{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:6PF3U2IGU6PFPWXHFOMKLGTMQ5","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":"4c14774a461aacf5f85a3926be72caaae0674f6b726b84c27dd6b0c7a2190826","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2015-09-02T05:49:19Z","title_canon_sha256":"7d2e4575cf8f9490d2977145e7e7c0c74247972dd92ebefb25e35b6e1c00d901"},"schema_version":"1.0","source":{"id":"1509.00564","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1509.00564","created_at":"2026-05-18T01:34:06Z"},{"alias_kind":"arxiv_version","alias_value":"1509.00564v1","created_at":"2026-05-18T01:34:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1509.00564","created_at":"2026-05-18T01:34:06Z"},{"alias_kind":"pith_short_12","alias_value":"6PF3U2IGU6PF","created_at":"2026-05-18T12:29:07Z"},{"alias_kind":"pith_short_16","alias_value":"6PF3U2IGU6PFPWXH","created_at":"2026-05-18T12:29:07Z"},{"alias_kind":"pith_short_8","alias_value":"6PF3U2IG","created_at":"2026-05-18T12:29:07Z"}],"graph_snapshots":[{"event_id":"sha256:f691d9940cde030b5cc30bb87c372357597ca7661a30a288d551dae8e48622e3","target":"graph","created_at":"2026-05-18T01:34:06Z","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":"Nyquist wavelength division (de)multiplexing (N-WDM) is a highly promising technique for next-generation high-speed elastic networks. In N-WDM, Nyquist filtering is an essential function that governs the channel spectral efficiency. However, most Nyquist filter implementations to date require either expensive, power-hungry digital electronics or complex arrangements of bulky optical components, hindering their adoption for important functions such as Nyquist channel shaping and reconfigurable optical add-drop multiplexers (ROADMs) for Nyquist super-channels. Here, we present a distinctive solu","authors_text":"Arne Leinse, Arthur J. Lowery, Bill Corcoran, Chen Zhu, Chris G. H. Roeloffzen, Jochen Schr\\\"oder, Leimeng Zhuang, Maurizio Burla","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2015-09-02T05:49:19Z","title":"Full-C-band, sub-GHz-resolution Nyquist-filtering (de)interleaver in photonic integrated circuit"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1509.00564","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:b799d7d7683b83d0c01090af7ce6f594a608a7d2a32bc85de19f1b48a622a847","target":"record","created_at":"2026-05-18T01:34:06Z","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":"4c14774a461aacf5f85a3926be72caaae0674f6b726b84c27dd6b0c7a2190826","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2015-09-02T05:49:19Z","title_canon_sha256":"7d2e4575cf8f9490d2977145e7e7c0c74247972dd92ebefb25e35b6e1c00d901"},"schema_version":"1.0","source":{"id":"1509.00564","kind":"arxiv","version":1}},"canonical_sha256":"f3cbba6906a79e57dae72b98a59a6c8742f894df95714b6e9ad26583bf1f9a00","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f3cbba6906a79e57dae72b98a59a6c8742f894df95714b6e9ad26583bf1f9a00","first_computed_at":"2026-05-18T01:34:06.833096Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:34:06.833096Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"BaRf3kGvk0pIhoX3dbbXT4VneNa72JTlZPEKk0L2HiwlXKe3WXTkOWUrLM+1KmM+6RlwC5Fv4ioPwN8lcOnYDg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:34:06.833571Z","signed_message":"canonical_sha256_bytes"},"source_id":"1509.00564","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b799d7d7683b83d0c01090af7ce6f594a608a7d2a32bc85de19f1b48a622a847","sha256:f691d9940cde030b5cc30bb87c372357597ca7661a30a288d551dae8e48622e3"],"state_sha256":"884166fd299c02bff070d74517fd93cdb686334bffc2d9b6450e769b2ae7b4c3"}