Bitcoin Tops $66K, Resuming Uptrend as Real Bond Yields Slide

On-chain data is also showing bullish signs for bitcoin over the medium term, said Eddie Wang, senior analyst at OKLink research, the on-chain data research arm of crypto exchange OKEx. The network's hash rate, or computing power, has increased steadily since July, the difficulty of mining, a metric that describes how difficult it is for miners to find new blocks of bitcoins and earn rewards, has also increased eightfold and miners have amassed on BTC. 3,000 in their wallets since September, Wang said.