Suspected bitcoin money launderer Alexander Vinnik was seen leaving Athens Supreme Court on Wednesday, following an appeals hearing on US extradition. Vinnik's lawyer Alexandros Lykourezos stated that the court has agreed to postpone the hearing in order to bring to court «two substantial witnesses» who «will be able to testify and help the court to understand the essential issues that this case... Еще raises». A Thessaloniki court had previously approved an extradition request made by the US on October 4, a decision which was appealed. The extradition hearing to the US has been postponed for December 6. Vinnik, a 38-year-old Russian national, is wanted in the US for alleged cybercrimes equating to $4 billion (€3.4bn), including money laundering. He was arrested on July 25 in the Greek resort in Halkidiki on a US warrant. The suspected money launderer has previously expressed a desire to be extradited to his native Russia, where he will be tried on lesser fraud charges.