{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:2UGBB4OR25EPKUBPEC76BPUYQJ","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":"0c647e8e4f04d014f3fda7e5c0980fd572b80e2b8f2391f745a6f5ff955fa4bc","cross_cats_sorted":["cs.NI"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2018-01-31T17:45:49Z","title_canon_sha256":"eee2d173f38ba0651497d53d1edb324fcff5d27fa55c109982891ef7e2b5b465"},"schema_version":"1.0","source":{"id":"1801.10574","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1801.10574","created_at":"2026-05-18T00:24:40Z"},{"alias_kind":"arxiv_version","alias_value":"1801.10574v1","created_at":"2026-05-18T00:24:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1801.10574","created_at":"2026-05-18T00:24:40Z"},{"alias_kind":"pith_short_12","alias_value":"2UGBB4OR25EP","created_at":"2026-05-18T12:32:02Z"},{"alias_kind":"pith_short_16","alias_value":"2UGBB4OR25EPKUBP","created_at":"2026-05-18T12:32:02Z"},{"alias_kind":"pith_short_8","alias_value":"2UGBB4OR","created_at":"2026-05-18T12:32:02Z"}],"graph_snapshots":[{"event_id":"sha256:ba67896e23f5017c591b6f386b248f1dbcc409805065317f427868f327d0076e","target":"graph","created_at":"2026-05-18T00:24:40Z","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":"For a future 5G Ethernet-based fronthaul architecture, 100G trunk lines of a transmission distance up to 10 km standard single mode fiber (SSMF) in combination with cheap grey optics to daisy chain cell site network interfaces are a promising cost- and power-efficient solution. For such a scenario, different intensity modulation and direct detect (IMDD) Formats at a data rate of 112 Gb/s, namely Nyquist four-level pulse amplitude modulation (PAM4), discrete multi-tone Transmission (DMT) and partial-response (PR) PAM4 are experimentally investigated, using a low-cost electro-absorption modulate","authors_text":"Annika Dochhan, Daniel Muench, Helmut Griesser, Idelfonso Tafur Monroy, Joerg-Peter Elbers, Juan Jose Vegas Olmos, Michael Eiselt, Nicklas Eiselt","cross_cats":["cs.NI"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2018-01-31T17:45:49Z","title":"Performance Comparison of 112 Gb/s DMT, Nyquist PAM4 and Partial-Response PAM4 for Future 5G Ethernet-based Fronthaul Architecture"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1801.10574","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:a178e2de90201150511fe1bbeac6b3c044393c8a94469bb3cae046ddfac3707e","target":"record","created_at":"2026-05-18T00:24:40Z","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":"0c647e8e4f04d014f3fda7e5c0980fd572b80e2b8f2391f745a6f5ff955fa4bc","cross_cats_sorted":["cs.NI"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2018-01-31T17:45:49Z","title_canon_sha256":"eee2d173f38ba0651497d53d1edb324fcff5d27fa55c109982891ef7e2b5b465"},"schema_version":"1.0","source":{"id":"1801.10574","kind":"arxiv","version":1}},"canonical_sha256":"d50c10f1d1d748f5502f20bfe0be988240af60fc2f1c57dfaec516a8847ec52b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d50c10f1d1d748f5502f20bfe0be988240af60fc2f1c57dfaec516a8847ec52b","first_computed_at":"2026-05-18T00:24:40.451806Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:24:40.451806Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"b8g/f5+eEndMHLLA2y0WpX6iaEhmMJKXBWjq1TAYRZSZWE8JFfjcvyS4S+kKk7Q0zun3JLoLpfrm8QXMsAhRAA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:24:40.452493Z","signed_message":"canonical_sha256_bytes"},"source_id":"1801.10574","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a178e2de90201150511fe1bbeac6b3c044393c8a94469bb3cae046ddfac3707e","sha256:ba67896e23f5017c591b6f386b248f1dbcc409805065317f427868f327d0076e"],"state_sha256":"f1528ddba89ef0a803faa360fed01da9fb0445667ddf95280c987a4febefeba3"}