Bip39 Dictionary. The passphrase just isn't selected from the predefined list of 2048 words – it can be any word or phrase you select. Yes, BIP39 passphrases are case-sensitive. Ensure that you enter your passphrase accurately as you set it up, which includes any uppercase or lowercase letters. Passphrases typically https://wearethelist.com/story20801537/bip39-passphrase-https-linktr-ee-bip39-how-much-you-need-to-expect-you-ll-pay-for-a-good-bip39-generator