-07-05T11:50:10Z"},{"alias_kind":"pith_short_8","alias_value":"7NYJJB57","created_at":"2026-07-05T11:50:10Z"}],"graph_snapshots":[{"event_id":"sha256:9d1f9cb6acffb19e535f13584d0d067a07247e5e95e7c34e302853b9e488d98d","target":"graph","created_at":"2026-07-05T11:50:10Z","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/2508.05320/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The development of practical sensors for optical coherence tomography (OCT) with undetected photons requires miniaturization via integration. To be practical, these sensors must exhibit a large spectral bandwidth and a high brightness, which are linked to a high axial resolution and a sufficient signal to noise ratio, respectively. Here, we combine these requirements in a scheme for OCT-measurements with undetected photons based on nonlinear Ti:LiNbO$_3$ waveguides. We investigate the performance benchmarks of the commonly used SU(1,1) scheme in comparison to an induced coherence scheme and fi","authors_text":"Benjamin Brecht, Christine Silberhorn, Christof Eigner, Franz Roeder, Ren\\'e Pollmann, Viktor Quiring","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2025-08-07T12:24:36Z","title":"Towards integrated sensors for optimized OCT with undetected photons"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2508.05320","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":"sha256:234a6a5f3d68447f17855dfffea08c15aa3e79589a596132492ba5fe78a69d24","target":"record","created_at":"2026-07-05T11:50:10Z","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":"e03f5ae69ee38538d7d9224489f0306951621b3079a2e0572a61e31ddeae160b","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2025-08-07T12:24:36Z","title_canon_sha256":"22eb6dc54265eb10ab47d3f3a4be35a183614bb458e1e05e576b13b9260aec45"},"schema_version":"1.0","source":{"id":"2508.05320","kind":"arxiv","version":1}},"canonical_sha256":"fb709487bfabf2ae9fce9b61344e3c43d45b14fa7862dcbe1baa872f0e291fa3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"fb709487bfabf2ae9fce9b61344e3c43d45b14fa7862dcbe1baa872f0e291fa3","first_computed_at":"2026-07-05T11:50:10.748647Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:50:10.748647Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"3K4i6/zgwY6WEX/GaX30PSRNd2PgRvDB3tz5lo9F/+WFTn1jRwNEVoL71YoxAKjhIW2qhXHNNbBiqXu54USuCg==","signature_status":"signed_v1","signed_at":"2026-07-05T11:50:10.749146Z","signed_message":"canonical_sha256_bytes"},"source_id":"2508.05320","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:234a6a5f3d68447f17855dfffea08c15aa3e79589a596132492ba5fe78a69d24","sha256:9d1f9cb6acffb19e535f13584d0d067a07247e5e95e7c34e302853b9e488d98d"],"state_sha256":"73ce63bb8c92881cc07c2228258822a2c6e00aed1a9f76d4964c3ff6f74cde65"}