{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:TTFGAUFRSJQKEZODEOWZ4E6UDT","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":"51d4667d67d0d609b85a4533ec1d52b7c88596eed3d9fdf4d662db9bcb8dc571","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2016-07-15T16:39:56Z","title_canon_sha256":"4d3eccd768caa342fe83f0402d376314cf8bd8aea801de74bcca78e841653ff3"},"schema_version":"1.0","source":{"id":"1607.04575","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1607.04575","created_at":"2026-05-18T01:04:10Z"},{"alias_kind":"arxiv_version","alias_value":"1607.04575v1","created_at":"2026-05-18T01:04:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1607.04575","created_at":"2026-05-18T01:04:10Z"},{"alias_kind":"pith_short_12","alias_value":"TTFGAUFRSJQK","created_at":"2026-05-18T12:30:46Z"},{"alias_kind":"pith_short_16","alias_value":"TTFGAUFRSJQKEZOD","created_at":"2026-05-18T12:30:46Z"},{"alias_kind":"pith_short_8","alias_value":"TTFGAUFR","created_at":"2026-05-18T12:30:46Z"}],"graph_snapshots":[{"event_id":"sha256:02a229e2f66d0470a1e5f8461137536f31f789846a71757ec4c1a4b1712e157e","target":"graph","created_at":"2026-05-18T01:04:10Z","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":"Dual-comb interferometry is a measurement technique that uses two laser frequency combs to retrieve complex spectra in a line-by-line basis. This technique can be implemented with electro-optic frequency combs, offering intrinsic mutual coherence, high acquisition speed and flexible repetition-rate operation. A challenge with the operation of this kind of frequency comb in dual-comb interferometry is its limited optical bandwidth. Here, we use coherent spectral broadening and demonstrate electro-optic dual-comb interferometry over the entire telecommunications C band (200 lines covering ~ 40 n","authors_text":"Peter A. Andrekson, Vicente Duran, Victor Torres-Company","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2016-07-15T16:39:56Z","title":"Electro-optic dual-comb interferometry over 40-nm bandwidth"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1607.04575","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:a51b797e34e77a60b018211a10653064874c4f3357cde8dd49429ca25dd08d58","target":"record","created_at":"2026-05-18T01:04:10Z","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":"51d4667d67d0d609b85a4533ec1d52b7c88596eed3d9fdf4d662db9bcb8dc571","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2016-07-15T16:39:56Z","title_canon_sha256":"4d3eccd768caa342fe83f0402d376314cf8bd8aea801de74bcca78e841653ff3"},"schema_version":"1.0","source":{"id":"1607.04575","kind":"arxiv","version":1}},"canonical_sha256":"9cca6050b19260a265c323ad9e13d41cd28fd13009cd827da4fbcc6f01ac0510","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9cca6050b19260a265c323ad9e13d41cd28fd13009cd827da4fbcc6f01ac0510","first_computed_at":"2026-05-18T01:04:10.484924Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:04:10.484924Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"GU1r/89ifMhhfx0fr/eyxtfymvRDU6jjsgPUlhbRSVgDDTDKXppt1lmfQCg1ViTn1iVCMomksjUQe4JbZ8obCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:04:10.485452Z","signed_message":"canonical_sha256_bytes"},"source_id":"1607.04575","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a51b797e34e77a60b018211a10653064874c4f3357cde8dd49429ca25dd08d58","sha256:02a229e2f66d0470a1e5f8461137536f31f789846a71757ec4c1a4b1712e157e"],"state_sha256":"259e2b8054c7869b2242112ba6317bdbc24d9b3f5addae8d7701cdc2e5e6191b"}