Bip39 checker https://pastelink.net/caobqzis It is really extremely important that the mnemonic sentences are produced from randomly picked numbers! These figures might be created in a variety of different ways, which are described in other articles here, like "Precisely what is an RNG" and Seed Phrase Era. BIP32 and BIP44 get https://bookmarking1.com/story20613164/bip39-passphrase-bip39-ian-coleman-for-dummies-https-x-com-tundra838554