{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:645C5KKPOB7LULGVOFSMJZVXGW","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":"43fce3427a9cf56482aff4d9b2d2b69b705e0833b3b4dec1f3cb9908ed9a081d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2025-01-13T19:32:30Z","title_canon_sha256":"8d95ff6e91bbde6ef116956c2b14bd358a9dcbe13d607b8b153b429a9f40c257"},"schema_version":"1.0","source":{"id":"2501.07657","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2501.07657","created_at":"2026-07-05T10:00:48Z"},{"alias_kind":"arxiv_version","alias_value":"2501.07657v1","created_at":"2026-07-05T10:00:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2501.07657","created_at":"2026-07-05T10:00:48Z"},{"alias_kind":"pith_short_12","alias_value":"645C5KKPOB7L","created_at":"2026-07-05T10:00:48Z"},{"alias_kind":"pith_short_16","alias_value":"645C5KKPOB7LULGV","created_at":"2026-07-05T10:00:48Z"},{"alias_kind":"pith_short_8","alias_value":"645C5KKP","created_at":"2026-07-05T10:00:48Z"}],"graph_snapshots":[{"event_id":"sha256:89d92ed6533bd281b1aaae96751dc1ad3f20ca4dfaa3ca9ba6b8383fca6563be","target":"graph","created_at":"2026-07-05T10:00:48Z","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/2501.07657/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Narrow linewidth lasers are indispensable for coherent optical systems, including communications, metrology, and sensing. Although compact semiconductor lasers with narrow linewidths and low noise have been demonstrated, their spectral purity typically relies on hybrid or heterogeneous external cavity feedback. Here, we present a theoretical and experimental demonstration of a heterogeneous free optical injection locking (HF OIL) semiconductor laser. By integrating a topological interface state extended (TISE) laser with a micro ring resonator (MRR) on an AlGaInAs multiple quantum well platfor","authors_text":"Anthony E. Kelly, John H. Marsh, Jue Wang, Lianping Hou, Stephen. J. Sweeney, Xiao Sun, Yiming Sun, Yupei Wang, Zhibo Li","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2025-01-13T19:32:30Z","title":"Heterogeneous-free narrow linewidth semiconductor laser with optical injection locking"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2501.07657","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":"sha256:08f7a182b9e3e3e1dab54f034b949db5683b0906aa3ce553e33de4f4c79d6979","target":"record","created_at":"2026-07-05T10:00:48Z","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":"43fce3427a9cf56482aff4d9b2d2b69b705e0833b3b4dec1f3cb9908ed9a081d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2025-01-13T19:32:30Z","title_canon_sha256":"8d95ff6e91bbde6ef116956c2b14bd358a9dcbe13d607b8b153b429a9f40c257"},"schema_version":"1.0","source":{"id":"2501.07657","kind":"arxiv","version":1}},"canonical_sha256":"f73a2ea94f707eba2cd57164c4e6b735993034e83539e94b66027071eac8f0ca","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f73a2ea94f707eba2cd57164c4e6b735993034e83539e94b66027071eac8f0ca","first_computed_at":"2026-07-05T10:00:48.267407Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:00:48.267407Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"KJEETyDppQgJcYaxif4ZNmYko5eNglY6xN+kN/aHI9+QY8Mn8SCkO9nelvQL33GNRSqlwXQsjUIl56s65Lx5Aw==","signature_status":"signed_v1","signed_at":"2026-07-05T10:00:48.267936Z","signed_message":"canonical_sha256_bytes"},"source_id":"2501.07657","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:08f7a182b9e3e3e1dab54f034b949db5683b0906aa3ce553e33de4f4c79d6979","sha256:89d92ed6533bd281b1aaae96751dc1ad3f20ca4dfaa3ca9ba6b8383fca6563be"],"state_sha256":"296e292ea11d16b22be1e9478ce707a58aa4742d495a8fdeaa5b2b59a9cdaff7"}