{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:LP62RJXARTKI3BS3CB7P5T7DWD","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":"60bbca7689abba53cc7a3b6d312d738d08abd0a117cd8f3e70f3eaf811bedc59","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2020-01-07T04:44:02Z","title_canon_sha256":"563f5e1f37fdaaf74e40293dcd1d3354c2f52d34a3bc44cd411e1aee1b56b752"},"schema_version":"1.0","source":{"id":"2001.01888","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2001.01888","created_at":"2026-07-05T00:32:16Z"},{"alias_kind":"arxiv_version","alias_value":"2001.01888v1","created_at":"2026-07-05T00:32:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2001.01888","created_at":"2026-07-05T00:32:16Z"},{"alias_kind":"pith_short_12","alias_value":"LP62RJXARTKI","created_at":"2026-07-05T00:32:16Z"},{"alias_kind":"pith_short_16","alias_value":"LP62RJXARTKI3BS3","created_at":"2026-07-05T00:32:16Z"},{"alias_kind":"pith_short_8","alias_value":"LP62RJXA","created_at":"2026-07-05T00:32:16Z"}],"graph_snapshots":[{"event_id":"sha256:fca4111a2b804156f9b2604db0e9009afcd266eefca3b5ab53d0aae430a3f9fd","target":"graph","created_at":"2026-07-05T00:32:16Z","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/2001.01888/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In this paper, an indoor robot localization system based on Robot Operating System (ROS) and visible light communication (VLC) is presented. On the basis of our previous work, we innovatively designed a VLC localization and navigation package based on Robot Operating System (ROS), which contains the LED-ID detection and recognition method, the video target tracking algorithm and the double-lamp positioning algorithm. This package exploited the principle of double-lamp positioning and the loose coupling characteristics of the ROS system, which is implemented by loosely coupled ROS nodes. Conseq","authors_text":"Ruihong Cen, Shangsheng Wen, Shihuan Chen, Weipeng Guan, Wenyuan Hou, Zequn Tan","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2020-01-07T04:44:02Z","title":"Indoor Localization System of ROS mobile robot based on Visible Light Communication"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2001.01888","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:d879ad7e4af02ab59563295da49c35d08e1a9af690a65526edaec4a82c334e8e","target":"record","created_at":"2026-07-05T00:32:16Z","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":"60bbca7689abba53cc7a3b6d312d738d08abd0a117cd8f3e70f3eaf811bedc59","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2020-01-07T04:44:02Z","title_canon_sha256":"563f5e1f37fdaaf74e40293dcd1d3354c2f52d34a3bc44cd411e1aee1b56b752"},"schema_version":"1.0","source":{"id":"2001.01888","kind":"arxiv","version":1}},"canonical_sha256":"5bfda8a6e08cd48d865b107efecfe3b0d784b3c605f3300eddfe1be6fd29b6c9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5bfda8a6e08cd48d865b107efecfe3b0d784b3c605f3300eddfe1be6fd29b6c9","first_computed_at":"2026-07-05T00:32:16.103379Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:32:16.103379Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"2ACUp6s9MLFHHvVN2Y1yQyAvPLvO9yvSVGVxE4zCGw/TmCA12SBbqDR2pLJg99zT14EJC0d1vCj0vBEwT7ZUAw==","signature_status":"signed_v1","signed_at":"2026-07-05T00:32:16.103771Z","signed_message":"canonical_sha256_bytes"},"source_id":"2001.01888","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d879ad7e4af02ab59563295da49c35d08e1a9af690a65526edaec4a82c334e8e","sha256:fca4111a2b804156f9b2604db0e9009afcd266eefca3b5ab53d0aae430a3f9fd"],"state_sha256":"d39501aa8494cd1585e1ed885736d825666fd7881affac7ce1ae2e623573fd84"}