Northern Data has sold its bitcoin mining arm, Peak Mining, to firms linked to Tether, in a deal worth up to $200 million. The sale is part of a larger shift in the industry, with some miners pivoting to artificial intelligence. A merger agreement has also been signed between Rumble and Northern Data, with Tether committing $150 million to support an AI push, although the exact nature and outcome of these deals and investments are not entirely clear.