Bip39 docs https://squareblogs.net/edelinepge/using-python-to-produce-a-bip39-mnemonic-a-developers-point-of-view It's very important the mnemonic sentences are generated from randomly picked numbers! These figures could be generated in many different different ways, which are explained in other articles or blog posts in this article, like "What exactly is an RNG" and Seed Phrase Tech... https://thesocialroi.com/story10087385/bip39-algorithm-bip39-converter-an-overview-https-linktr-ee-bip39