{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:RCTDAV6NLHJPCQGNIJNXUQMJPY","short_pith_number":"pith:RCTDAV6N","canonical_record":{"source":{"id":"2409.06203","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CR","submitted_at":"2024-09-10T04:15:39Z","cross_cats_sorted":["cs.CY","cs.NI"],"title_canon_sha256":"4bc1ebe3d3a28e895b4f5400d2a8f6396d42ef5ffffe4f2dc9a41d649546602d","abstract_canon_sha256":"f565d112a5b95e29e3f2e0e0971a23ccc04179ba7a0322dcbc79c772cd0f99a8"},"schema_version":"1.0"},"canonical_sha256":"88a63057cd59d2f140cd425b7a41897e35874abf309b3008aed2c6ad79e1efcd","source":{"kind":"arxiv","id":"2409.06203","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2409.06203","created_at":"2026-07-05T09:05:20Z"},{"alias_kind":"arxiv_version","alias_value":"2409.06203v1","created_at":"2026-07-05T09:05:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2409.06203","created_at":"2026-07-05T09:05:20Z"},{"alias_kind":"pith_short_12","alias_value":"RCTDAV6NLHJP","created_at":"2026-07-05T09:05:20Z"},{"alias_kind":"pith_short_16","alias_value":"RCTDAV6NLHJPCQGN","created_at":"2026-07-05T09:05:20Z"},{"alias_kind":"pith_short_8","alias_value":"RCTDAV6N","created_at":"2026-07-05T09:05:20Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:RCTDAV6NLHJPCQGNIJNXUQMJPY","target":"record","payload":{"canonical_record":{"source":{"id":"2409.06203","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CR","submitted_at":"2024-09-10T04:15:39Z","cross_cats_sorted":["cs.CY","cs.NI"],"title_canon_sha256":"4bc1ebe3d3a28e895b4f5400d2a8f6396d42ef5ffffe4f2dc9a41d649546602d","abstract_canon_sha256":"f565d112a5b95e29e3f2e0e0971a23ccc04179ba7a0322dcbc79c772cd0f99a8"},"schema_version":"1.0"},"canonical_sha256":"88a63057cd59d2f140cd425b7a41897e35874abf309b3008aed2c6ad79e1efcd","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T09:05:20.783829Z","signature_b64":"hWra8l/plwMpuwpKvETbZ8rmy23tCSpwYbBzECmWcVmtmn+lGbqmePxKccaARDRkE+6RCL+WTCnWMPfLzpYlAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"88a63057cd59d2f140cd425b7a41897e35874abf309b3008aed2c6ad79e1efcd","last_reissued_at":"2026-07-05T09:05:20.783482Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T09:05:20.783482Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2409.06203","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":"2026-07-05T09:05:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cdAnIDQIOEuAo1dcBM7FMHy1Y+voyO3CpIXa9MHiDn+XJBlEoIY1WT85ieoQu3xhLJxMVKxxu7ISadXTOa8gBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T09:18:23.445650Z"},"content_sha256":"706d649e0ed0470932cfcbca0d23e2c18cc0f8a4f9c49a57a51ae8d60f3e3635","schema_version":"1.0","event_id":"sha256:706d649e0ed0470932cfcbca0d23e2c18cc0f8a4f9c49a57a51ae8d60f3e3635"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:RCTDAV6NLHJPCQGNIJNXUQMJPY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Watching TV with the Second-Party: A First Look at Automatic Content Recognition Tracking in Smart TVs","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cs.CY","cs.NI"],"primary_cat":"cs.CR","authors_text":"Alexander D'Souza, Anna Maria Mandalari, Gianluca Anselmi, Patricia Callejo, Yash Vekaria, Zubair Shafiq","submitted_at":"2024-09-10T04:15:39Z","abstract_excerpt":"Smart TVs implement a unique tracking approach called Automatic Content Recognition (ACR) to profile viewing activity of their users. ACR is a Shazam-like technology that works by periodically capturing the content displayed on a TV's screen and matching it against a content library to detect what content is being displayed at any given point in time. While prior research has investigated third-party tracking in the smart TV ecosystem, it has not looked into second-party ACR tracking that is directly conducted by the smart TV platform. In this work, we conduct a black-box audit of ACR network "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2409.06203","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/2409.06203/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":"2026-07-05T09:05:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7mfnkmGYycKRzPhtre4Qno1xz798Z9DjpgWhAb7PV8NjE2zsUH8C3dhaxJQAZG5uG1Vi3PiFBjK4ZU6kDp1BCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T09:18:23.446168Z"},"content_sha256":"accf9ed8486afc5d6f8c800b04c4feb95278dfc41d25f9f06a8b891df6663320","schema_version":"1.0","event_id":"sha256:accf9ed8486afc5d6f8c800b04c4feb95278dfc41d25f9f06a8b891df6663320"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/RCTDAV6NLHJPCQGNIJNXUQMJPY/bundle.json","state_url":"https://pith.science/pith/RCTDAV6NLHJPCQGNIJNXUQMJPY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/RCTDAV6NLHJPCQGNIJNXUQMJPY/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":"2026-08-06T09:18:23Z","links":{"resolver":"https://pith.science/pith/RCTDAV6NLHJPCQGNIJNXUQMJPY","bundle":"https://pith.science/pith/RCTDAV6NLHJPCQGNIJNXUQMJPY/bundle.json","state":"https://pith.science/pith/RCTDAV6NLHJPCQGNIJNXUQMJPY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/RCTDAV6NLHJPCQGNIJNXUQMJPY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:RCTDAV6NLHJPCQGNIJNXUQMJPY","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":"f565d112a5b95e29e3f2e0e0971a23ccc04179ba7a0322dcbc79c772cd0f99a8","cross_cats_sorted":["cs.CY","cs.NI"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CR","submitted_at":"2024-09-10T04:15:39Z","title_canon_sha256":"4bc1ebe3d3a28e895b4f5400d2a8f6396d42ef5ffffe4f2dc9a41d649546602d"},"schema_version":"1.0","source":{"id":"2409.06203","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2409.06203","created_at":"2026-07-05T09:05:20Z"},{"alias_kind":"arxiv_version","alias_value":"2409.06203v1","created_at":"2026-07-05T09:05:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2409.06203","created_at":"2026-07-05T09:05:20Z"},{"alias_kind":"pith_short_12","alias_value":"RCTDAV6NLHJP","created_at":"2026-07-05T09:05:20Z"},{"alias_kind":"pith_short_16","alias_value":"RCTDAV6NLHJPCQGN","created_at":"2026-07-05T09:05:20Z"},{"alias_kind":"pith_short_8","alias_value":"RCTDAV6N","created_at":"2026-07-05T09:05:20Z"}],"graph_snapshots":[{"event_id":"sha256:accf9ed8486afc5d6f8c800b04c4feb95278dfc41d25f9f06a8b891df6663320","target":"graph","created_at":"2026-07-05T09:05:20Z","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/2409.06203/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Smart TVs implement a unique tracking approach called Automatic Content Recognition (ACR) to profile viewing activity of their users. ACR is a Shazam-like technology that works by periodically capturing the content displayed on a TV's screen and matching it against a content library to detect what content is being displayed at any given point in time. While prior research has investigated third-party tracking in the smart TV ecosystem, it has not looked into second-party ACR tracking that is directly conducted by the smart TV platform. In this work, we conduct a black-box audit of ACR network ","authors_text":"Alexander D'Souza, Anna Maria Mandalari, Gianluca Anselmi, Patricia Callejo, Yash Vekaria, Zubair Shafiq","cross_cats":["cs.CY","cs.NI"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CR","submitted_at":"2024-09-10T04:15:39Z","title":"Watching TV with the Second-Party: A First Look at Automatic Content Recognition Tracking in Smart TVs"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2409.06203","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":"sha256:706d649e0ed0470932cfcbca0d23e2c18cc0f8a4f9c49a57a51ae8d60f3e3635","target":"record","created_at":"2026-07-05T09:05:20Z","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":"f565d112a5b95e29e3f2e0e0971a23ccc04179ba7a0322dcbc79c772cd0f99a8","cross_cats_sorted":["cs.CY","cs.NI"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CR","submitted_at":"2024-09-10T04:15:39Z","title_canon_sha256":"4bc1ebe3d3a28e895b4f5400d2a8f6396d42ef5ffffe4f2dc9a41d649546602d"},"schema_version":"1.0","source":{"id":"2409.06203","kind":"arxiv","version":1}},"canonical_sha256":"88a63057cd59d2f140cd425b7a41897e35874abf309b3008aed2c6ad79e1efcd","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"88a63057cd59d2f140cd425b7a41897e35874abf309b3008aed2c6ad79e1efcd","first_computed_at":"2026-07-05T09:05:20.783482Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T09:05:20.783482Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"hWra8l/plwMpuwpKvETbZ8rmy23tCSpwYbBzECmWcVmtmn+lGbqmePxKccaARDRkE+6RCL+WTCnWMPfLzpYlAQ==","signature_status":"signed_v1","signed_at":"2026-07-05T09:05:20.783829Z","signed_message":"canonical_sha256_bytes"},"source_id":"2409.06203","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:706d649e0ed0470932cfcbca0d23e2c18cc0f8a4f9c49a57a51ae8d60f3e3635","sha256:accf9ed8486afc5d6f8c800b04c4feb95278dfc41d25f9f06a8b891df6663320"],"state_sha256":"387ef184f1e9507c4ad88635cb1e574a83475bd45a6028ec043619d1164086bb"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"x2Ly7IwvExVrHI0/hRhwEDAawvmx8OWuAhzQGo0BFxad5SUDLYY1RUQ703hZyr2pAPj8LPkRn6hsEGCu4EQtCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-06T09:18:23.450373Z","bundle_sha256":"928b83a7398445a3ee819d9592d73682fed9443a4d40924901beccf14de292dc"}}