{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:FAWAPVHSFHW7V3STWDWOC7RBPW","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":"f8b4fbbf9ca7ec849808f32b49e03130c6121e51b6bd67ed81418f1c368913e7","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.app-ph","submitted_at":"2025-01-24T23:19:48Z","title_canon_sha256":"fb06832e84084529b4f2af95095cef8f2634030decaf879ecda2e3df03fcf83a"},"schema_version":"1.0","source":{"id":"2501.14978","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2501.14978","created_at":"2026-07-05T10:09:15Z"},{"alias_kind":"arxiv_version","alias_value":"2501.14978v2","created_at":"2026-07-05T10:09:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2501.14978","created_at":"2026-07-05T10:09:15Z"},{"alias_kind":"pith_short_12","alias_value":"FAWAPVHSFHW7","created_at":"2026-07-05T10:09:15Z"},{"alias_kind":"pith_short_16","alias_value":"FAWAPVHSFHW7V3ST","created_at":"2026-07-05T10:09:15Z"},{"alias_kind":"pith_short_8","alias_value":"FAWAPVHS","created_at":"2026-07-05T10:09:15Z"}],"graph_snapshots":[{"event_id":"sha256:7d6ed51ced3dd7548f3cc1f811f6357edfdcee1d21038e84048d6982a8cade2d","target":"graph","created_at":"2026-07-05T10:09:15Z","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/2501.14978/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"A periodically loaded waveguide composed of periodic discrete nonlinear gain and radiating elements supports a stable oscillation regime related to the presence of an exceptional point of degeneracy (EPD). After reaching saturation, the EPD in the system establishes the oscillation frequency. We demonstrate a synchronization regime at a stable oscillation frequency, resulting in uniform saturated gain across the array and uniform radiating power. Unlike conventional one-dimensional cavity resonances, the oscillation frequency is independent of the array length. Our investigations further show ","authors_text":"Albert Herrero-Parareda, Alireza Nikzamir, Benjamin Bradshaw, Filippo Capolino, Miguel Saavedra-Melo, Nathaniel Furman","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.app-ph","submitted_at":"2025-01-24T23:19:48Z","title":"Array oscillator in coupled waveguides with nonlinear gain and radiation resistances saturating at exceptional point"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2501.14978","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":"sha256:6ab24563bdee9470c1915165e5ad73a2ea62d9a46fcb9c72f5eda6de2d3f6f1b","target":"record","created_at":"2026-07-05T10:09:15Z","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":"f8b4fbbf9ca7ec849808f32b49e03130c6121e51b6bd67ed81418f1c368913e7","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.app-ph","submitted_at":"2025-01-24T23:19:48Z","title_canon_sha256":"fb06832e84084529b4f2af95095cef8f2634030decaf879ecda2e3df03fcf83a"},"schema_version":"1.0","source":{"id":"2501.14978","kind":"arxiv","version":2}},"canonical_sha256":"282c07d4f229edfaee53b0ece17e217da0d5ebc0017160223b4986e2f9b4a84b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"282c07d4f229edfaee53b0ece17e217da0d5ebc0017160223b4986e2f9b4a84b","first_computed_at":"2026-07-05T10:09:15.339457Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:09:15.339457Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"WJ73hSsnO8/iySTfgYhZ8FKFKaU5ULxTwBbwnFaQRqkgI8gmZjv29lX51BkOitva3XwVgZuBMAS/fUomMw79Ag==","signature_status":"signed_v1","signed_at":"2026-07-05T10:09:15.339892Z","signed_message":"canonical_sha256_bytes"},"source_id":"2501.14978","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6ab24563bdee9470c1915165e5ad73a2ea62d9a46fcb9c72f5eda6de2d3f6f1b","sha256:7d6ed51ced3dd7548f3cc1f811f6357edfdcee1d21038e84048d6982a8cade2d"],"state_sha256":"dfc54a6fb7b427c3cf786efae6e1f66edd4936fc999a03ad47d707dfc3a09883"}