On the evening of July 25th, Laibite Pool CEO Jiang Zhuoer said in the Babit online live program She Knows that the chain dedicated to decentralized storage such as IPFS may become the data layer of the blockchain, decentralized storage chain. The storage capacity is far beyond the public chain of Bitcoin ETH. Because of the public chain such as Bitcoin ETH, each node must store the same data, that is, if there are 10,000 nodes, the block data will be stored 10,000 copies. The decentralized storage chain such as IPFS, the storage principle is different from the public chain such as BTC. The data in IPFS is not stored once for each node, but is divided by several nodes after the data is split. This storage cost is much lower than the 10,000 copies of the data in the public chain. The cost of low cost is that the data may be lost, but it does not matter to the old data that is ready to be pruned. Therefore, after decentralized storage such as IPFS is mature, not only ETH, but BCH may also use IPFS to store deleted old data.