Bip39 Lib The password is usually prepared down together with the mnemonic phrase, but It might be more practical to keep in mind it, in order that an extremely two-issue recovery program may very well be obtained: for unblocking Bitcoins, you'll need “what you may have” plus “what you know”. https://fellowfavorite.com/story20180185/bip39-checksum-failed-a-review-of-seed-phrase-generator