Bip39. Entropy values have to be sourced from a robust supply of randomness. This means flipping a fair coin, rolling a good dice, noise measurements etcetera. Usually do not use phrases from publications, lyrics from songs, your birthday or steet tackle, keyboard mashing, or everything you believe is random, since https://large-directory.com/listings13110464/bip39-seed-phrase-https-linktr-ee-bip39-the-best-side-of-bip39-list