{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:A4BBZEPRWC3GIQ2QCTNYNOLX52","short_pith_number":"pith:A4BBZEPR","canonical_record":{"source":{"id":"2204.04540","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.CR","submitted_at":"2022-04-09T20:09:30Z","cross_cats_sorted":["cs.NI","cs.SE"],"title_canon_sha256":"7695f798b081385c1ed5db7be10a7e39d89938279b971e5490bcf287f4fc5ea2","abstract_canon_sha256":"069634c7325798aed6d6ef8b54a2fcce8cbc2c7390b2c32e72e6588300334473"},"schema_version":"1.0"},"canonical_sha256":"07021c91f1b0b664435014db86b977ee8814d8129b8732e30e4a6014f8b5515a","source":{"kind":"arxiv","id":"2204.04540","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2204.04540","created_at":"2026-07-05T04:24:40Z"},{"alias_kind":"arxiv_version","alias_value":"2204.04540v2","created_at":"2026-07-05T04:24:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2204.04540","created_at":"2026-07-05T04:24:40Z"},{"alias_kind":"pith_short_12","alias_value":"A4BBZEPRWC3G","created_at":"2026-07-05T04:24:40Z"},{"alias_kind":"pith_short_16","alias_value":"A4BBZEPRWC3GIQ2Q","created_at":"2026-07-05T04:24:40Z"},{"alias_kind":"pith_short_8","alias_value":"A4BBZEPR","created_at":"2026-07-05T04:24:40Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:A4BBZEPRWC3GIQ2QCTNYNOLX52","target":"record","payload":{"canonical_record":{"source":{"id":"2204.04540","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.CR","submitted_at":"2022-04-09T20:09:30Z","cross_cats_sorted":["cs.NI","cs.SE"],"title_canon_sha256":"7695f798b081385c1ed5db7be10a7e39d89938279b971e5490bcf287f4fc5ea2","abstract_canon_sha256":"069634c7325798aed6d6ef8b54a2fcce8cbc2c7390b2c32e72e6588300334473"},"schema_version":"1.0"},"canonical_sha256":"07021c91f1b0b664435014db86b977ee8814d8129b8732e30e4a6014f8b5515a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T04:24:40.219398Z","signature_b64":"4q6TumiZZ81dfJT48Tq3NVVfRewPzjEXIlFbxpz/1rdsUeUE1E5ek7pbN2lO/FdqatY6HJe6W3lzi4QC/vflCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"07021c91f1b0b664435014db86b977ee8814d8129b8732e30e4a6014f8b5515a","last_reissued_at":"2026-07-05T04:24:40.218947Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T04:24:40.218947Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2204.04540","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T04:24:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lTzb9tVryvHMP61Fb9U6bTsvj985QNij3hxmzg6Hj05YRS3JMxAM4n/eF8TxnXsDwSexZ3vYGSm8cLwHkRoqCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-28T13:21:27.720688Z"},"content_sha256":"c8ddfe81914bdf2da05111cb9b3b6c5c6b56381103a14721d2412356c47bcd15","schema_version":"1.0","event_id":"sha256:c8ddfe81914bdf2da05111cb9b3b6c5c6b56381103a14721d2412356c47bcd15"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:A4BBZEPRWC3GIQ2QCTNYNOLX52","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Peekaboo: A Hub-Based Approach to Enable Transparency in Data Processing within Smart Homes (Extended Technical Report)","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","headline":"","cross_cats":["cs.NI","cs.SE"],"primary_cat":"cs.CR","authors_text":"David Hwang, Gram Liu, Haojian Jin, Jason I. Hong, Swarun Kumar, Yuvraj Agarwal","submitted_at":"2022-04-09T20:09:30Z","abstract_excerpt":"We present Peekaboo, a new privacy-sensitive architecture for smart homes that leverages an in-home hub to pre-process and minimize outgoing data in a structured and enforceable manner before sending it to external cloud servers. Peekaboo's key innovations are (1) abstracting common data pre-processing functionality into a small and fixed set of chainable operators, and (2) requiring that developers explicitly declare desired data collection behaviors (e.g., data granularity, destinations, conditions) in an application manifest, which also specifies how the operators are chained together. Give"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2204.04540","kind":"arxiv","version":2},"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/2204.04540/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":"2026-07-05T04:24:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ChWW/AwtsKNVyZBCQ3R28D0VEe9QcYQHr60d9/rLFjC8SlBTzOMAMY5+jCkUu0BGA3wTpNSmF3OL+GTOuD8ZCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-28T13:21:27.721083Z"},"content_sha256":"bfe12caa9805c61023a69aff4a77c5ba088d22e90f3eec2a188cab6c2f05cc98","schema_version":"1.0","event_id":"sha256:bfe12caa9805c61023a69aff4a77c5ba088d22e90f3eec2a188cab6c2f05cc98"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/A4BBZEPRWC3GIQ2QCTNYNOLX52/bundle.json","state_url":"https://pith.science/pith/A4BBZEPRWC3GIQ2QCTNYNOLX52/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/A4BBZEPRWC3GIQ2QCTNYNOLX52/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":"2026-07-28T13:21:27Z","links":{"resolver":"https://pith.science/pith/A4BBZEPRWC3GIQ2QCTNYNOLX52","bundle":"https://pith.science/pith/A4BBZEPRWC3GIQ2QCTNYNOLX52/bundle.json","state":"https://pith.science/pith/A4BBZEPRWC3GIQ2QCTNYNOLX52/state.json","well_known_bundle":"https://pith.science/.well-known/pith/A4BBZEPRWC3GIQ2QCTNYNOLX52/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:A4BBZEPRWC3GIQ2QCTNYNOLX52","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":"069634c7325798aed6d6ef8b54a2fcce8cbc2c7390b2c32e72e6588300334473","cross_cats_sorted":["cs.NI","cs.SE"],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.CR","submitted_at":"2022-04-09T20:09:30Z","title_canon_sha256":"7695f798b081385c1ed5db7be10a7e39d89938279b971e5490bcf287f4fc5ea2"},"schema_version":"1.0","source":{"id":"2204.04540","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2204.04540","created_at":"2026-07-05T04:24:40Z"},{"alias_kind":"arxiv_version","alias_value":"2204.04540v2","created_at":"2026-07-05T04:24:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2204.04540","created_at":"2026-07-05T04:24:40Z"},{"alias_kind":"pith_short_12","alias_value":"A4BBZEPRWC3G","created_at":"2026-07-05T04:24:40Z"},{"alias_kind":"pith_short_16","alias_value":"A4BBZEPRWC3GIQ2Q","created_at":"2026-07-05T04:24:40Z"},{"alias_kind":"pith_short_8","alias_value":"A4BBZEPR","created_at":"2026-07-05T04:24:40Z"}],"graph_snapshots":[{"event_id":"sha256:bfe12caa9805c61023a69aff4a77c5ba088d22e90f3eec2a188cab6c2f05cc98","target":"graph","created_at":"2026-07-05T04:24:40Z","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/2204.04540/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present Peekaboo, a new privacy-sensitive architecture for smart homes that leverages an in-home hub to pre-process and minimize outgoing data in a structured and enforceable manner before sending it to external cloud servers. Peekaboo's key innovations are (1) abstracting common data pre-processing functionality into a small and fixed set of chainable operators, and (2) requiring that developers explicitly declare desired data collection behaviors (e.g., data granularity, destinations, conditions) in an application manifest, which also specifies how the operators are chained together. Give","authors_text":"David Hwang, Gram Liu, Haojian Jin, Jason I. Hong, Swarun Kumar, Yuvraj Agarwal","cross_cats":["cs.NI","cs.SE"],"headline":"","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.CR","submitted_at":"2022-04-09T20:09:30Z","title":"Peekaboo: A Hub-Based Approach to Enable Transparency in Data Processing within Smart Homes (Extended Technical Report)"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2204.04540","kind":"arxiv","version":2},"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:c8ddfe81914bdf2da05111cb9b3b6c5c6b56381103a14721d2412356c47bcd15","target":"record","created_at":"2026-07-05T04:24:40Z","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":"069634c7325798aed6d6ef8b54a2fcce8cbc2c7390b2c32e72e6588300334473","cross_cats_sorted":["cs.NI","cs.SE"],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.CR","submitted_at":"2022-04-09T20:09:30Z","title_canon_sha256":"7695f798b081385c1ed5db7be10a7e39d89938279b971e5490bcf287f4fc5ea2"},"schema_version":"1.0","source":{"id":"2204.04540","kind":"arxiv","version":2}},"canonical_sha256":"07021c91f1b0b664435014db86b977ee8814d8129b8732e30e4a6014f8b5515a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"07021c91f1b0b664435014db86b977ee8814d8129b8732e30e4a6014f8b5515a","first_computed_at":"2026-07-05T04:24:40.218947Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:24:40.218947Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"4q6TumiZZ81dfJT48Tq3NVVfRewPzjEXIlFbxpz/1rdsUeUE1E5ek7pbN2lO/FdqatY6HJe6W3lzi4QC/vflCw==","signature_status":"signed_v1","signed_at":"2026-07-05T04:24:40.219398Z","signed_message":"canonical_sha256_bytes"},"source_id":"2204.04540","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c8ddfe81914bdf2da05111cb9b3b6c5c6b56381103a14721d2412356c47bcd15","sha256:bfe12caa9805c61023a69aff4a77c5ba088d22e90f3eec2a188cab6c2f05cc98"],"state_sha256":"097aa62df38f353c1788871f814b1e088066df8bad4df0c09bebc8951c30378a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lBZm+d0dbziMHsK0GSewTd7aoNNGYHIvjiU3XJ86QJgqWYsYqAikC1Be7zu9T6pYzEw/loC30NUmnVSOQ/xxCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-28T13:21:27.723590Z","bundle_sha256":"040f65c6376c3a05e24efbbeb2149b3e5d430bd9e95b98487e33d6832e857902"}}