来源:[1] 比特币难度调整估算器 - Newhedge (https://newhedge.io/bitcoin/difficulty-estima ...)[2] BTCUSD - BTC挖矿难度预计12月上升,因为... - ADVFN (https://mx.advfn.com/bolsa-de-valores/COIN/BT ...)[3] 比特币难度再创新高——这意味着什么... (https://decrypt.co/340459/bitcoin-difficulty- ...)