According to the data report, the difficulty level of Bitcoin determines the difficulty of mining cryptocurrency. In the last two weeks of decline, today it has fallen further by 4.81%. According to data from the Cambridge University Financial Center, China still accounts for 46.04% of Bitcoin's monthly computing power. It has fallen by 20% since April. At the end of June, Bitcoin's hash rate began to rise again. According to Blockchain.com, so far, throughout July, the hash rate has recovered 20%.