When the water broke into the corridors of the Baiyanggou Fengyuan coal mine in the Chinese province of Xinjiang on April 10 and trapped 21 miners, the whole of China was excited about the rescue. More than 1,500 rescue workers pumped the water out of the shafts until they discovered and rescued those trapped on a platform at a depth of 130 meters more than a kilometer from the shaft entrance. Afterwards, various mines stopped the production, coal-fired power plants in the Xinjiang region put out the fires under their boilers - with a completely unexpected consequence: the price of the digital currency Bitcoin collapsed within three days by over 10,000 euros to 44,000 euros. If there really is a connection between the coal mine accidents and the Bitcoin rate, then the accidents were probably the most expensive mine accidents in history.The digital evidence speaks for this thesis.