- conflicts or gaps
- [[{"field": "yc_batch", "issue": "YC and YC OSS list Summer 2013 (S13), but TechCrunch and a YC blog repost call it Y Combinator's Winter 2013 class.", "source_urls": ["https://www.ycombinator.com/companies/butter-systems", "https://techcrunch.com/2013/07/30/sergey-brins-younger-brother-co-founds-a-startup-of-his-own/", "https://www.ycombinator.com/blog/butter-systems-yc-s13-launches-making-restaurant-experiences-better-with-tablet-menus-now-live-at-bumble-in-los-altos"]}, {"field": "employees", "issue": "YC lists team_size 2; YCDB lists 5 employees.", "source_urls": ["https://www.ycombinator.com/companies/butter-systems", "https://www.ycdb.co/company/butter-systems"]}, {"field": "headquarters", "issue": "YC lists San Francisco; secondary databases list Los Altos or Palo Alto addresses.", "source_urls": ["https://www.ycombinator.com/companies/butter-systems", "https://www.cbinsights.com/company/butter-systems", "https://www.gaebler.com/Funded-Company-967C7AD6-84F8-42BD-B098-5A02003E2777-Butter-Systems"]}, {"field": "funding.total_raised_usd", "issue": "No primary-source round amounts found. YCDB reports $0.1m; CB Insights reports $70K total; Gaebler and indexed Tracxn pages report undisclosed/unknown amounts.", "source_urls": ["https://www.ycdb.co/company/butter-systems", "https://www.cbinsights.com/company/butter-systems", "https://www.gaebler.com/Funded-Company-967C7AD6-84F8-42BD-B098-5A02003E2777-Butter-Systems", "https://tracxn.com/d/companies/buttersystems/__YsM_9FdIGg4NDxgfaO82UXiC7c7GpIZr-C-HOCKvPDc/funding-and-investors"]}, {"field": "funding.investors", "issue": "Gaebler/Tracxn identify Y Combinator, Fenox Venture Capital, and WeFunder; CB Insights additionally lists Google Ventures and Pegasus Tech Ventures and cites AngelList backers including Sergey Brin without a verified primary announcement for Butter Systems.", "source_urls": ["https://www.gaebler.com/Funded-Company-967C7AD6-84F8-42BD-B098-5A02003E2777-Butter-Systems", "https://tracxn.com/d/companies/buttersystems/__YsM_9FdIGg4NDxgfaO82UXiC7c7GpIZr-C-HOCKvPDc/funding-and-investors", "https://www.cbinsights.com/company/butter-systems", "https://techcrunch.com/2013/07/30/sergey-brins-younger-brother-co-founds-a-startup-of-his-own/"]}, {"field": "products.mobile_payment", "issue": "YC product description mentions mobile payment, but TechCrunch July 2013 launch coverage says there was no in-app payment at that time.", "source_urls": ["https://www.ycombinator.com/companies/butter-systems", "https://techcrunch.com/2013/07/30/sergey-brins-younger-brother-co-founds-a-startup-of-his-own/"]}, {"field": "exit_status.date", "issue": "Multiple sources say inactive/dead/closed, but no authoritative shutdown or out-of-business date was found.", "source_urls": ["https://www.ycombinator.com/companies/butter-systems", "https://www.ycdb.co/company/butter-systems", "https://www.cbinsights.com/company/butter-systems"]}, {"field": "name_collision", "issue": "Multiple unrelated companies use the name Butter (e.g., Butter Payments, food-wholesale Butter, corporate-search Butter); care is required not to merge their funding or product histories with Butter Systems.", "source_urls": ["https://www.finsmes.com/2023/01/butter-payments-raises-21-5m-in-series-a-funding%EF%BF%BC.html", "https://www.finsmes.com/2022/11/butter-raises-9m-in-series-a-funding.html", "https://www.finsmes.com/2016/07/butter-raises-3m-in-seed-funding.html"]}]]
- source urls
- ["https://foodtechconnect.com/2013/07/31/sergey-brins-brother-rethinks-digital-restaurant-menus-with-butter/", "https://techcrunch.com/2013/07/30/sergey-brins-younger-brother-co-founds-a-startup-of-his-own/", "https://tracxn.com/d/companies/buttersystems/__YsM_9FdIGg4NDxgfaO82UXiC7c7GpIZr-C-HOCKvPDc/funding-and-investors", "https://www.cbinsights.com/company/butter-systems", "https://www.finsmes.com/2016/07/butter-raises-3m-in-seed-funding.html", "https://www.finsmes.com/2022/11/butter-raises-9m-in-series-a-funding.html", "https://www.finsmes.com/2023/01/butter-payments-raises-21-5m-in-series-a-funding%EF%BF%BC.html", "https://www.gaebler.com/Funded-Company-967C7AD6-84F8-42BD-B098-5A02003E2777-Butter-Systems", "https://www.gaebler.com/VC-Funding-3FA34DA9-ECB3-43F2-A1C4-73033B2FDD8E-Butter-Systems-10-15-2013", "https://www.ycdb.co/company/butter-systems", "https://www.ycombinator.com/blog/butter-systems-yc-s13-launches-making-restaurant-experiences-better-with-tablet-menus-now-live-at-bumble-in-los-altos", "https://www.ycombinator.com/companies/butter-systems", "https://yc-oss.github.io/api/batches/summer-2013/butter-systems.json"]