Bip39 split mnemonic https://www.empowher.com/user/4550298 It really is crucial the mnemonic sentences are generated from randomly picked quantities! These quantities may be generated in a number of other ways, which happen to be described in other posts in this article, like "What on earth is an RNG" and Seed Phrase Generation. https://infopagex.com/story5619133/bip39-javascript-helping-the-others-realize-the-advantages-of-bip39-recovery-tool-https-t-me-bip39-chat