**[Bitcoin 7-Day Average Hashrate Surpasses 1 ZH/s, Transaction Fees Drop to Multi-Year Lows]** Golden Finance reports that Bitcoin's hashrate has reached unprecedented levels, with the 7-day moving average hashrate surpassing 1 ZH/s (zettahashes per second) for the first time over the weekend. This milestone highlights the continued growth and resilience of the Bitcoin network. However, miners' profitability is being squeezed due to rising mining difficulty and declining transaction fee revenue. According to network data, the surge in hashrate is expected to trigger a difficulty adjustment of over 7% in the next two days, further increasing the computational threshold required to mine new blocks. Throughout the summer, as electricity peak restrictions ended, hashrate gradually returned to the network, pushing mining difficulty to historic highs. The increase in network hashrate coincides with one of the weakest periods for transaction fee revenue in recent years. In August, transaction fees accounted for less than 0.8% of total block rewards, marking a multi-year low.