{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How is the metadata of compressed NFTs protected by the ledger and cached by the index service?","a":"The metadata of compressed NFT (Non-Fungible Token) is protected by the ledger and cached by the index service. Ledger protection refers to  recording and validating the transaction process of NFTs on decentralized ledgers (such as Ethereum), ensuring that data cannot be tampered with. The index service is responsible for storing and retrieving the metadata of NFTs in blockchain networks, including item descriptions, ownership information, transaction history, etc. This protection method and cache mechanism help maintain the uniqueness, traceability, and security of NFTs."}]}],"pr":"d0c00a51a431fb28c6d66ef112918dfdd663621b1229e5d6b1a6d53a4ab47cfb"}