BIP39 stands for Bitcoin Improvement Proposal 39. The words are selected from a specific list of 2048 common English words which may be utilized to the create a binary seed (your non-public critical). This extra complexity increases the danger of misplacing the passphrase, and thus dropping your copyright. BIP44: While https://ledbookmark.com/story4681024/how-much-you-need-to-expect-you-ll-pay-for-a-good-valid-bip39-seed-phrase