DB = "spider.db"
6) How to validate the authencity of an NFT?When you purchase a stock in NFT, that purchase is recorded on the blockchain—the bitcoin ledger of transactions—and that entry acts as your proof of ownership.
。关于这个话题，服务器推荐提供了深入分析
（一）按照纳税人最近时期销售同类货物、服务、无形资产或者不动产的平均价格确定；
Inside the situation room
Kerry Wan/ZDNET