Random Seed Phrase Generator But what is it? A seed phrase can be a mnemonic code consisting of 12-24 words utilized to build or Get better your copyright wallet. You might have heard it often called a backup phrase, Restoration phrase, or mnemonic sentence. Use personal keys at brainwallet.org, but https://ontopicdirectory.com/listings13017899/bip39-meaning-the-ultimate-guide-to-bip39