Bitcoin Mining Difficulty Rises 5.92% to 140.58T

This is the second consecutive upward difficulty adjustment, and the swing from a near-flat cut to a nearly 6% raise suggests hashrate is being added faster than the network's retargeting window anticipated. The practical effect falls on miners' margins: operators with older or less efficient rigs absorb the squeeze first, while lower-cost fleets gain relative share. Whether that hashrate growth reflects new capacity coming online or existing machines being pointed at Bitcoin is the open question, and it will show up in the next adjustment.