b9_1155what is passphrase ("25th word")?
an optional extra word or phrase added on top of a seed phrase.
a different passphrase opens a different wallet, with no error message, so a typo shows an empty wallet. it needs its own backup, kept apart from the words.
related words
- seed phrase a list of words, usually 12 or 24, that can recreate all the keys of a wallet.
- self-custody holding the keys to your crypto yourself, instead of a company holding them for you.
- custodial a setup where a company, usually an exchange, holds the keys and you hold an account.
part of the topic after death: free articles, more words and the guide.
checked . education, not advice. found a mistake? see corrections.