{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:4UESOXLAWUZ65HBPZNCTLJQ43E","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":"1412eb4bdb491a9de09e6b2e2ea80c157350c182a65989bbb4b6a0e15bd18598","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2016-01-04T12:22:04Z","title_canon_sha256":"53db0dacd4c61a5e5fe5c4bbf8d592b1aa6255082e4329623fcd6c2f7dbf07d4"},"schema_version":"1.0","source":{"id":"1601.00476","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1601.00476","created_at":"2026-05-18T01:23:27Z"},{"alias_kind":"arxiv_version","alias_value":"1601.00476v1","created_at":"2026-05-18T01:23:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1601.00476","created_at":"2026-05-18T01:23:27Z"},{"alias_kind":"pith_short_12","alias_value":"4UESOXLAWUZ6","created_at":"2026-05-18T12:29:58Z"},{"alias_kind":"pith_short_16","alias_value":"4UESOXLAWUZ65HBP","created_at":"2026-05-18T12:29:58Z"},{"alias_kind":"pith_short_8","alias_value":"4UESOXLA","created_at":"2026-05-18T12:29:58Z"}],"graph_snapshots":[{"event_id":"sha256:c078ee9a4c3a71b5ee5f37b210ea8e33c40c4bbff3ced0e5da60a2ab80e25dc2","target":"graph","created_at":"2026-05-18T01:23:27Z","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"},"paper":{"abstract_excerpt":"Pulse self-compression followed by the generation of resonant radiation is a well known phenomenon in non-linear optics. Resonant radiation is important as it allows for efficient and tunable wavelength conversion. We vary the chirp of the initial pulse and find in simulations and experiments that a small positive chirp enhances the pulse compression and strongly increases the generation of resonant radiation. This result corroborates previously published simulation results indicating an improved degree of pulse compression for a small positive chirp [1]. It also demonstrates how pulse evoluti","authors_text":"Friedrich Koenig, Joanna McLenaghan","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2016-01-04T12:22:04Z","title":"Pulse chirp increasing pulse compression followed by positive resonant radiation in fibers"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1601.00476","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":"sha256:2f326181b4fd952dfcca7d69e6a6f62cdf5e93ae4b38d562c2d06aa63e14561b","target":"record","created_at":"2026-05-18T01:23:27Z","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":"1412eb4bdb491a9de09e6b2e2ea80c157350c182a65989bbb4b6a0e15bd18598","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2016-01-04T12:22:04Z","title_canon_sha256":"53db0dacd4c61a5e5fe5c4bbf8d592b1aa6255082e4329623fcd6c2f7dbf07d4"},"schema_version":"1.0","source":{"id":"1601.00476","kind":"arxiv","version":1}},"canonical_sha256":"e509275d60b533ee9c2fcb4535a61cd925e4e90a0d19e53cdc821422a96837c1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e509275d60b533ee9c2fcb4535a61cd925e4e90a0d19e53cdc821422a96837c1","first_computed_at":"2026-05-18T01:23:27.347782Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:23:27.347782Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"7uFgB1nhi6y8/TkYzC9sd//DYAiN2fcRm9lYaleLtPMpBmSq8rpzAOOgWOexn0sySdEEvmXHGvAGUuPxCRJEDA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:23:27.348452Z","signed_message":"canonical_sha256_bytes"},"source_id":"1601.00476","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2f326181b4fd952dfcca7d69e6a6f62cdf5e93ae4b38d562c2d06aa63e14561b","sha256:c078ee9a4c3a71b5ee5f37b210ea8e33c40c4bbff3ced0e5da60a2ab80e25dc2"],"state_sha256":"3de9f4f71ebfe20fe017af4c2f1bc755e2e2a635435373116309d9dc3ffd0f3b"}