Key Points: South Korean prosecutors summoned Kang Jonghyun, also known as Bithumb’s valid owner, to question him on suspicion that he and Kang Ji-yeon manipulated Bithumb’s stock price and embezzled the money. Kang Jonghyun, the anonymous chairman of Bithumb, is believed to be Vidente’s 34% stake. Vidente is still in operation.