{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2024:ILYYY2Y56OJGKOLRZBZISCBUFG","short_pith_number":"pith:ILYYY2Y5","schema_version":"1.0","canonical_sha256":"42f18c6b1df392653971c87289083429a8c2703caf5c3c29ced0576c58775098","source":{"kind":"arxiv","id":"2401.05170","version":1},"attestation_state":"computed","paper":{"title":"TRTAR: Transmissive RIS-assisted Through-the-wall Human Activity Recognition","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.SY"],"primary_cat":"eess.SY","authors_text":"Jianan Zhang, Junshuo Liu, Robert Caiming Qiu, Rujing Xiong, Yunlong Huang","submitted_at":"2024-01-10T14:05:53Z","abstract_excerpt":"Device-free human activity recognition plays a pivotal role in wireless sensing. However, current systems often fail to accommodate signal transmission through walls or necessitate dedicated noise removal algorithms. To overcome these limitations, we introduce TRTAR: a device-free passive human activity recognition system integrated with a transmissive reconfigurable intelligent surface (RIS). TRTAR eliminates the necessity for dedicated devices or noise removal algorithms, while specifically addressing signal propagation through walls. Unlike existing approaches, TRTAR solely employs a transm"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"2401.05170","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SY","submitted_at":"2024-01-10T14:05:53Z","cross_cats_sorted":["cs.SY"],"title_canon_sha256":"09c5f0e43a97672c06e5e0e9296b6439e2392b9ef5f47bcec5b10fd680a5ef6f","abstract_canon_sha256":"ff1d9bccd48942146260bbcefe6bf02df54038876fbffe6c11b437f3cb88fde9"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T09:15:07.653489Z","signature_b64":"xfrvqKRPEoyfWQHrcHWo3xKzqnKQkAcarv+AvqBbBGm3gCedteOkZO15A1kPEzBT4t6l7EQxrZqQ7qhkHDHnAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"42f18c6b1df392653971c87289083429a8c2703caf5c3c29ced0576c58775098","last_reissued_at":"2026-07-05T09:15:07.653052Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T09:15:07.653052Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"TRTAR: Transmissive RIS-assisted Through-the-wall Human Activity Recognition","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.SY"],"primary_cat":"eess.SY","authors_text":"Jianan Zhang, Junshuo Liu, Robert Caiming Qiu, Rujing Xiong, Yunlong Huang","submitted_at":"2024-01-10T14:05:53Z","abstract_excerpt":"Device-free human activity recognition plays a pivotal role in wireless sensing. However, current systems often fail to accommodate signal transmission through walls or necessitate dedicated noise removal algorithms. To overcome these limitations, we introduce TRTAR: a device-free passive human activity recognition system integrated with a transmissive reconfigurable intelligent surface (RIS). TRTAR eliminates the necessity for dedicated devices or noise removal algorithms, while specifically addressing signal propagation through walls. Unlike existing approaches, TRTAR solely employs a transm"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2401.05170","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2401.05170/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"aliases":[{"alias_kind":"arxiv","alias_value":"2401.05170","created_at":"2026-07-05T09:15:07.653108+00:00"},{"alias_kind":"arxiv_version","alias_value":"2401.05170v1","created_at":"2026-07-05T09:15:07.653108+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2401.05170","created_at":"2026-07-05T09:15:07.653108+00:00"},{"alias_kind":"pith_short_12","alias_value":"ILYYY2Y56OJG","created_at":"2026-07-05T09:15:07.653108+00:00"},{"alias_kind":"pith_short_16","alias_value":"ILYYY2Y56OJGKOLR","created_at":"2026-07-05T09:15:07.653108+00:00"},{"alias_kind":"pith_short_8","alias_value":"ILYYY2Y5","created_at":"2026-07-05T09:15:07.653108+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/ILYYY2Y56OJGKOLRZBZISCBUFG","json":"https://pith.science/pith/ILYYY2Y56OJGKOLRZBZISCBUFG.json","graph_json":"https://pith.science/api/pith-number/ILYYY2Y56OJGKOLRZBZISCBUFG/graph.json","events_json":"https://pith.science/api/pith-number/ILYYY2Y56OJGKOLRZBZISCBUFG/events.json","paper":"https://pith.science/paper/ILYYY2Y5"},"agent_actions":{"view_html":"https://pith.science/pith/ILYYY2Y56OJGKOLRZBZISCBUFG","download_json":"https://pith.science/pith/ILYYY2Y56OJGKOLRZBZISCBUFG.json","view_paper":"https://pith.science/paper/ILYYY2Y5","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2401.05170&json=true","fetch_graph":"https://pith.science/api/pith-number/ILYYY2Y56OJGKOLRZBZISCBUFG/graph.json","fetch_events":"https://pith.science/api/pith-number/ILYYY2Y56OJGKOLRZBZISCBUFG/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/ILYYY2Y56OJGKOLRZBZISCBUFG/action/timestamp_anchor","attest_storage":"https://pith.science/pith/ILYYY2Y56OJGKOLRZBZISCBUFG/action/storage_attestation","attest_author":"https://pith.science/pith/ILYYY2Y56OJGKOLRZBZISCBUFG/action/author_attestation","sign_citation":"https://pith.science/pith/ILYYY2Y56OJGKOLRZBZISCBUFG/action/citation_signature","submit_replication":"https://pith.science/pith/ILYYY2Y56OJGKOLRZBZISCBUFG/action/replication_record"}},"created_at":"2026-07-05T09:15:07.653108+00:00","updated_at":"2026-07-05T09:15:07.653108+00:00"}