Alexey Pertsev, accused of facilitating money laundering via the now-sanctioned Tornado Cash app, must stay in jail for at least a further 90 days, a judge in the Netherlands ruled Wednesday. Pertsev, 29, was arrested Aug. 10 on the orders of the Dutch authorities, just two days after the U.S. Treasury Department sanctioned the currency mixing service, which it linked to over $1 billion in illicit transactions and to North Korean hackers. The arrest has generated consternation from the Web3 community, which has warned it could have a chilling effect on those developing open-source software, and on those who have...