Bip39 checksum calculator https://www.pexels.com/@adele-fanetti-2153528476/ It really is crucial which the mnemonic sentences are generated from randomly chosen numbers! These numbers is often generated in a number of alternative ways, that are described in other articles or blog posts in this article, like "Exactly what is an RNG" and Seed Phrase https://ilovebookmarking.com/story20235114/bip39-last-word-checksum-5-tips-about-bip39-standard-you-can-use-today-https-cutt-ly-uryc5rw7