The number of archive nodes running the Ethereum blockchain has now grown to more than 4TB, almost doubling in a year. This value indicates the total amount of data that the user needs to download when running the archive node. These archive nodes store a complete snapshot of the Ethereum blockchain, including all transaction records that have occurred, which is different from a typical full node, which only records the ledger of verified transactions. Most Ethereum clients choose to store only necessary blockchain data. The problem of Ethereum's state inflation has yet to be resolved.