"[We] officially declare — Alexander was never the head or the employee of our service," BTC-E bitcoin exchange said in a statement on bitcointalk.org forum.
According to BTC-E, one of the oldest virtual currency platforms, the FBI staff on Tuesday came to the data center where its server equipment was located and seized all servers. On July 28, the company's domain was confiscated. The company said it would try to restore the service before September, otherwise it starts returning money to its customers in early September.
Bitcoin is one of the most popular cryptocurrencies based on blockchain technology, with data distributed on multiple computers and no central server. Each block of data in a blockchain contains a timestamp, which makes it able to track transactions.