{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:SQGOED42BOIAVWVWES2ROXEYCU","short_pith_number":"pith:SQGOED42","canonical_record":{"source":{"id":"2605.26455","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2026-05-26T02:11:23Z","cross_cats_sorted":[],"title_canon_sha256":"63e9662d097490ae6789b19817da6f7689d3cea4523df8a2419c4fa170fc9aad","abstract_canon_sha256":"445bb6a8570a25e0195db416ff3a847cbc5daa511f8c7548666f1a7248ed10b7"},"schema_version":"1.0"},"canonical_sha256":"940ce20f9a0b900adab624b5175c98150f968ef99f206227cdff9bb2c4eec847","source":{"kind":"arxiv","id":"2605.26455","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.26455","created_at":"2026-05-27T01:05:18Z"},{"alias_kind":"arxiv_version","alias_value":"2605.26455v1","created_at":"2026-05-27T01:05:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.26455","created_at":"2026-05-27T01:05:18Z"},{"alias_kind":"pith_short_12","alias_value":"SQGOED42BOIA","created_at":"2026-05-27T01:05:18Z"},{"alias_kind":"pith_short_16","alias_value":"SQGOED42BOIAVWVW","created_at":"2026-05-27T01:05:18Z"},{"alias_kind":"pith_short_8","alias_value":"SQGOED42","created_at":"2026-05-27T01:05:18Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:SQGOED42BOIAVWVWES2ROXEYCU","target":"record","payload":{"canonical_record":{"source":{"id":"2605.26455","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2026-05-26T02:11:23Z","cross_cats_sorted":[],"title_canon_sha256":"63e9662d097490ae6789b19817da6f7689d3cea4523df8a2419c4fa170fc9aad","abstract_canon_sha256":"445bb6a8570a25e0195db416ff3a847cbc5daa511f8c7548666f1a7248ed10b7"},"schema_version":"1.0"},"canonical_sha256":"940ce20f9a0b900adab624b5175c98150f968ef99f206227cdff9bb2c4eec847","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-27T01:05:18.889953Z","signature_b64":"IUmv6lCRC55WDjXqrv9jRJUIgolC5aWeZvBMvXTO6505v0+GE1O5yxgz5gLMbmjCEWV6xT2StgVc6nBvtobEAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"940ce20f9a0b900adab624b5175c98150f968ef99f206227cdff9bb2c4eec847","last_reissued_at":"2026-05-27T01:05:18.889247Z","signature_status":"signed_v1","first_computed_at":"2026-05-27T01:05:18.889247Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2605.26455","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":"2026-05-27T01:05:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UgUh/LpCf0LBd4wN+3nW87VU7jCjljVYDCk9rdnunHjCVbugEl3RuMKpU7wCFyG9VefTlU+iDerMdPtrJ+B/Dw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T14:24:21.690905Z"},"content_sha256":"ca45822d457d14022e3fc2534e0baf6ff9c64bace01c7ddce7b8333b32b40ba9","schema_version":"1.0","event_id":"sha256:ca45822d457d14022e3fc2534e0baf6ff9c64bace01c7ddce7b8333b32b40ba9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:SQGOED42BOIAVWVWES2ROXEYCU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"High-resolution mid-infrared single-photon upconversion ranging","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"Ben Sun, E Wu, Heping Zeng, Jianan Fang, Kun Huang, Ming Yan, Qiang Hao, Shuhong Jiang, Tingting Yu, Yan Liang","submitted_at":"2026-05-26T02:11:23Z","abstract_excerpt":"Single-photon laser ranging has widespread applications in remote sensing and target recognition. However, highly-sensitive light detection and ranging (LiDAR) has long been restricted in visible or near-infrared bands. An appealing quest is to extend the operation wavelength into the mid-infrared (MIR) region, which calls for an infrared photon counting system at high detection sensitivity and precise temporal resolution. Here, we devise and demonstrate a MIR upconversion LiDAR based on nonlinear asynchronous optical sampling. Specifically, the infrared probe is interrogated in a nonlinear cr"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.26455","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/2605.26455/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":"2026-05-27T01:05:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"olfUMf9t+R9ujbsCZPfMF5kodg74KJPq9YZNSinJ1s3L2vjkxqF+lxigZZA/dvEVs1qguQShlnhoyMryyA8tCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T14:24:21.691533Z"},"content_sha256":"37f882295e2c98e710a8293c18430e2fba164e2ea841c9cd25f0238464d06efc","schema_version":"1.0","event_id":"sha256:37f882295e2c98e710a8293c18430e2fba164e2ea841c9cd25f0238464d06efc"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/SQGOED42BOIAVWVWES2ROXEYCU/bundle.json","state_url":"https://pith.science/pith/SQGOED42BOIAVWVWES2ROXEYCU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/SQGOED42BOIAVWVWES2ROXEYCU/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":"2026-05-30T14:24:21Z","links":{"resolver":"https://pith.science/pith/SQGOED42BOIAVWVWES2ROXEYCU","bundle":"https://pith.science/pith/SQGOED42BOIAVWVWES2ROXEYCU/bundle.json","state":"https://pith.science/pith/SQGOED42BOIAVWVWES2ROXEYCU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/SQGOED42BOIAVWVWES2ROXEYCU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:SQGOED42BOIAVWVWES2ROXEYCU","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":"445bb6a8570a25e0195db416ff3a847cbc5daa511f8c7548666f1a7248ed10b7","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2026-05-26T02:11:23Z","title_canon_sha256":"63e9662d097490ae6789b19817da6f7689d3cea4523df8a2419c4fa170fc9aad"},"schema_version":"1.0","source":{"id":"2605.26455","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.26455","created_at":"2026-05-27T01:05:18Z"},{"alias_kind":"arxiv_version","alias_value":"2605.26455v1","created_at":"2026-05-27T01:05:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.26455","created_at":"2026-05-27T01:05:18Z"},{"alias_kind":"pith_short_12","alias_value":"SQGOED42BOIA","created_at":"2026-05-27T01:05:18Z"},{"alias_kind":"pith_short_16","alias_value":"SQGOED42BOIAVWVW","created_at":"2026-05-27T01:05:18Z"},{"alias_kind":"pith_short_8","alias_value":"SQGOED42","created_at":"2026-05-27T01:05:18Z"}],"graph_snapshots":[{"event_id":"sha256:37f882295e2c98e710a8293c18430e2fba164e2ea841c9cd25f0238464d06efc","target":"graph","created_at":"2026-05-27T01:05:18Z","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/2605.26455/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Single-photon laser ranging has widespread applications in remote sensing and target recognition. However, highly-sensitive light detection and ranging (LiDAR) has long been restricted in visible or near-infrared bands. An appealing quest is to extend the operation wavelength into the mid-infrared (MIR) region, which calls for an infrared photon counting system at high detection sensitivity and precise temporal resolution. Here, we devise and demonstrate a MIR upconversion LiDAR based on nonlinear asynchronous optical sampling. Specifically, the infrared probe is interrogated in a nonlinear cr","authors_text":"Ben Sun, E Wu, Heping Zeng, Jianan Fang, Kun Huang, Ming Yan, Qiang Hao, Shuhong Jiang, Tingting Yu, Yan Liang","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2026-05-26T02:11:23Z","title":"High-resolution mid-infrared single-photon upconversion ranging"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.26455","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:ca45822d457d14022e3fc2534e0baf6ff9c64bace01c7ddce7b8333b32b40ba9","target":"record","created_at":"2026-05-27T01:05:18Z","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":"445bb6a8570a25e0195db416ff3a847cbc5daa511f8c7548666f1a7248ed10b7","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2026-05-26T02:11:23Z","title_canon_sha256":"63e9662d097490ae6789b19817da6f7689d3cea4523df8a2419c4fa170fc9aad"},"schema_version":"1.0","source":{"id":"2605.26455","kind":"arxiv","version":1}},"canonical_sha256":"940ce20f9a0b900adab624b5175c98150f968ef99f206227cdff9bb2c4eec847","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"940ce20f9a0b900adab624b5175c98150f968ef99f206227cdff9bb2c4eec847","first_computed_at":"2026-05-27T01:05:18.889247Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-27T01:05:18.889247Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"IUmv6lCRC55WDjXqrv9jRJUIgolC5aWeZvBMvXTO6505v0+GE1O5yxgz5gLMbmjCEWV6xT2StgVc6nBvtobEAQ==","signature_status":"signed_v1","signed_at":"2026-05-27T01:05:18.889953Z","signed_message":"canonical_sha256_bytes"},"source_id":"2605.26455","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ca45822d457d14022e3fc2534e0baf6ff9c64bace01c7ddce7b8333b32b40ba9","sha256:37f882295e2c98e710a8293c18430e2fba164e2ea841c9cd25f0238464d06efc"],"state_sha256":"97bda86181d6de2ccc3913222e75e0481335476f8dcf25aa773782d575157e24"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kQWZmzY25knFx4ivy0ufkawU9bMux5zKayyAAsl6NOJtv2JqUuhgoayCfWVukF6XbJS7QH/dBQ2rYPxVf2LvDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T14:24:21.694887Z","bundle_sha256":"2a074bedab648394028c0355584cabf9d8fd37420e35bbf0494eb409cc2235df"}}