Fortuitously, in 2012 the developer Pieter Wuille created the BIP32 specification at The bottom on the hierarchical deterministic wallets. Jointly with it, Pieter created a mathematical function to produce a learn vital from which to derive all other keys inside a deterministic way. An easy backup program for bitcoin in https://socialmediainuk.com/story20634229/the-basic-principles-of-bip39-passphrase-generator