{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:6FBRNDOYAVQMJC65PV6X5EGB76","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":"9c1f0ed0d93d5bb53ba9c0fb97fc21716a5c3397f97a34167812ae22eb2fdcb5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2015-11-02T08:15:43Z","title_canon_sha256":"cc234bee93fe19a4b6bcda33aa7677efcd5d7cbc84bc14dcce476af75f16439e"},"schema_version":"1.0","source":{"id":"1511.00409","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1511.00409","created_at":"2026-05-18T00:52:34Z"},{"alias_kind":"arxiv_version","alias_value":"1511.00409v2","created_at":"2026-05-18T00:52:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1511.00409","created_at":"2026-05-18T00:52:34Z"},{"alias_kind":"pith_short_12","alias_value":"6FBRNDOYAVQM","created_at":"2026-05-18T12:29:07Z"},{"alias_kind":"pith_short_16","alias_value":"6FBRNDOYAVQMJC65","created_at":"2026-05-18T12:29:07Z"},{"alias_kind":"pith_short_8","alias_value":"6FBRNDOY","created_at":"2026-05-18T12:29:07Z"}],"graph_snapshots":[{"event_id":"sha256:eb897b23ab6c03b36ff425e1bee1fec88684219ff71033a4402eae09bb1e871a","target":"graph","created_at":"2026-05-18T00:52:34Z","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":"We report on the generation of nanosecond mid-infrared pulses having frequency tunability, a narrow linewidth, and a high pulse energy. These pulses are obtained by frequency mixing between injection-seeded near-infrared pulses in potassium titanyl arsenate crystals. A continuous-wave external cavity laser diode or a Ti:sapphire ring laser is used as a tunable seeding source for the near-infrared pulses. The typical energy of the generated mid-infrared pulses is in the range of 0.4-1 mJ/pulse. The tuning wavelength ranges from 3142 to 4806 nm. A narrow linewidth of 1.4 GHz and good frequency r","authors_text":"Hideaki Hara, Noboru Sasao, Satoshi Uetake, Takahiko Masuda, Takahiro Hiraki, Yuki Miyamoto","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2015-11-02T08:15:43Z","title":"Injection seeded tunable mid-infrared pulses by difference frequency mixing"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1511.00409","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:d1a9663041fb3abf2016306c8043851ba24ace3c075c5dc1ac692c862a4f754c","target":"record","created_at":"2026-05-18T00:52:34Z","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":"9c1f0ed0d93d5bb53ba9c0fb97fc21716a5c3397f97a34167812ae22eb2fdcb5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2015-11-02T08:15:43Z","title_canon_sha256":"cc234bee93fe19a4b6bcda33aa7677efcd5d7cbc84bc14dcce476af75f16439e"},"schema_version":"1.0","source":{"id":"1511.00409","kind":"arxiv","version":2}},"canonical_sha256":"f143168dd80560c48bdd7d7d7e90c1ff86e54a92d37db04065ddfc8c3a1875b4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f143168dd80560c48bdd7d7d7e90c1ff86e54a92d37db04065ddfc8c3a1875b4","first_computed_at":"2026-05-18T00:52:34.476821Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:52:34.476821Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"J1WR+FmOrFFSclOThTCaI1bmTgGzqslg2e7CZ9fBVZUvKSggehxq7G+HpJ9XHBRFgzm7S/ojdpzzSgT9vhSxCA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:52:34.477278Z","signed_message":"canonical_sha256_bytes"},"source_id":"1511.00409","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d1a9663041fb3abf2016306c8043851ba24ace3c075c5dc1ac692c862a4f754c","sha256:eb897b23ab6c03b36ff425e1bee1fec88684219ff71033a4402eae09bb1e871a"],"state_sha256":"b51810df601ef7c99bb3f0e544a2909a42f821c071b07352ca1fd5143ebc5c73"}