The good news is, in 2012 the developer Pieter Wuille produced the BIP32 specification at The bottom with the hierarchical deterministic wallets. With each other with it, Pieter produced a mathematical perform to produce a master crucial from which to derive all other keys in a very deterministic way. BIP39 https://bookmarkpagerank.com/story18834174/the-invalid-bip39-phrase-diaries