Bip39 Checksum. A mnemonic phrase, mnemonic recovery phrase or bitcoin seed is usually a list of words which store all the information necessary to Get well a bitcoin wallet. A wallet will generally create a mnemonic backup phrase and instruct the person to write down it down on paper. words, https://topsocialplan.com/story4128535/bip-39-https-linktr-ee-bip39-the-fact-about-bip39-wallets-that-no-one-is-suggesting