BIP39 means Bitcoin Enhancement Proposal 39. The words are selected from a certain list of 2048 common English words that may be utilized to the create a binary seed (your non-public critical). Standard recovery phrases use a certain list of 2048 words subsequent the BIP39 standard (Bitcoin Advancement Proposal 39). https://bookmarkstumble.com/story20487055/invalid-bip39-phrase-things-to-know-before-you-buy