{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:EHKS5LHMCPQLMM4GTCDA2W2W7A","short_pith_number":"pith:EHKS5LHM","canonical_record":{"source":{"id":"2203.12424","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NI","submitted_at":"2021-12-31T15:45:51Z","cross_cats_sorted":[],"title_canon_sha256":"ad3fe3879e50f01af8748edd812202d01f25f0f9590e18aca638d58ebe624942","abstract_canon_sha256":"7d3b6784fec67493c9f37d285fa2250f1549717bd1840204cd9a522f2e619393"},"schema_version":"1.0"},"canonical_sha256":"21d52eacec13e0b6338698860d5b56f836d72287d8f2870221dfa65ee913ddca","source":{"kind":"arxiv","id":"2203.12424","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2203.12424","created_at":"2026-07-05T04:07:59Z"},{"alias_kind":"arxiv_version","alias_value":"2203.12424v1","created_at":"2026-07-05T04:07:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2203.12424","created_at":"2026-07-05T04:07:59Z"},{"alias_kind":"pith_short_12","alias_value":"EHKS5LHMCPQL","created_at":"2026-07-05T04:07:59Z"},{"alias_kind":"pith_short_16","alias_value":"EHKS5LHMCPQLMM4G","created_at":"2026-07-05T04:07:59Z"},{"alias_kind":"pith_short_8","alias_value":"EHKS5LHM","created_at":"2026-07-05T04:07:59Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:EHKS5LHMCPQLMM4GTCDA2W2W7A","target":"record","payload":{"canonical_record":{"source":{"id":"2203.12424","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NI","submitted_at":"2021-12-31T15:45:51Z","cross_cats_sorted":[],"title_canon_sha256":"ad3fe3879e50f01af8748edd812202d01f25f0f9590e18aca638d58ebe624942","abstract_canon_sha256":"7d3b6784fec67493c9f37d285fa2250f1549717bd1840204cd9a522f2e619393"},"schema_version":"1.0"},"canonical_sha256":"21d52eacec13e0b6338698860d5b56f836d72287d8f2870221dfa65ee913ddca","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T04:07:59.282266Z","signature_b64":"GeaA9GkBSUsHJvP5RNcnda59cwsY89Oq1ho/uxLdIOsXPT/NZP0qwSxgcC8xHN2ZsRn7+Ftr8NVdYgZEL5jXAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"21d52eacec13e0b6338698860d5b56f836d72287d8f2870221dfa65ee913ddca","last_reissued_at":"2026-07-05T04:07:59.281938Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T04:07:59.281938Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2203.12424","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T04:07:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TVV9fszFAplE7RQWPlmy1mFHbIVp1kDd4+v8ZMb57ESzbZ4uPZlasgSpBd6tV1iwLJDHR2AfmKVAoH9DrbVdAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-20T18:35:08.898345Z"},"content_sha256":"c908bf516e28ff087362fde0f699145e0c51653515f1ca1afaccf21a1dd074d5","schema_version":"1.0","event_id":"sha256:c908bf516e28ff087362fde0f699145e0c51653515f1ca1afaccf21a1dd074d5"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:EHKS5LHMCPQLMM4GTCDA2W2W7A","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A Survey about application based on RF signals","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.NI","authors_text":"Jiaren Xiao","submitted_at":"2021-12-31T15:45:51Z","abstract_excerpt":"With the popularity of commercial wireless devices, the research based on RF signal has developed rapidly in the past decade. RF signals have great advantages in environmental perception. Wireless signals are transmitted through the transmitter. With the propagation of these signals in the medium, they are reflected from different objects and people in space to the receiver. In this process, rich environmental perception information is carried. These ubiquitous perceptual information has rich application significance and bright prospects in the fields of indoor positioning, motion perception, "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2203.12424","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/2203.12424/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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T04:07:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"IZN4B52Gakh1m/1lnMgfDKSEjiWPM4GF1KZELE1+KaitTiXPgfbO/Znh3+bgHS0w6uGWpWh3bQ+O3rXSyQBkCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-20T18:35:08.899239Z"},"content_sha256":"2134c4f8dd1e3c83705ca012c444498457d877fe56a100153703e33a2e67adfc","schema_version":"1.0","event_id":"sha256:2134c4f8dd1e3c83705ca012c444498457d877fe56a100153703e33a2e67adfc"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/EHKS5LHMCPQLMM4GTCDA2W2W7A/bundle.json","state_url":"https://pith.science/pith/EHKS5LHMCPQLMM4GTCDA2W2W7A/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/EHKS5LHMCPQLMM4GTCDA2W2W7A/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-08-20T18:35:08Z","links":{"resolver":"https://pith.science/pith/EHKS5LHMCPQLMM4GTCDA2W2W7A","bundle":"https://pith.science/pith/EHKS5LHMCPQLMM4GTCDA2W2W7A/bundle.json","state":"https://pith.science/pith/EHKS5LHMCPQLMM4GTCDA2W2W7A/state.json","well_known_bundle":"https://pith.science/.well-known/pith/EHKS5LHMCPQLMM4GTCDA2W2W7A/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:EHKS5LHMCPQLMM4GTCDA2W2W7A","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":"7d3b6784fec67493c9f37d285fa2250f1549717bd1840204cd9a522f2e619393","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NI","submitted_at":"2021-12-31T15:45:51Z","title_canon_sha256":"ad3fe3879e50f01af8748edd812202d01f25f0f9590e18aca638d58ebe624942"},"schema_version":"1.0","source":{"id":"2203.12424","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2203.12424","created_at":"2026-07-05T04:07:59Z"},{"alias_kind":"arxiv_version","alias_value":"2203.12424v1","created_at":"2026-07-05T04:07:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2203.12424","created_at":"2026-07-05T04:07:59Z"},{"alias_kind":"pith_short_12","alias_value":"EHKS5LHMCPQL","created_at":"2026-07-05T04:07:59Z"},{"alias_kind":"pith_short_16","alias_value":"EHKS5LHMCPQLMM4G","created_at":"2026-07-05T04:07:59Z"},{"alias_kind":"pith_short_8","alias_value":"EHKS5LHM","created_at":"2026-07-05T04:07:59Z"}],"graph_snapshots":[{"event_id":"sha256:2134c4f8dd1e3c83705ca012c444498457d877fe56a100153703e33a2e67adfc","target":"graph","created_at":"2026-07-05T04:07:59Z","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/2203.12424/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"With the popularity of commercial wireless devices, the research based on RF signal has developed rapidly in the past decade. RF signals have great advantages in environmental perception. Wireless signals are transmitted through the transmitter. With the propagation of these signals in the medium, they are reflected from different objects and people in space to the receiver. In this process, rich environmental perception information is carried. These ubiquitous perceptual information has rich application significance and bright prospects in the fields of indoor positioning, motion perception, ","authors_text":"Jiaren Xiao","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NI","submitted_at":"2021-12-31T15:45:51Z","title":"A Survey about application based on RF signals"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2203.12424","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:c908bf516e28ff087362fde0f699145e0c51653515f1ca1afaccf21a1dd074d5","target":"record","created_at":"2026-07-05T04:07:59Z","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":"7d3b6784fec67493c9f37d285fa2250f1549717bd1840204cd9a522f2e619393","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NI","submitted_at":"2021-12-31T15:45:51Z","title_canon_sha256":"ad3fe3879e50f01af8748edd812202d01f25f0f9590e18aca638d58ebe624942"},"schema_version":"1.0","source":{"id":"2203.12424","kind":"arxiv","version":1}},"canonical_sha256":"21d52eacec13e0b6338698860d5b56f836d72287d8f2870221dfa65ee913ddca","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"21d52eacec13e0b6338698860d5b56f836d72287d8f2870221dfa65ee913ddca","first_computed_at":"2026-07-05T04:07:59.281938Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:07:59.281938Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"GeaA9GkBSUsHJvP5RNcnda59cwsY89Oq1ho/uxLdIOsXPT/NZP0qwSxgcC8xHN2ZsRn7+Ftr8NVdYgZEL5jXAg==","signature_status":"signed_v1","signed_at":"2026-07-05T04:07:59.282266Z","signed_message":"canonical_sha256_bytes"},"source_id":"2203.12424","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c908bf516e28ff087362fde0f699145e0c51653515f1ca1afaccf21a1dd074d5","sha256:2134c4f8dd1e3c83705ca012c444498457d877fe56a100153703e33a2e67adfc"],"state_sha256":"6a00cfe30eedea167f76028fbeb852e2da8b5b4afd9b4c4cf747740d9581a0eb"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7HPDDVGpEHhsCI8vU2Ncn1n7dJAhJq4Z6an9kY5yMPOYSgQgllz0rigIYd6XdeC47Tvuu8DDggeI8j9vFYLECw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-20T18:35:08.906102Z","bundle_sha256":"197a7b608afa0d78432aec8fa46e12ab0546d2be821c7a11fca47921f5960e11"}}