{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:JBLGPV3Z2LUEWDUARIWFCRLD5F","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":"eca36f3f7b61b4012416fa25a8f68b77a62bd6f6bf07dc7e708f19f7aae9694a","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2022-12-01T00:31:55Z","title_canon_sha256":"819dfe536edbc71ebf928fe45f59ea924ee1bfa51eca62a43488a9419323ff04"},"schema_version":"1.0","source":{"id":"2212.00191","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2212.00191","created_at":"2026-07-05T06:03:10Z"},{"alias_kind":"arxiv_version","alias_value":"2212.00191v2","created_at":"2026-07-05T06:03:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2212.00191","created_at":"2026-07-05T06:03:10Z"},{"alias_kind":"pith_short_12","alias_value":"JBLGPV3Z2LUE","created_at":"2026-07-05T06:03:10Z"},{"alias_kind":"pith_short_16","alias_value":"JBLGPV3Z2LUEWDUA","created_at":"2026-07-05T06:03:10Z"},{"alias_kind":"pith_short_8","alias_value":"JBLGPV3Z","created_at":"2026-07-05T06:03:10Z"}],"graph_snapshots":[{"event_id":"sha256:9e0b8cc60453deb0848443f06cdc8a0710d6256b57764aad782c2862f2145645","target":"graph","created_at":"2026-07-05T06:03:10Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2212.00191/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The concept of lasers based on the frozen mode regime in active periodic optical waveguides with a 3rd-order exceptional point of degeneracy (EPD) is advanced. The frozen mode regime in a lossless and gainless waveguide is associated with a stationary inflection point (SIP) in the Bloch dispersion relation, where three Bloch eigenmodes coalesce forming the frozen mode. As a practical example, we consider an asymmetric serpentine optical waveguide (ASOW). An ASOW operating near the SIP frequency displays a large group delay of a non-resonant nature that scales as the cube of the waveguide lengt","authors_text":"Albert Herrero-Parareda, Filippo Capolino, Ilya Vitebskiy, Nathaniel Furman, Richard Gibson, Robert Bedford, Tarek Mealy","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2022-12-01T00:31:55Z","title":"Lasing at a Stationary Inflection Point"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2212.00191","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":"sha256:7b17be6acdf2ccdc0068e279e663231279ba7e57ad84b383735fb743be57d649","target":"record","created_at":"2026-07-05T06:03:10Z","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":"eca36f3f7b61b4012416fa25a8f68b77a62bd6f6bf07dc7e708f19f7aae9694a","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2022-12-01T00:31:55Z","title_canon_sha256":"819dfe536edbc71ebf928fe45f59ea924ee1bfa51eca62a43488a9419323ff04"},"schema_version":"1.0","source":{"id":"2212.00191","kind":"arxiv","version":2}},"canonical_sha256":"485667d779d2e84b0e808a2c514563e96e9e3fa7145ece2960ef8adc8dda5b5a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"485667d779d2e84b0e808a2c514563e96e9e3fa7145ece2960ef8adc8dda5b5a","first_computed_at":"2026-07-05T06:03:10.617957Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T06:03:10.617957Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"uFMmxmLuwxgwIjjkvCPMmeV37jl90tIqXafMN4SKsNCsUbRRKTSpTQFmj7iIVGKeeP/ZSRQ2Re/Yypv/0BRPBg==","signature_status":"signed_v1","signed_at":"2026-07-05T06:03:10.618483Z","signed_message":"canonical_sha256_bytes"},"source_id":"2212.00191","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7b17be6acdf2ccdc0068e279e663231279ba7e57ad84b383735fb743be57d649","sha256:9e0b8cc60453deb0848443f06cdc8a0710d6256b57764aad782c2862f2145645"],"state_sha256":"6c9df5f8efbdf9c3a31c3d01f5bf652ddcc9dd46e87b605fe4c1f5db7282baff"}