QZ.COM - Jan 17 - While American dating sites have taken a laissez faire approach to lying, Asian dating sites have implemented serious measures to keep users honest. Jiayuan.com lets users provide ID cards to back up their claims. KoreanCupid.com requires users to submit a copy of a national registration form, diplomas, and proof of employment, which the site uses to verify age, marital history, parents’ marital status, education, and type of job.