知乎，让每一次点击都充满意义 —— 欢迎来到知乎，发现问题背后的世界。 With Earlier implementation mobile wallets must convert 4k+ pubkeys with the v19 fork stage Which can easily just take 10-15 seconds if no more. Also, following the v19 Hard Fork, if a masternode checklist is asked for from a block before the v19 Really hard Fork, the https://trevorvggnw.amoblog.com/the-smart-trick-of-digital-euro-that-no-one-is-discussing-61461376