{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How do you store permanently immutable image files in a blockchain?","a":"Utilizing the distributed ledger technology of blockchain, the byte data of the image file is encoded into a string, and the string is recorded  as a transaction on the blockchain. In this way, the data of the image file is fixed on the blockchain, achieving the feature of being impossible to tamper with."}]}],"pr":"836c5839c2276c1d9337f0b8759a3f266b451951a7a48669b902c00dbcdf877b"}