{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2026:ASPEUIIRESBUXYIUE6Q6S3EVFA","short_pith_number":"pith:ASPEUIIR","schema_version":"1.0","canonical_sha256":"049e4a211124834be11427a1e96c95283c65a3c85b2d00d729450df36fe1e589","source":{"kind":"arxiv","id":"2606.22367","version":1},"attestation_state":"computed","paper":{"title":"Single-photon time-stretch computational ghost spectroscopy","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"Beibei Dong, Ben Sun, Heping Zeng, Jianan Fang, Kun Huang, Wen Zhang, Zhibin Zhao","submitted_at":"2026-06-21T07:34:57Z","abstract_excerpt":"Time-stretch spectroscopy is powerful for capturing transient spectral phenomena but remains fundamentally limited by detector bandwidth or timing jitter, especially under photon-starved conditions. Here, we devise and implement single-photon time-stretch computational ghost spectroscopy, which integrates dispersive wavelength-to-time mapping with programmable temporal encoding and correlation-based reconstruction to overcome these detection limitations. Specifically, temporally stretched ultrashort pulses are modulated by predefined encoding patterns and detected by a low-bandwidth detector, "},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"2606.22367","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2026-06-21T07:34:57Z","cross_cats_sorted":[],"title_canon_sha256":"b94feb3b9356fedc3481a1d343d4dee906ce1ea52ee16a3756791286a41d0f2b","abstract_canon_sha256":"22aa6831a74f3e1b2cb6fed2067a37c6ee1052190731ca880679094532034ca0"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-23T02:13:36.480739Z","signature_b64":"eewD9RIvvjFaNlMasrwEs1C7yQKvGTapAV1BY5YubN/XQSZ7Fogdv9MFCVJxXyNXzRTKCD5HyDIY7wkvIp1zDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"049e4a211124834be11427a1e96c95283c65a3c85b2d00d729450df36fe1e589","last_reissued_at":"2026-06-23T02:13:36.480323Z","signature_status":"signed_v1","first_computed_at":"2026-06-23T02:13:36.480323Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Single-photon time-stretch computational ghost spectroscopy","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"Beibei Dong, Ben Sun, Heping Zeng, Jianan Fang, Kun Huang, Wen Zhang, Zhibin Zhao","submitted_at":"2026-06-21T07:34:57Z","abstract_excerpt":"Time-stretch spectroscopy is powerful for capturing transient spectral phenomena but remains fundamentally limited by detector bandwidth or timing jitter, especially under photon-starved conditions. Here, we devise and implement single-photon time-stretch computational ghost spectroscopy, which integrates dispersive wavelength-to-time mapping with programmable temporal encoding and correlation-based reconstruction to overcome these detection limitations. Specifically, temporally stretched ultrashort pulses are modulated by predefined encoding patterns and detected by a low-bandwidth detector, "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.22367","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/2606.22367/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"},"aliases":[{"alias_kind":"arxiv","alias_value":"2606.22367","created_at":"2026-06-23T02:13:36.480390+00:00"},{"alias_kind":"arxiv_version","alias_value":"2606.22367v1","created_at":"2026-06-23T02:13:36.480390+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.22367","created_at":"2026-06-23T02:13:36.480390+00:00"},{"alias_kind":"pith_short_12","alias_value":"ASPEUIIRESBU","created_at":"2026-06-23T02:13:36.480390+00:00"},{"alias_kind":"pith_short_16","alias_value":"ASPEUIIRESBUXYIU","created_at":"2026-06-23T02:13:36.480390+00:00"},{"alias_kind":"pith_short_8","alias_value":"ASPEUIIR","created_at":"2026-06-23T02:13:36.480390+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/ASPEUIIRESBUXYIUE6Q6S3EVFA","json":"https://pith.science/pith/ASPEUIIRESBUXYIUE6Q6S3EVFA.json","graph_json":"https://pith.science/api/pith-number/ASPEUIIRESBUXYIUE6Q6S3EVFA/graph.json","events_json":"https://pith.science/api/pith-number/ASPEUIIRESBUXYIUE6Q6S3EVFA/events.json","paper":"https://pith.science/paper/ASPEUIIR"},"agent_actions":{"view_html":"https://pith.science/pith/ASPEUIIRESBUXYIUE6Q6S3EVFA","download_json":"https://pith.science/pith/ASPEUIIRESBUXYIUE6Q6S3EVFA.json","view_paper":"https://pith.science/paper/ASPEUIIR","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2606.22367&json=true","fetch_graph":"https://pith.science/api/pith-number/ASPEUIIRESBUXYIUE6Q6S3EVFA/graph.json","fetch_events":"https://pith.science/api/pith-number/ASPEUIIRESBUXYIUE6Q6S3EVFA/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/ASPEUIIRESBUXYIUE6Q6S3EVFA/action/timestamp_anchor","attest_storage":"https://pith.science/pith/ASPEUIIRESBUXYIUE6Q6S3EVFA/action/storage_attestation","attest_author":"https://pith.science/pith/ASPEUIIRESBUXYIUE6Q6S3EVFA/action/author_attestation","sign_citation":"https://pith.science/pith/ASPEUIIRESBUXYIUE6Q6S3EVFA/action/citation_signature","submit_replication":"https://pith.science/pith/ASPEUIIRESBUXYIUE6Q6S3EVFA/action/replication_record"}},"created_at":"2026-06-23T02:13:36.480390+00:00","updated_at":"2026-06-23T02:13:36.480390+00:00"}