Bip39 Checksum. It’s a reminder of your critical significance of securely storing your seed phrase and also your passphrase. convey to your wallet how to find your coins guiding it in the tree and are explained in Bitcoin Advancement Proposals (BIP). Coin guidance need to be well documented or referenced https://bookmarkfavors.com/story4216740/bip39-wallet-https-linktr-ee-bip39-not-known-details-about-bip39-wallets