HOW BIP39 CAN SAVE YOU TIME, STRESS, AND MONEY.

 explain to your wallet how to find your cash guiding it in the tree and are explained in Bitcoin Enhancement Proposals (BIP).Case (a) is beneficial When you have a mnemonic sentence which has an invalid checksum and you want to use it that has a wallet that not just checks the CS, but will also refuses to make use of your entropy Unless of cour