{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:EEPZJCXNGZUIWFEMZLKW2AR4WM","short_pith_number":"pith:EEPZJCXN","canonical_record":{"source":{"id":"2309.11957","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.HC","submitted_at":"2023-09-21T10:15:43Z","cross_cats_sorted":[],"title_canon_sha256":"76c6dd4a055cafc82dbfc02eb0395025531f211330a0287b36fc2ee10117e554","abstract_canon_sha256":"869ec4b327baee5d69ebe1b29d675feb21de3b6f5fcbb1df716ca36d7dc4ac3d"},"schema_version":"1.0"},"canonical_sha256":"211f948aed36688b148ccad56d023cb307945b10c59c710613e0deee65007bac","source":{"kind":"arxiv","id":"2309.11957","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2309.11957","created_at":"2026-07-05T06:52:56Z"},{"alias_kind":"arxiv_version","alias_value":"2309.11957v1","created_at":"2026-07-05T06:52:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2309.11957","created_at":"2026-07-05T06:52:56Z"},{"alias_kind":"pith_short_12","alias_value":"EEPZJCXNGZUI","created_at":"2026-07-05T06:52:56Z"},{"alias_kind":"pith_short_16","alias_value":"EEPZJCXNGZUIWFEM","created_at":"2026-07-05T06:52:56Z"},{"alias_kind":"pith_short_8","alias_value":"EEPZJCXN","created_at":"2026-07-05T06:52:56Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:EEPZJCXNGZUIWFEMZLKW2AR4WM","target":"record","payload":{"canonical_record":{"source":{"id":"2309.11957","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.HC","submitted_at":"2023-09-21T10:15:43Z","cross_cats_sorted":[],"title_canon_sha256":"76c6dd4a055cafc82dbfc02eb0395025531f211330a0287b36fc2ee10117e554","abstract_canon_sha256":"869ec4b327baee5d69ebe1b29d675feb21de3b6f5fcbb1df716ca36d7dc4ac3d"},"schema_version":"1.0"},"canonical_sha256":"211f948aed36688b148ccad56d023cb307945b10c59c710613e0deee65007bac","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T06:52:56.784817Z","signature_b64":"l84fr1wRMpCAvL6OAuWk2yJQimKFUSEkDW+kWvMC/52IQaBKQ1MK4M60Pwzvs2Qhi0/F9ixZA2aNplHiYJqpCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"211f948aed36688b148ccad56d023cb307945b10c59c710613e0deee65007bac","last_reissued_at":"2026-07-05T06:52:56.784299Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T06:52:56.784299Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2309.11957","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":"2026-07-05T06:52:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Fcup/jDYKZcUio4bDPL6GJU6oJpjsiFzAJSO8lAhvehQBjFp9g3qORHxZVrOCd0uUl1CdXttrS7qiJhP+2vYDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-08T18:44:46.799071Z"},"content_sha256":"2660cef293f080707c9e64603bb02c4f4af71ab59985c1418022d29f8e886a97","schema_version":"1.0","event_id":"sha256:2660cef293f080707c9e64603bb02c4f4af71ab59985c1418022d29f8e886a97"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:EEPZJCXNGZUIWFEMZLKW2AR4WM","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Continuous Multi-user Activity Tracking via Room-Scale mmWave Sensing","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.HC","authors_text":"Anirban Das, Argha Sen, Sandip Chakraborty, Swadhin Pradhan","submitted_at":"2023-09-21T10:15:43Z","abstract_excerpt":"Continuous detection of human activities and presence is essential for developing a pervasive interactive smart space. Existing literature lacks robust wireless sensing mechanisms capable of continuously monitoring multiple users' activities without prior knowledge of the environment. Developing such a mechanism requires simultaneous localization and tracking of multiple subjects. In addition, it requires identifying their activities at various scales, some being macro-scale activities like walking, squats, etc., while others are micro-scale activities like typing or sitting, etc. In this pape"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2309.11957","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/2309.11957/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":"2026-07-05T06:52:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OHrvY58lBwcaEaHrymlgwQOFirAsytw1xz/9Gkai7HFtBCbFBBby5vJt+ZljwArQ9EasYDl2s9ZURRDYVIDxCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-08T18:44:46.799460Z"},"content_sha256":"f9f841a84cf93542948debb9c83737be961e1376a6906cb200354c371bbbf940","schema_version":"1.0","event_id":"sha256:f9f841a84cf93542948debb9c83737be961e1376a6906cb200354c371bbbf940"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/EEPZJCXNGZUIWFEMZLKW2AR4WM/bundle.json","state_url":"https://pith.science/pith/EEPZJCXNGZUIWFEMZLKW2AR4WM/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/EEPZJCXNGZUIWFEMZLKW2AR4WM/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":"2026-07-08T18:44:46Z","links":{"resolver":"https://pith.science/pith/EEPZJCXNGZUIWFEMZLKW2AR4WM","bundle":"https://pith.science/pith/EEPZJCXNGZUIWFEMZLKW2AR4WM/bundle.json","state":"https://pith.science/pith/EEPZJCXNGZUIWFEMZLKW2AR4WM/state.json","well_known_bundle":"https://pith.science/.well-known/pith/EEPZJCXNGZUIWFEMZLKW2AR4WM/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:EEPZJCXNGZUIWFEMZLKW2AR4WM","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":"869ec4b327baee5d69ebe1b29d675feb21de3b6f5fcbb1df716ca36d7dc4ac3d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.HC","submitted_at":"2023-09-21T10:15:43Z","title_canon_sha256":"76c6dd4a055cafc82dbfc02eb0395025531f211330a0287b36fc2ee10117e554"},"schema_version":"1.0","source":{"id":"2309.11957","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2309.11957","created_at":"2026-07-05T06:52:56Z"},{"alias_kind":"arxiv_version","alias_value":"2309.11957v1","created_at":"2026-07-05T06:52:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2309.11957","created_at":"2026-07-05T06:52:56Z"},{"alias_kind":"pith_short_12","alias_value":"EEPZJCXNGZUI","created_at":"2026-07-05T06:52:56Z"},{"alias_kind":"pith_short_16","alias_value":"EEPZJCXNGZUIWFEM","created_at":"2026-07-05T06:52:56Z"},{"alias_kind":"pith_short_8","alias_value":"EEPZJCXN","created_at":"2026-07-05T06:52:56Z"}],"graph_snapshots":[{"event_id":"sha256:f9f841a84cf93542948debb9c83737be961e1376a6906cb200354c371bbbf940","target":"graph","created_at":"2026-07-05T06:52:56Z","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/2309.11957/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Continuous detection of human activities and presence is essential for developing a pervasive interactive smart space. Existing literature lacks robust wireless sensing mechanisms capable of continuously monitoring multiple users' activities without prior knowledge of the environment. Developing such a mechanism requires simultaneous localization and tracking of multiple subjects. In addition, it requires identifying their activities at various scales, some being macro-scale activities like walking, squats, etc., while others are micro-scale activities like typing or sitting, etc. In this pape","authors_text":"Anirban Das, Argha Sen, Sandip Chakraborty, Swadhin Pradhan","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.HC","submitted_at":"2023-09-21T10:15:43Z","title":"Continuous Multi-user Activity Tracking via Room-Scale mmWave Sensing"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2309.11957","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":"sha256:2660cef293f080707c9e64603bb02c4f4af71ab59985c1418022d29f8e886a97","target":"record","created_at":"2026-07-05T06:52:56Z","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":"869ec4b327baee5d69ebe1b29d675feb21de3b6f5fcbb1df716ca36d7dc4ac3d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.HC","submitted_at":"2023-09-21T10:15:43Z","title_canon_sha256":"76c6dd4a055cafc82dbfc02eb0395025531f211330a0287b36fc2ee10117e554"},"schema_version":"1.0","source":{"id":"2309.11957","kind":"arxiv","version":1}},"canonical_sha256":"211f948aed36688b148ccad56d023cb307945b10c59c710613e0deee65007bac","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"211f948aed36688b148ccad56d023cb307945b10c59c710613e0deee65007bac","first_computed_at":"2026-07-05T06:52:56.784299Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T06:52:56.784299Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"l84fr1wRMpCAvL6OAuWk2yJQimKFUSEkDW+kWvMC/52IQaBKQ1MK4M60Pwzvs2Qhi0/F9ixZA2aNplHiYJqpCQ==","signature_status":"signed_v1","signed_at":"2026-07-05T06:52:56.784817Z","signed_message":"canonical_sha256_bytes"},"source_id":"2309.11957","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2660cef293f080707c9e64603bb02c4f4af71ab59985c1418022d29f8e886a97","sha256:f9f841a84cf93542948debb9c83737be961e1376a6906cb200354c371bbbf940"],"state_sha256":"c9cb499670c6a0e4e861b24e00b9bb792783c68b6dcb02cc814094c83e015245"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"H+bP/+QPi+4le+Fr1NWUCEqWKhJiyG9YCRzRX6M8KGT8MTIfxjdK7HKeD+Gjh8NEjA6dxJboROGHuTqLOKPYCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-08T18:44:46.801701Z","bundle_sha256":"87aba8b6c95034d9970284a8c4b0d8839d6abe555c7ca72041ccf499c6b8ed26"}}