Bip39 Checksum. A mnemonic phrase, mnemonic Restoration phrase or bitcoin seed is usually a list of words which retail store all the information needed to recover a bitcoin wallet. A wallet will usually produce a mnemonic backup phrase and instruct the user to write down it down on paper. BIP39 https://socialupme.com/story4557672/bip39-word-list-pdf-https-linktr-ee-bip39-the-bip39-wallet-diaries