On January 6th, according to The Block report, due to protests in Kazakhstan caused by fuel costs, Kazakhtelecom, the largest telecommunications provider in Kazakhstan, shut down the country's Internet, triggering a drop in the hash rate of many Bitcoin mining pools.
Compared with the hashrate of the mining pool half a day ago, the most affected are 1THash (down 82%), OKExPool (down 46.3%) and KuCoinPool (down 22.7%), including major mines including Yuchi, Antpool and ViaBTC. The computing power of the pool also dropped by 12.8%, 11.6%, and 19.2%, respectively. According to estimates by the Cambridge Alternative Finance Center last fall, Kazakhstan has 18% of the world's Bitcoin computing power.