{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:2SIN5YQYNQTNYJ5PVMJTOL6GT2","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":"ba9cc5172444094fc50f64749c75e91dbf653016363231483e0981a2442f10d0","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2025-02-03T12:53:21Z","title_canon_sha256":"f63bb30f8a0c5a4039f1888015da19dcf71b2e9b8aa9d47e80727f21485f3bbd"},"schema_version":"1.0","source":{"id":"2502.01322","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2502.01322","created_at":"2026-07-05T11:22:36Z"},{"alias_kind":"arxiv_version","alias_value":"2502.01322v2","created_at":"2026-07-05T11:22:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2502.01322","created_at":"2026-07-05T11:22:36Z"},{"alias_kind":"pith_short_12","alias_value":"2SIN5YQYNQTN","created_at":"2026-07-05T11:22:36Z"},{"alias_kind":"pith_short_16","alias_value":"2SIN5YQYNQTNYJ5P","created_at":"2026-07-05T11:22:36Z"},{"alias_kind":"pith_short_8","alias_value":"2SIN5YQY","created_at":"2026-07-05T11:22:36Z"}],"graph_snapshots":[{"event_id":"sha256:90973201d93b477b10e2bcc3f667a621fc969c2d40451ec9a3767dfb079d0291","target":"graph","created_at":"2026-07-05T11:22:36Z","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/2502.01322/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Ultrafast laser pulses that are both tunable in wavelength and very short in duration are essential tools in fields ranging from biomedical imaging to ultrafast spectroscopy. While resonant dispersive-wave emission in gas-filled hollow-core fibers is a powerful technique for generating such pulses, it has traditionally required complex and expensive pump laser systems. In this work, we present a more compact and accessible alternative that combines gain-managed nonlinear amplification with resonant dispersive-wave emission. Our system produces sub-20 femtosecond pulses tunable from 400 nm to b","authors_text":"James M. Stone, John C. Travers, Kerrianne Harrington, Leah R. Murphy, Mohammed Sabbah, Robbie Mears, Tim A. Birks","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2025-02-03T12:53:21Z","title":"Tunable megawatt-scale sub-20 fs visible pulses from a fiber laser source"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2502.01322","kind":"arxiv","version":2},"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:a5093858b207b1d2f8b051216df019551305cb920b2fd5617003c6bf55d31c8f","target":"record","created_at":"2026-07-05T11:22:36Z","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":"ba9cc5172444094fc50f64749c75e91dbf653016363231483e0981a2442f10d0","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2025-02-03T12:53:21Z","title_canon_sha256":"f63bb30f8a0c5a4039f1888015da19dcf71b2e9b8aa9d47e80727f21485f3bbd"},"schema_version":"1.0","source":{"id":"2502.01322","kind":"arxiv","version":2}},"canonical_sha256":"d490dee2186c26dc27afab13372fc69e8c8568f1beb008047acb68c242dde64a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d490dee2186c26dc27afab13372fc69e8c8568f1beb008047acb68c242dde64a","first_computed_at":"2026-07-05T11:22:36.235450Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:22:36.235450Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"qwC81qlCTvWdE+NSxmgq1UF9R56iCUXQ+EYOLK2vkrrhXwnk8eAVp3CQxv9R2qoVqN+xHUlufQGjCU/szgEfDg==","signature_status":"signed_v1","signed_at":"2026-07-05T11:22:36.235940Z","signed_message":"canonical_sha256_bytes"},"source_id":"2502.01322","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a5093858b207b1d2f8b051216df019551305cb920b2fd5617003c6bf55d31c8f","sha256:90973201d93b477b10e2bcc3f667a621fc969c2d40451ec9a3767dfb079d0291"],"state_sha256":"a9755cee4457ec546b495c949714e119040bd086ac3e68a07c76326cee7e82cc"}