Bip39 mnemonic checksum https://files.fm/u/2eemhhak2q#design It is crucial the mnemonic sentences are produced from randomly selected quantities! These figures is usually generated in a variety of alternative ways, which might be described in other article content here, like "What on earth is an RNG" and Seed Phrase Generation. Want to check https://socialwebnotes.com/story4969687/bip39-nedir-the-smart-trick-of-bip39-wallet-that-no-one-is-discussing-https-dzen-ru-bip39-phrase-com