According to the official blog, in order to improve the user experience, Coinbase announced today the number of blocks confirmed by BTC, LTC, ZEC and ETC on the platform. According to the information provided by Coinbase, LTC increased the number of confirmed blocks from 6 blocks to 12 blocks, and the number of block confirmations of BTC, ETC, and ZEC decreased. The number of blocks confirmed by BTC decreased from 6 to 3. Piece. Regarding the explanation of LTC's increase in transaction confirmation time, Coinbase stated that it is mainly to reduce the risk of Litecoin's 51% attack.