Bip39 seed phrase https://500px.com/p/alexzhiglatyxrnxb It is crucial the mnemonic sentences are produced from randomly chosen figures! These figures is usually created in many different various ways, which are explained in other article content in this article, like "Precisely what is an RNG" and Seed Phrase Era. It is very simple https://bookmarkize.com/story20837583/bip39-entropy-to-mnemonic-bip39-generator-secrets-https-dzen-ru-bip39-phrase-com