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A SideProjectors showcase entry from December 2014 describes the same product, the xylophonebook.com domain no longer resolves, and the App Store ID once tied to the app returns not found, which says nothing certain about the team.","unknown_reason":"The domain no longer resolves, the App Store ID returns not found, and the maker traced through a search snippet left no statement about the app; no coverage after 2014 was found."},"citations":[{"url":"https://www.sideprojectors.com/project/1469/xylo","title":"sideprojectors.com","kind":"other","retrieved_at":"2026-09-28T00:00:00Z","capture_attempt_digest":"sha256:1017fa325dc5b05996454c3f6a737a00d0aabdbf4bd9b89859be745411a3e33d"},{"url":"http://www.xylophonebook.com/","title":"xylophonebook.com","kind":"other","retrieved_at":"2026-09-28T00:00:00Z"},{"url":"https://apps.apple.com/us/app/id921400447","title":"apps.apple.com","kind":"app_store","retrieved_at":"2026-09-28T00:00:00Z"},{"url":"https://www.148apps.com/app/921400447/","title":"148apps.com","kind":"other","retrieved_at":"2026-09-28T00:00:00Z","capture_attempt_digest":"sha256:650e9e4d2528a745e9c7f8e95254c6c98d79b0eb723e7d5d300f45466bfb1483"}],"corrections":[],"revision_digest":"sha256:315265e2a73b5d8b0d8f5eecb7c8ceb989fa72338c32f29cdf2ed841aa10a0a5"},"basis":null,"events":[{"record_contract":"stompstart.event/v1","event_id":"evt_e9f29a765ca46d8ab4086be02d","startup_id":"stp_39a7c06b0d6d592775011fc7c6","kind":"other","subject":"product","title":"On record","summary":"SideProjectors shows a Xylo 'social phonebook' showcase entry dated 23 December 2014.","occurred_on":{"precision":"day","value":"2014-12-23"},"date_basis":"announced","citations":[{"url":"https://www.sideprojectors.com/project/1469/xylo","title":"sideprojectors.com","kind":"other","retrieved_at":"2026-09-28T00:00:00Z","capture_attempt_digest":"sha256:1017fa325dc5b05996454c3f6a737a00d0aabdbf4bd9b89859be745411a3e33d"}],"status":{"state":"active"},"corrections":[],"revision_digest":"sha256:fbad0388f54f7d410added253a23cf7d28757b8f31daa706fda4ee14665e344f"},{"record_contract":"stompstart.event/v1","event_id":"evt_44fe882caf54926a6da55d2719","startup_id":"stp_39a7c06b0d6d592775011fc7c6","kind":"other","subject":"product","title":"On record","summary":"Search snippets of the 148Apps page for 'Xylo - Social Phonebook' give a release date of 5 October 2014; the page itself now redirects to the site's homepage.","occurred_on":{"precision":"day","value":"2014-10-05"},"date_basis":"announced","citations":[{"url":"https://www.148apps.com/app/921400447/","title":"148apps.com","kind":"other","retrieved_at":"2026-09-28T00:00:00Z","capture_attempt_digest":"sha256:650e9e4d2528a745e9c7f8e95254c6c98d79b0eb723e7d5d300f45466bfb1483"}],"status":{"state":"active"},"corrections":[],"revision_digest":"sha256:55ba81cf6ae4d5454fe5ff5a7f95dfeb97b8dd038c3c7971a2e3bd2334923385"}],"nextEventCursor":null,"siteChecks":[],"listings":[{"listing":{"record_contract":"stompstart.listing/v1","listing_id":"lst_4c8e42ab3e5b11c3b6bc49f337","startup_id":"stp_39a7c06b0d6d592775011fc7c6","original_url":"http://stompstart.com:80/xylo","legacy_paths":["/xylo"],"listed_on":{"precision":"day","value":"2014-12-23"},"editorial_summary":"The 2014 listing described Xylo as a social phonebook: search for someone by name, pick which details to share, send a request, then add the new contact to your phone's address book. 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