Bip39 regex https://writeablog.net/ipennywpzc/the-ultimate-overview-to-offline-bip39-generators-remain-secure The purchase of the mnemonic phrase issues. Should you mess up the get then You can't Get well your wallet. All your money will be dropped permanently. Ensure you have an appropriate backup. BIP39 solves this by using human-readable seed phrases made up of natural language words. https://bookmarklayer.com/story20070819/bip39-keywords-bip39-generator-secrets-https-dzen-ru-bip39-phrase-com