{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:GCYGWKERNNXMJ7UDYW6OFUU3QF","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":"d0636bb295a6cb8a58197dfbf1dc7a1bb582b5266d9a54a800fb77884d165f78","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2018-09-06T11:53:36Z","title_canon_sha256":"0dee6412b9f4f0c9b245fafb8735d1c36b6223cdcfb13fc16cc1fc52790f5ea5"},"schema_version":"1.0","source":{"id":"1809.01930","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1809.01930","created_at":"2026-05-18T00:00:43Z"},{"alias_kind":"arxiv_version","alias_value":"1809.01930v3","created_at":"2026-05-18T00:00:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1809.01930","created_at":"2026-05-18T00:00:43Z"},{"alias_kind":"pith_short_12","alias_value":"GCYGWKERNNXM","created_at":"2026-05-18T12:32:25Z"},{"alias_kind":"pith_short_16","alias_value":"GCYGWKERNNXMJ7UD","created_at":"2026-05-18T12:32:25Z"},{"alias_kind":"pith_short_8","alias_value":"GCYGWKER","created_at":"2026-05-18T12:32:25Z"}],"graph_snapshots":[{"event_id":"sha256:a6172c81783a4a9b4203fb0386b617802ad71b0a56b696177fcc27f9fb760f7b","target":"graph","created_at":"2026-05-18T00:00:43Z","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":"Visible light communication (VLC) builds upon the dual use of existing lighting infrastructure for wireless data transmission. VLC has recently gained interest as cost-effective, secure, and energy-efficient wireless access technology particularly for indoor user-dense environments. While initial studies in this area are mainly limited to single-user point-to-point links, more recent efforts have focused on multi-user VLC systems in an effort to transform VLC into a scalable and fully networked wireless technology. In this paper, we provide a comprehensive overview of multi-user VLC systems di","authors_text":"IEEE), Murat Uysal, Omar Maraqa, Saad Al-Ahmadi, Sadiq M. Sait, (Senior Member","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2018-09-06T11:53:36Z","title":"Multi-User Visible Light Communications: State-of-the-Art and Future Directions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1809.01930","kind":"arxiv","version":3},"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":"sha256:97cf6bc3f30f53432a3e03924f0b796fbf08bbeaf1b5be14a767d3acf826d1c8","target":"record","created_at":"2026-05-18T00:00:43Z","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":"d0636bb295a6cb8a58197dfbf1dc7a1bb582b5266d9a54a800fb77884d165f78","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2018-09-06T11:53:36Z","title_canon_sha256":"0dee6412b9f4f0c9b245fafb8735d1c36b6223cdcfb13fc16cc1fc52790f5ea5"},"schema_version":"1.0","source":{"id":"1809.01930","kind":"arxiv","version":3}},"canonical_sha256":"30b06b28916b6ec4fe83c5bce2d29b814d62ad28d1fc50f8e88742ee2b80268c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"30b06b28916b6ec4fe83c5bce2d29b814d62ad28d1fc50f8e88742ee2b80268c","first_computed_at":"2026-05-18T00:00:43.071682Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:00:43.071682Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Q/tw3l5EvLXzArCGM+CLUAsRD6WLyJ1yRtkeqPMj1b8LltZgWuIwQ790+tJvyr8g5Hf50GLqfH/XSmP5z/liDw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:00:43.072079Z","signed_message":"canonical_sha256_bytes"},"source_id":"1809.01930","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:97cf6bc3f30f53432a3e03924f0b796fbf08bbeaf1b5be14a767d3acf826d1c8","sha256:a6172c81783a4a9b4203fb0386b617802ad71b0a56b696177fcc27f9fb760f7b"],"state_sha256":"eb2122daa5aa9b40ca3a2fb6c14deccfcd36a44e9c012a0d420dbc554ddf0e90"}