Bip39 Checksum. Entropy values has to be sourced from a powerful source of randomness. This means flipping a fair coin, rolling a good dice, sounds measurements etc. Do NOT use phrases from guides, lyrics from tracks, your birthday or steet deal with, keyboard mashing, or everything you think that is https://directoryfrenzy.com/listings12982526/bip39-vs-slip39-https-linktr-ee-bip39-5-simple-techniques-for-bip39-mnemonic