{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:NELFLQNFXDSO326JEL3UKFBEND","short_pith_number":"pith:NELFLQNF","canonical_record":{"source":{"id":"2608.20015","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2026-08-20T13:27:30Z","cross_cats_sorted":["physics.optics"],"title_canon_sha256":"c202f91a3d5a47480c2c6f935efbcce8a34a3d0059564d732200fa243b0e8eea","abstract_canon_sha256":"73635552c07965839e36f466463676f2ce19edf3f05bd995e366ceb914b3fe62"},"schema_version":"1.0"},"canonical_sha256":"691655c1a5b8e4edebc922f745142468ec4e4fe987be09380cc29e01e3a78334","source":{"kind":"arxiv","id":"2608.20015","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2608.20015","created_at":"2026-08-21T01:20:47Z"},{"alias_kind":"arxiv_version","alias_value":"2608.20015v1","created_at":"2026-08-21T01:20:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2608.20015","created_at":"2026-08-21T01:20:47Z"},{"alias_kind":"pith_short_12","alias_value":"NELFLQNFXDSO","created_at":"2026-08-21T01:20:47Z"},{"alias_kind":"pith_short_16","alias_value":"NELFLQNFXDSO326J","created_at":"2026-08-21T01:20:47Z"},{"alias_kind":"pith_short_8","alias_value":"NELFLQNF","created_at":"2026-08-21T01:20:47Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:NELFLQNFXDSO326JEL3UKFBEND","target":"record","payload":{"canonical_record":{"source":{"id":"2608.20015","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2026-08-20T13:27:30Z","cross_cats_sorted":["physics.optics"],"title_canon_sha256":"c202f91a3d5a47480c2c6f935efbcce8a34a3d0059564d732200fa243b0e8eea","abstract_canon_sha256":"73635552c07965839e36f466463676f2ce19edf3f05bd995e366ceb914b3fe62"},"schema_version":"1.0"},"canonical_sha256":"691655c1a5b8e4edebc922f745142468ec4e4fe987be09380cc29e01e3a78334","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-08-21T01:20:47.496421Z","signature_b64":"7wwqHermUsz43SY6pI5uaDk8v682Bchjfivrnb639MpGVbnN34NbRTTfCHSk/4ENhYJOXToVCuHC0j6rqesbAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"691655c1a5b8e4edebc922f745142468ec4e4fe987be09380cc29e01e3a78334","last_reissued_at":"2026-08-21T01:20:47.494828Z","signature_status":"signed_v1","first_computed_at":"2026-08-21T01:20:47.494828Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2608.20015","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":"2026-08-21T01:20:47Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pYgqQ0qK438r4yYpIbMNJhXleNVk8OhkfxfLFA94+N2sCOgEwrHhuIk1FRnRT6Ys6huxODuPcQKeG60ct+pgDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-21T08:14:34.750318Z"},"content_sha256":"cf02c46aa6e4a7ed5a43e31040811377b1600091d9d8e6e78199940aaa8e718d","schema_version":"1.0","event_id":"sha256:cf02c46aa6e4a7ed5a43e31040811377b1600091d9d8e6e78199940aaa8e718d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:NELFLQNFXDSO326JEL3UKFBEND","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Wide-field mid- to long-wave infrared imaging with undetected photons","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["physics.optics"],"primary_cat":"quant-ph","authors_text":"Asteria Chen, Caiyi Liu, Chris Phillips, Nathan Gemmell, Rupert Oulton, Vladimir Kornienko","submitted_at":"2026-08-20T13:27:30Z","abstract_excerpt":"Quantum imaging with undetected photons (QIUP) allows an object to be probed at mid-infrared frequencies by only measuring interference in the visible range, thus leveraging silicon camera technology. We show that non-collinear phase-matching in a silver thiogallate (AgGaS$_2$) crystal enables wide-field QIUP in the wavelength range of 6-10 $\\mu$m (1670-1000 cm$^{-1}$). A combination of coherent detection and infrared photons being ``undetected'' enables imaging at ${\\sim}$100 times better than the background-limited infrared photodetection (BLIP) limit. At 8 $\\mu$m, our images have over 8000 "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2608.20015","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/2608.20015/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":"2026-08-21T01:20:47Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"GSWCZyqzGMzQSidPybz7c8IxYcY4OecKx90b2ejfK2voMP7aavfjaXybSYv8PSjPw7X2d6rQ042YSDj3+Y0wDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-21T08:14:34.750893Z"},"content_sha256":"6aa9c3a6e5cc44b252091b25062736099fab126cbeec95454b7e8ce5e0576130","schema_version":"1.0","event_id":"sha256:6aa9c3a6e5cc44b252091b25062736099fab126cbeec95454b7e8ce5e0576130"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/NELFLQNFXDSO326JEL3UKFBEND/bundle.json","state_url":"https://pith.science/pith/NELFLQNFXDSO326JEL3UKFBEND/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/NELFLQNFXDSO326JEL3UKFBEND/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":"2026-08-21T08:14:34Z","links":{"resolver":"https://pith.science/pith/NELFLQNFXDSO326JEL3UKFBEND","bundle":"https://pith.science/pith/NELFLQNFXDSO326JEL3UKFBEND/bundle.json","state":"https://pith.science/pith/NELFLQNFXDSO326JEL3UKFBEND/state.json","well_known_bundle":"https://pith.science/.well-known/pith/NELFLQNFXDSO326JEL3UKFBEND/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:NELFLQNFXDSO326JEL3UKFBEND","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":"73635552c07965839e36f466463676f2ce19edf3f05bd995e366ceb914b3fe62","cross_cats_sorted":["physics.optics"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2026-08-20T13:27:30Z","title_canon_sha256":"c202f91a3d5a47480c2c6f935efbcce8a34a3d0059564d732200fa243b0e8eea"},"schema_version":"1.0","source":{"id":"2608.20015","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2608.20015","created_at":"2026-08-21T01:20:47Z"},{"alias_kind":"arxiv_version","alias_value":"2608.20015v1","created_at":"2026-08-21T01:20:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2608.20015","created_at":"2026-08-21T01:20:47Z"},{"alias_kind":"pith_short_12","alias_value":"NELFLQNFXDSO","created_at":"2026-08-21T01:20:47Z"},{"alias_kind":"pith_short_16","alias_value":"NELFLQNFXDSO326J","created_at":"2026-08-21T01:20:47Z"},{"alias_kind":"pith_short_8","alias_value":"NELFLQNF","created_at":"2026-08-21T01:20:47Z"}],"graph_snapshots":[{"event_id":"sha256:6aa9c3a6e5cc44b252091b25062736099fab126cbeec95454b7e8ce5e0576130","target":"graph","created_at":"2026-08-21T01:20:47Z","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/2608.20015/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Quantum imaging with undetected photons (QIUP) allows an object to be probed at mid-infrared frequencies by only measuring interference in the visible range, thus leveraging silicon camera technology. We show that non-collinear phase-matching in a silver thiogallate (AgGaS$_2$) crystal enables wide-field QIUP in the wavelength range of 6-10 $\\mu$m (1670-1000 cm$^{-1}$). A combination of coherent detection and infrared photons being ``undetected'' enables imaging at ${\\sim}$100 times better than the background-limited infrared photodetection (BLIP) limit. At 8 $\\mu$m, our images have over 8000 ","authors_text":"Asteria Chen, Caiyi Liu, Chris Phillips, Nathan Gemmell, Rupert Oulton, Vladimir Kornienko","cross_cats":["physics.optics"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2026-08-20T13:27:30Z","title":"Wide-field mid- to long-wave infrared imaging with undetected photons"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2608.20015","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:cf02c46aa6e4a7ed5a43e31040811377b1600091d9d8e6e78199940aaa8e718d","target":"record","created_at":"2026-08-21T01:20:47Z","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":"73635552c07965839e36f466463676f2ce19edf3f05bd995e366ceb914b3fe62","cross_cats_sorted":["physics.optics"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2026-08-20T13:27:30Z","title_canon_sha256":"c202f91a3d5a47480c2c6f935efbcce8a34a3d0059564d732200fa243b0e8eea"},"schema_version":"1.0","source":{"id":"2608.20015","kind":"arxiv","version":1}},"canonical_sha256":"691655c1a5b8e4edebc922f745142468ec4e4fe987be09380cc29e01e3a78334","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"691655c1a5b8e4edebc922f745142468ec4e4fe987be09380cc29e01e3a78334","first_computed_at":"2026-08-21T01:20:47.494828Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-08-21T01:20:47.494828Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"7wwqHermUsz43SY6pI5uaDk8v682Bchjfivrnb639MpGVbnN34NbRTTfCHSk/4ENhYJOXToVCuHC0j6rqesbAA==","signature_status":"signed_v1","signed_at":"2026-08-21T01:20:47.496421Z","signed_message":"canonical_sha256_bytes"},"source_id":"2608.20015","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:cf02c46aa6e4a7ed5a43e31040811377b1600091d9d8e6e78199940aaa8e718d","sha256:6aa9c3a6e5cc44b252091b25062736099fab126cbeec95454b7e8ce5e0576130"],"state_sha256":"908dc965a41088d998da8b1af99a1972a13a6fd499b66246838ca6c341081aa5"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YImaEJd8EGGMSfCU+jy1wqqSeWGfGRFacInnIIalDjjs3mlpF4O3nErncgHpp+nFKSxM7VN0bWektpLgm58uDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-21T08:14:34.756423Z","bundle_sha256":"9eabfed98879a187ad7a2c41bc7c8ce83e478a2d9c106f9917fe903ef7e8ca68"}}