Bitcoin miners just found out their power plants are worth more than their mining rigs. Riot Platforms signed a 20-year lease for 191 megawatts of capacity at its Texas site. Value: $9.1 billion. With options, it pushes toward $16.1 billion. The stock jumped 25% after hours on the news. The likely customer, widely reported but not officially confirmed: Anthropic, the company behind Claude. Here's why this is happening everywhere at once. Bitcoin mining margins run 25 to 30%. Hosting AI compute on the same site runs 80 to 90%. Same power. Same land. Same cooling systems. Completely different business. HIVE Digital just did the same thing, smaller scale. A $350 million, five year GPU cloud deal. Over 2,000 Nvidia Blackwell Ultra chips. A hydro-powered site in British Columbia. $70 million in new annual recurring revenue, overnight. The real story isn't miners chasing a trend. It's what AI companies actually can't buy: energised land, grid connections, permits, power at scale. Building that from scratch takes years. Miners already built it. For a different reason entirely. Turns out it's exactly what the AI industry has been starving for. The machines that mined Bitcoin are becoming a footnote. The power underneath them just became the asset.