Amir Bruno Elmaani, the 31-year-old founder of the now-defunct cryptocurrency project Oyster Protocol, has been sentenced to a maximum of four years in prison for tax evasion. On October 31, the U.S. Attorney's Office stated that Elmaani (also known as "Bruno Block") was sentenced to jail after pleading guilty on April 6. He admitted to secretly minting and selling Pearl tokens while failing to pay income tax. Elmaani admitted to causing over $5.5 million in tax losses.