{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How to protect and back up the metadata of NFTs in the blockchain?","a":"In blockchain, the primary method of protecting and backing up the metadata of NFTs (Non-Fungible Tokens) is to store the metadata in decentralized storage networks such as Filecoin. Filecoin is a decentralized storage network that distributes data across nodes worldwide, achieving secure, reliable, and long-lasting storage. By storing the metadata of NFTs on Filecoin, not only can the authenticity and reliability of the data be  ensured, but also true and physical ownership of the data can be provided for the owners of NFTs.↵↵Additionally, the metadata of NFTs can also be combined with other blockchain technologies, such as smart contracts."}]}],"pr":"5e02e8c46137dbe3e1266b57b0b40138753754e2d2e9d3557a74d743666f612f"}