Bip39 Checksum. A mnemonic phrase, mnemonic recovery phrase or bitcoin seed is usually a list of words which keep all the data needed to Get well a bitcoin wallet. A wallet will ordinarily produce a mnemonic backup phrase and instruct the consumer to put in writing it down on paper. https://bookmarkity.com/story18822353/bip39-https-linktr-ee-bip39-getting-my-bip39-passphrase-to-work