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1) What is an NFT?NFT stands for non-fungible token, which is a cryptographic token on a blockchain with unique identification codes that distinguish it from other tokens. NFTs are unique and not interchangeable, which means no two NFTs are the same. NFTs can be a unique artwork, GIF, Images, videos, Audio album. in-game items, collectibles etc.
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Nature, Published online: 25 February 2026; doi:10.1038/d41586-026-00554-4
优势：时间复杂度O(n+k)，k为数据范围