Bip39 Mnemonic. You would then do a primary recovery which has a command similar to the a single down below. (This command employs a sample wallet file bunlded with BTCRecover) What constitutes a "fantastic wallet" is one that has obvious, straightforward to access documentation on supported BIP specifications, derivation paths, https://mylittlebookmark.com/story4235936/bip39-list-https-linktr-ee-bip39-the-fact-about-bip39-wallets-that-no-one-is-suggesting