[
 {
  "platform": "Facebook / Messenger",
  "source_key": "fb_dm",
  "events": 479051,
  "first_event": "2003-01-01",
  "last_event": "2026-08-04",
  "consent_tier": "T3",
  "dated_events": 479051,
  "description": "Messenger DMs \u2014 HTML export, identity rebuilt per message"
 },
 {
  "platform": "Gmail mbox (both accounts)",
  "source_key": "gmail",
  "events": 172947,
  "first_event": "2011-12-05",
  "last_event": "2026-08-05",
  "consent_tier": "T4",
  "dated_events": 172774,
  "description": "All mail incl. spam/trash, both accounts; quotes stripped, is_automated tagged"
 },
 {
  "platform": "Instagram",
  "source_key": "ig_dm",
  "events": 154325,
  "first_event": "2013-12-12",
  "last_event": "2026-08-05",
  "consent_tier": "T3",
  "dated_events": 154325,
  "description": "Instagram DMs \u2014 1,740 threads, mojibake repaired"
 },
 {
  "platform": "Spotify",
  "source_key": "spotify",
  "events": 134293,
  "first_event": "2011-09-26",
  "last_event": "2026-07-09",
  "consent_tier": "T2",
  "dated_events": 134293,
  "description": "Extended streaming history \u2014 plays, skips, conn_country location"
 },
 {
  "platform": "Local browsers (device)",
  "source_key": "browser",
  "events": 98754,
  "first_event": "2026-03-24",
  "last_event": "2026-08-07",
  "consent_tier": "T2",
  "dated_events": 98754,
  "description": "Local Chrome/Brave/Firefox/Safari history \u2014 acquisition=device_local"
 },
 {
  "platform": "Google Takeout (work + personal)",
  "source_key": "search",
  "events": 68887,
  "first_event": "2012-01-23",
  "last_event": "2071-03-20",
  "consent_tier": "T2",
  "dated_events": 68887,
  "description": "Google Search, incl. Discover, News, and Ads activity"
 },
 {
  "platform": "Instagram",
  "source_key": "ig_like",
  "events": 16547,
  "first_event": "2013-03-02",
  "last_event": "2026-08-05",
  "consent_tier": "T1",
  "dated_events": 16547,
  "description": "Instagram likes"
 },
 {
  "platform": "Facebook / Messenger",
  "source_key": "fb_inference",
  "events": 14064,
  "first_event": "2013-05-24",
  "last_event": "2026-03-18",
  "consent_tier": "T2",
  "dated_events": 139,
  "description": "Meta's ad-interest inferences about the subject"
 },
 {
  "platform": "Snapchat",
  "source_key": "snap_dm",
  "events": 13479,
  "first_event": "2014-05-05",
  "last_event": "2026-07-23",
  "consent_tier": "T3",
  "dated_events": 13479,
  "description": "Saved chat only \u2014 a floor, not a measure (saved_only flagged)"
 },
 {
  "platform": "Google Takeout (work + personal)",
  "source_key": "maps",
  "events": 13145,
  "first_event": "2012-01-27",
  "last_event": "2026-08-05",
  "consent_tier": "T2",
  "dated_events": 13145,
  "description": "Google Maps activity"
 },
 {
  "platform": "Instagram",
  "source_key": "ig_follow",
  "events": 11787,
  "first_event": "2013-02-27",
  "last_event": "2026-08-04",
  "consent_tier": "T1",
  "dated_events": 11787,
  "description": "Followers and following"
 },
 {
  "platform": "Google Takeout (work + personal)",
  "source_key": "youtube",
  "events": 9723,
  "first_event": "2011-12-05",
  "last_event": "2026-08-05",
  "consent_tier": "T2",
  "dated_events": 9723,
  "description": "YouTube watch + search activity"
 },
 {
  "platform": "Media vision captions",
  "source_key": "photo_caption",
  "events": 7748,
  "first_event": "2015-04-04",
  "last_event": "2022-08-06",
  "consent_tier": "T2",
  "dated_events": 1283,
  "description": "Vision (LLaVA) captions of personal photos"
 },
 {
  "platform": "LinkedIn",
  "source_key": "li_dm",
  "events": 7597,
  "first_event": "2016-12-02",
  "last_event": "2026-07-30",
  "consent_tier": "T3",
  "dated_events": 7597,
  "description": "LinkedIn messages \u2014 only professional-register conversation corpus"
 },
 {
  "platform": "X / Twitter",
  "source_key": "x_dm",
  "events": 6997,
  "first_event": "2019-09-20",
  "last_event": "2026-05-01",
  "consent_tier": "T3",
  "dated_events": 6997,
  "description": "X direct messages (ids resolved via follower/following)"
 },
 {
  "platform": "Facebook / Messenger",
  "source_key": "fb_reaction",
  "events": 5712,
  "first_event": "1970-01-01",
  "last_event": "2025-04-12",
  "consent_tier": "T1",
  "dated_events": 5712,
  "description": "Likes and typed reactions (type from the icon)"
 },
 {
  "platform": "LinkedIn",
  "source_key": "li_reaction",
  "events": 5073,
  "first_event": "2016-12-18",
  "last_event": "2026-08-05",
  "consent_tier": "T1",
  "dated_events": 5073,
  "description": "LinkedIn reactions"
 },
 {
  "platform": "Google Takeout (work + personal)",
  "source_key": "image_search",
  "events": 4948,
  "first_event": "2012-01-23",
  "last_event": "2026-08-04",
  "consent_tier": "T2",
  "dated_events": 4948,
  "description": "Google Image Search"
 },
 {
  "platform": "Facebook / Messenger",
  "source_key": "fb_comment",
  "events": 4609,
  "first_event": "2009-09-03",
  "last_event": "2021-02-14",
  "consent_tier": "T1",
  "dated_events": 4609,
  "description": "Comments on others' posts, incl. in groups"
 },
 {
  "platform": "Google Takeout (work + personal)",
  "source_key": "calendar",
  "events": 4435,
  "first_event": "2013-09-26",
  "last_event": "2027-07-24",
  "consent_tier": "T2",
  "dated_events": 4435,
  "description": "Google Calendar events (ATTENDEE = join key)"
 },
 {
  "platform": "Media vision captions",
  "source_key": "screenshot_caption",
  "events": 4415,
  "first_event": "2015-06-26",
  "last_event": "2021-02-15",
  "consent_tier": "T2",
  "dated_events": 626,
  "description": "Vision captions of screenshots/memes \u2014 attention signal"
 },
 {
  "platform": "X / Twitter",
  "source_key": "x_follow",
  "events": 3670,
  "first_event": "",
  "last_event": "",
  "consent_tier": "T1",
  "dated_events": 0,
  "description": "Follows/followers"
 },
 {
  "platform": "Instagram",
  "source_key": "ig_story_interaction",
  "events": 3331,
  "first_event": "2017-12-05",
  "last_event": "2026-08-03",
  "consent_tier": "T3",
  "dated_events": 3331,
  "description": "Story replies: answered questions, polls, quizzes, story likes"
 },
 {
  "platform": "Instagram",
  "source_key": "ig_story_view",
  "events": 3204,
  "first_event": "2026-07-06",
  "last_event": "2026-08-05",
  "consent_tier": "T2",
  "dated_events": 3204,
  "description": "Stories viewed (rolling window)"
 },
 {
  "platform": "X / Twitter",
  "source_key": "x_like",
  "events": 3046,
  "first_event": "",
  "last_event": "",
  "consent_tier": "T1",
  "dated_events": 0,
  "description": "Likes"
 },
 {
  "platform": "Facebook / Messenger",
  "source_key": "fb_friend",
  "events": 2870,
  "first_event": "2009-08-12",
  "last_event": "2026-04-16",
  "consent_tier": "T2",
  "dated_events": 2870,
  "description": "Friend graph: adds, requests sent/received/rejected, removals"
 },
 {
  "platform": "LinkedIn",
  "source_key": "li_connection",
  "events": 2804,
  "first_event": "2016-01-18",
  "last_event": "2026-07-31",
  "consent_tier": "T1",
  "dated_events": 2804,
  "description": "Connection graph with company and position"
 },
 {
  "platform": "Google Takeout (work + personal)",
  "source_key": "gchat",
  "events": 2775,
  "first_event": "2015-06-09",
  "last_event": "2026-07-12",
  "consent_tier": "T3",
  "dated_events": 2775,
  "description": "Google Chat messages"
 },
 {
  "platform": "Google Takeout (work + personal)",
  "source_key": "contact",
  "events": 2631,
  "first_event": "",
  "last_event": "",
  "consent_tier": "T2",
  "dated_events": 0,
  "description": "Google Contacts (phone\u2192name = join key)"
 },
 {
  "platform": "Instagram",
  "source_key": "ig_collection",
  "events": 2630,
  "first_event": "",
  "last_event": "",
  "consent_tier": "T1",
  "dated_events": 0,
  "description": "Saved posts / collections"
 },
 {
  "platform": "Instagram",
  "source_key": "ig_comment",
  "events": 2483,
  "first_event": "2013-02-28",
  "last_event": "2026-07-29",
  "consent_tier": "T1",
  "dated_events": 2482,
  "description": "Comments on posts and reels"
 },
 {
  "platform": "Snapchat",
  "source_key": "snap_memory",
  "events": 2120,
  "first_event": "2015-04-05",
  "last_event": "2023-02-26",
  "consent_tier": "T4",
  "dated_events": 2120,
  "description": "Memories metadata (dated filenames)"
 },
 {
  "platform": "Venmo",
  "source_key": "venmo",
  "events": 2054,
  "first_event": "2016-04-19",
  "last_event": "2026-07-28",
  "consent_tier": "T2",
  "dated_events": 2050,
  "description": "Transactions: amount/audience/note; identity block deliberately excluded"
 },
 {
  "platform": "Local browsers (device)",
  "source_key": "browser_search",
  "events": 1868,
  "first_event": "2026-03-25",
  "last_event": "2026-08-07",
  "consent_tier": "T2",
  "dated_events": 1868,
  "description": "Search queries parsed out of local browser history"
 },
 {
  "platform": "Amazon",
  "source_key": "amazon",
  "events": 1805,
  "first_event": "2023-04-28",
  "last_event": "2026-08-09",
  "consent_tier": "T2",
  "dated_events": 1805,
  "description": "Order history \u2014 dated physical purchases"
 },
 {
  "platform": "X / Twitter",
  "source_key": "x_post",
  "events": 1782,
  "first_event": "2019-09-24",
  "last_event": "2026-08-04",
  "consent_tier": "T1",
  "dated_events": 1782,
  "description": "Tweets"
 },
 {
  "platform": "Apple / iCloud",
  "source_key": "apple_contact",
  "events": 1660,
  "first_event": "",
  "last_event": "",
  "consent_tier": "T2",
  "dated_events": 0,
  "description": "iCloud Contacts"
 },
 {
  "platform": "Google Takeout (work + personal)",
  "source_key": "shopping",
  "events": 1643,
  "first_event": "2012-01-25",
  "last_event": "2026-08-05",
  "consent_tier": "T2",
  "dated_events": 1643,
  "description": "MERGED KEY \u2014 Google Play/Shopping + DoorDash orders + Uber Eats"
 },
 {
  "platform": "Snapchat",
  "source_key": "snap_friend",
  "events": 1316,
  "first_event": "2012-10-16",
  "last_event": "2025-04-02",
  "consent_tier": "T2",
  "dated_events": 1315,
  "description": "Friends list"
 },
 {
  "platform": "Apple / iCloud",
  "source_key": "apple_calendar",
  "events": 1268,
  "first_event": "2011-11-06",
  "last_event": "2026-05-13",
  "consent_tier": "T2",
  "dated_events": 1268,
  "description": "iCloud Calendars (.ics events)"
 },
 {
  "platform": "LinkedIn",
  "source_key": "li_comment",
  "events": 959,
  "first_event": "2017-01-24",
  "last_event": "2026-08-04",
  "consent_tier": "T1",
  "dated_events": 958,
  "description": "Comments on LinkedIn posts"
 },
 {
  "platform": "Lyft",
  "source_key": "lyft_trip",
  "events": 855,
  "first_event": "2021-03-11",
  "last_event": "2026-08-07",
  "consent_tier": "T2",
  "dated_events": 854,
  "description": "Lyft rides + bike/scooter trips"
 },
 {
  "platform": "Facebook / Messenger",
  "source_key": "fb_offsite",
  "events": 838,
  "first_event": "2024-11-03",
  "last_event": "2026-08-07",
  "consent_tier": "T2",
  "dated_events": 838,
  "description": "Off-Facebook activity (third-party site tracking)"
 },
 {
  "platform": "Google Takeout (work + personal)",
  "source_key": "video_search",
  "events": 775,
  "first_event": "2012-02-06",
  "last_event": "2022-01-19",
  "consent_tier": "T2",
  "dated_events": 775,
  "description": "Google Video Search"
 },
 {
  "platform": "Uber",
  "source_key": "uber_trip",
  "events": 688,
  "first_event": "2019-01-01",
  "last_event": "2026-06-24",
  "consent_tier": "T2",
  "dated_events": 688,
  "description": "Uber rides \u2014 pickup/dropoff coords; cancelled trips kept"
 },
 {
  "platform": "LinkedIn",
  "source_key": "li_invitation",
  "events": 665,
  "first_event": "2026-01-11",
  "last_event": "2026-08-05",
  "consent_tier": "T3",
  "dated_events": 665,
  "description": "Connection invitations, sent and received"
 },
 {
  "platform": "Facebook / Messenger",
  "source_key": "fb_event",
  "events": 664,
  "first_event": "2010-10-31",
  "last_event": "2022-06-25",
  "consent_tier": "T2",
  "dated_events": 584,
  "description": "Events hosted, invitations received, RSVP responses"
 },
 {
  "platform": "Google Takeout (work + personal)",
  "source_key": "flights",
  "events": 630,
  "first_event": "2013-04-06",
  "last_event": "2026-08-05",
  "consent_tier": "T2",
  "dated_events": 630,
  "description": "Google Flights activity"
 },
 {
  "platform": "Facebook / Messenger",
  "source_key": "fb_post",
  "events": 588,
  "first_event": "2009-09-03",
  "last_event": "2024-10-02",
  "consent_tier": "T1",
  "dated_events": 588,
  "description": "Own posts, check-ins, and album captions"
 },
 {
  "platform": "Apple / iCloud",
  "source_key": "apple_note",
  "events": 583,
  "first_event": "2016-09-05",
  "last_event": "2026-08-03",
  "consent_tier": "T4",
  "dated_events": 530,
  "description": "iCloud Notes \u2014 the only no-audience writing in the corpus"
 },
 {
  "platform": "Google Takeout (work + personal)",
  "source_key": "gemini",
  "events": 563,
  "first_event": "2025-03-23",
  "last_event": "2026-05-12",
  "consent_tier": "T2",
  "dated_events": 563,
  "description": "Gemini Apps conversations"
 },
 {
  "platform": "Google Takeout (work + personal)",
  "source_key": "hotels",
  "events": 406,
  "first_event": "2015-09-25",
  "last_event": "2026-08-04",
  "consent_tier": "T2",
  "dated_events": 406,
  "description": "Google Hotels activity"
 },
 {
  "platform": "Facebook / Messenger",
  "source_key": "fb_search",
  "events": 278,
  "first_event": "2025-09-02",
  "last_event": "2026-08-06",
  "consent_tier": "T2",
  "dated_events": 278,
  "description": "On-platform search history"
 },
 {
  "platform": "Facebook / Messenger",
  "source_key": "fb_group",
  "events": 235,
  "first_event": "2010-05-06",
  "last_event": "2024-12-28",
  "consent_tier": "T1",
  "dated_events": 235,
  "description": "Group posts and membership activity"
 },
 {
  "platform": "LinkedIn",
  "source_key": "li_post",
  "events": 144,
  "first_event": "2017-09-09",
  "last_event": "2026-08-05",
  "consent_tier": "T1",
  "dated_events": 144,
  "description": "Own posts and shares"
 },
 {
  "platform": "Apple / iCloud",
  "source_key": "apple_bookmark",
  "events": 117,
  "first_event": "",
  "last_event": "",
  "consent_tier": "T2",
  "dated_events": 0,
  "description": "Safari bookmarks"
 },
 {
  "platform": "Amazon",
  "source_key": "amazon_digital",
  "events": 77,
  "first_event": "2023-04-28",
  "last_event": "2026-07-26",
  "consent_tier": "T2",
  "dated_events": 77,
  "description": "Digital content orders (apps, ebooks, video)"
 },
 {
  "platform": "Instagram",
  "source_key": "ig_post",
  "events": 40,
  "first_event": "2014-02-06",
  "last_event": "2024-10-02",
  "consent_tier": "T1",
  "dated_events": 40,
  "description": "Own posts"
 },
 {
  "platform": "LinkedIn",
  "source_key": "li_profile",
  "events": 29,
  "first_event": "2018-01-01",
  "last_event": "2026-01-01",
  "consent_tier": "T1",
  "dated_events": 9,
  "description": "Profile facts: positions, education, skills"
 },
 {
  "platform": "Apple / iCloud",
  "source_key": "apple_care",
  "events": 18,
  "first_event": "",
  "last_event": "",
  "consent_tier": "T2",
  "dated_events": 0,
  "description": "AppleCare cases"
 },
 {
  "platform": "Apple / iCloud",
  "source_key": "apple_device",
  "events": 18,
  "first_event": "",
  "last_event": "",
  "consent_tier": "T2",
  "dated_events": 0,
  "description": "Device inventory"
 },
 {
  "platform": "Apple / iCloud",
  "source_key": "apple_purchase",
  "events": 16,
  "first_event": "",
  "last_event": "",
  "consent_tier": "T2",
  "dated_events": 0,
  "description": "Apple.com / App Store purchases"
 },
 {
  "platform": "Amazon",
  "source_key": "amazon_cart",
  "events": 10,
  "first_event": "2024-12-29",
  "last_event": "2026-08-07",
  "consent_tier": "T2",
  "dated_events": 10,
  "description": "Cart adds that were never bought"
 },
 {
  "platform": "Apple / iCloud",
  "source_key": "apple_push",
  "events": 5,
  "first_event": "",
  "last_event": "",
  "consent_tier": "T2",
  "dated_events": 0,
  "description": "App install & push records"
 },
 {
  "platform": "Snapchat",
  "source_key": "snap_snap",
  "events": 2,
  "first_event": "2021-08-18",
  "last_event": "2021-08-19",
  "consent_tier": "T2",
  "dated_events": 2,
  "description": "Snap history \u2014 2 rows; snaps delete by design"
 },
 {
  "platform": "Apple / iCloud",
  "source_key": "apple_wallet",
  "events": 1,
  "first_event": "",
  "last_event": "",
  "consent_tier": "T2",
  "dated_events": 0,
  "description": "Wallet activity"
 }
]