Bip39 library https://bip39marco.mystrikingly.com/ Checksum creation: A checksum is created from this entropy applying SHA-256 hashing, which assists verify the mnemonic's integrity afterwards. It can be basic — if you don't stress about copyright inheritance, no person else will — not your computer software or components wallet sellers, not your exchanges, https://natural-bookmark.com/story20161142/bip39-possible-combinations-5-tips-about-bip39-checksum-you-can-use-today-https-cutt-ly-uryc5rw7