{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:D4UYDZRDNAVUNRPT5UME2P5TUA","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":"8a872a16c71c5e6a2c2af3164afa184b70f4c36669e0b09257c8fa45dc5722e3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2020-06-08T08:44:10Z","title_canon_sha256":"7b65c9b319093f2504d2c4d7332f09fe6730f2dc428b1f220a0b78a3ad2e5ec0"},"schema_version":"1.0","source":{"id":"2006.04415","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2006.04415","created_at":"2026-07-05T01:08:38Z"},{"alias_kind":"arxiv_version","alias_value":"2006.04415v1","created_at":"2026-07-05T01:08:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2006.04415","created_at":"2026-07-05T01:08:38Z"},{"alias_kind":"pith_short_12","alias_value":"D4UYDZRDNAVU","created_at":"2026-07-05T01:08:38Z"},{"alias_kind":"pith_short_16","alias_value":"D4UYDZRDNAVUNRPT","created_at":"2026-07-05T01:08:38Z"},{"alias_kind":"pith_short_8","alias_value":"D4UYDZRD","created_at":"2026-07-05T01:08:38Z"}],"graph_snapshots":[{"event_id":"sha256:ef0189919b643984cce0003009989678e684684f353c59b3fd3844dddb4a831b","target":"graph","created_at":"2026-07-05T01:08:38Z","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/2006.04415/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"DMT at 25 Gbit/s, 50 Gbit/s and 100 Gbit/s in passive systems with electro-absorption modulators is investigated. Transmission in C- and O-band are compared, yielding up to 22 km reach, 100 Gbit/s in O-band. All results are obtained with a real-time signal processing ASIC.","authors_text":"Annika Dochhan, Helmut Griesser, J\\\"org-Peter Elbers, Michael H. Eiselt, Tomislav Drenski","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2020-06-08T08:44:10Z","title":"Real-time discrete multi-tone transmission for passive optical networks in C- and O-band"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2006.04415","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":"sha256:3a6d7041e3344da5783c540d2a59b8071638ca8d598e4d1caea5bef67c194c82","target":"record","created_at":"2026-07-05T01:08:38Z","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":"8a872a16c71c5e6a2c2af3164afa184b70f4c36669e0b09257c8fa45dc5722e3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2020-06-08T08:44:10Z","title_canon_sha256":"7b65c9b319093f2504d2c4d7332f09fe6730f2dc428b1f220a0b78a3ad2e5ec0"},"schema_version":"1.0","source":{"id":"2006.04415","kind":"arxiv","version":1}},"canonical_sha256":"1f2981e623682b46c5f3ed184d3fb3a0049c3602225b310919008397e8add3ae","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1f2981e623682b46c5f3ed184d3fb3a0049c3602225b310919008397e8add3ae","first_computed_at":"2026-07-05T01:08:38.964978Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:08:38.964978Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"GzgCDFUyJ3FeKA0e7t5FDePJlCuHl6wC31YEwQWKzAZWgx8CLRGxNoWqyL5EcTqr4aFhpqbtj/ESSPNlMEXDDA==","signature_status":"signed_v1","signed_at":"2026-07-05T01:08:38.965368Z","signed_message":"canonical_sha256_bytes"},"source_id":"2006.04415","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3a6d7041e3344da5783c540d2a59b8071638ca8d598e4d1caea5bef67c194c82","sha256:ef0189919b643984cce0003009989678e684684f353c59b3fd3844dddb4a831b"],"state_sha256":"bc95c0d65913baa04836d74fc6edb2faad751a14850b2da56afcee96570ff058"}