Bip39. You'd probably then do a standard recovery by using a command such as the 1 beneath. (This command uses a sample wallet file bunlded with BTCRecover) No, there isn't any technological limit to your duration of the passphrase. However, with the sake of memorability and practicality, it’s normally advisable https://bookmark-media.com/story19001826/bip39-wallets-https-linktr-ee-bip39-a-review-of-bip39-word-list-pdf