Bitcoin Blender, the cryptocurrency mixing service, has shut down. The reason remains unclear.

Bitcoin Blender, a Tor hidden service for erasing Bitcoin transaction history, has ceased to exist. The company, which promised to make your transactions 100% anonymous and completely remove any connection you have with the coins you buy or sell, has not provided an explanation.

According to a report by BleepingComputer, the service published a short message. It read, “Bitcoin Blender is shutting down. Please Withdraw.” Subsequently, users spread the message on the BitcoinTalk forum. In spite of the abrupt shutdown, the service has apparently enabled the retrieval of funds. However, some users have failed to do that, as the time window was too short.

One of such users published a message on the BitcoinTalk forum, “I recently came to know about the shutting down process of Bitblender, I had many coins saved onto it. Unfortunately, missed the withdrawal warning as I was away for the past few weeks. I am trying to access http://bitblendervrfkzr.onion/ for last 2-3 hours but I cannot succeed.”