Bitcoin difficulty jumps 15% to 144.40T, tightening miner margins and shifting on-chain selling dynamics

Bitcoin's mining difficulty has climbed about 15% to roughly 144.40T, marking the largest single upward adjustment since around 2021 and arriving while the BTC price trades in the mid-$60,000s with repeated moves toward $65,000. The higher difficulty has pushed hashprice down from about $33.5 to around $29.7 per PH/s/day, narrowing miner margins and increasing the likelihood that some operators will meet cash needs by selling treasury coins, even as network security and block-time stability improve.