{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:JBLGPV3Z2LUEWDUARIWFCRLD5F","short_pith_number":"pith:JBLGPV3Z","canonical_record":{"source":{"id":"2212.00191","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2022-12-01T00:31:55Z","cross_cats_sorted":[],"title_canon_sha256":"819dfe536edbc71ebf928fe45f59ea924ee1bfa51eca62a43488a9419323ff04","abstract_canon_sha256":"eca36f3f7b61b4012416fa25a8f68b77a62bd6f6bf07dc7e708f19f7aae9694a"},"schema_version":"1.0"},"canonical_sha256":"485667d779d2e84b0e808a2c514563e96e9e3fa7145ece2960ef8adc8dda5b5a","source":{"kind":"arxiv","id":"2212.00191","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"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:JBLGPV3Z2LUEWDUARIWFCRLD5F","target":"record","payload":{"canonical_record":{"source":{"id":"2212.00191","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2022-12-01T00:31:55Z","cross_cats_sorted":[],"title_canon_sha256":"819dfe536edbc71ebf928fe45f59ea924ee1bfa51eca62a43488a9419323ff04","abstract_canon_sha256":"eca36f3f7b61b4012416fa25a8f68b77a62bd6f6bf07dc7e708f19f7aae9694a"},"schema_version":"1.0"},"canonical_sha256":"485667d779d2e84b0e808a2c514563e96e9e3fa7145ece2960ef8adc8dda5b5a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T06:03:10.618483Z","signature_b64":"uFMmxmLuwxgwIjjkvCPMmeV37jl90tIqXafMN4SKsNCsUbRRKTSpTQFmj7iIVGKeeP/ZSRQ2Re/Yypv/0BRPBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"485667d779d2e84b0e808a2c514563e96e9e3fa7145ece2960ef8adc8dda5b5a","last_reissued_at":"2026-07-05T06:03:10.617957Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T06:03:10.617957Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2212.00191","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T06:03:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DLjXFXGsp28V9jasyc30lYiWk8Z+9X360z9xKhabYZKCZVHSeqGOyqIi19D+9x3cBcxWnOzV8geXkmdSr2y9BA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-14T14:04:14.737477Z"},"content_sha256":"7b17be6acdf2ccdc0068e279e663231279ba7e57ad84b383735fb743be57d649","schema_version":"1.0","event_id":"sha256:7b17be6acdf2ccdc0068e279e663231279ba7e57ad84b383735fb743be57d649"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:JBLGPV3Z2LUEWDUARIWFCRLD5F","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Lasing at a Stationary Inflection Point","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"Albert Herrero-Parareda, Filippo Capolino, Ilya Vitebskiy, Nathaniel Furman, Richard Gibson, Robert Bedford, Tarek Mealy","submitted_at":"2022-12-01T00:31:55Z","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"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2212.00191","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2212.00191/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T06:03:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Zpa47r/YQDJEEWgdcXBfb4HdPePd8YHfKwBWguCvv6FIBt3gF57ZqBq9IAxSqWL3EzbrOPu+a0JjVECGXoQOAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-14T14:04:14.738267Z"},"content_sha256":"9e0b8cc60453deb0848443f06cdc8a0710d6256b57764aad782c2862f2145645","schema_version":"1.0","event_id":"sha256:9e0b8cc60453deb0848443f06cdc8a0710d6256b57764aad782c2862f2145645"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JBLGPV3Z2LUEWDUARIWFCRLD5F/bundle.json","state_url":"https://pith.science/pith/JBLGPV3Z2LUEWDUARIWFCRLD5F/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JBLGPV3Z2LUEWDUARIWFCRLD5F/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-08-14T14:04:14Z","links":{"resolver":"https://pith.science/pith/JBLGPV3Z2LUEWDUARIWFCRLD5F","bundle":"https://pith.science/pith/JBLGPV3Z2LUEWDUARIWFCRLD5F/bundle.json","state":"https://pith.science/pith/JBLGPV3Z2LUEWDUARIWFCRLD5F/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JBLGPV3Z2LUEWDUARIWFCRLD5F/bundle.json"},"state":{"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"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qlVj2H+em6RyCijt/mkUVzFv04aq2l3YDhwUaQjKOJWNKKHPb7oYUs2KLTO/JfwqYL8CoIO6/4B9wjsOSWnPCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-14T14:04:14.744250Z","bundle_sha256":"4aaac7dd27d42825bf7f66ced125fe57424df0c6f050d69b5f93b1629ea45194"}}