The second cipher, known as Z340, resembled the first: a grid with letters, backward letters, shapes, and other symbols. No one could crack it. Many have tried it over the past 51 years.

Cipher Mining reports strong Q4 results, growing Bitcoin mining revenue. Despite a yearly loss, hedge fund balances rise.

Cipher also operates an Odessa data center ... “We have a mix of power in the portfolio, but most of it comes from the Texas grid,” Iwaschuk said. “We have a combination of fixed-price ...