Bip39 github https://www.anobii.com/en/01000289012ff9b293/profile/activity This is certainly why it is best to come up with a backup of your seed phrase applying metallic copyright wallet like Coinplate, which might be 100% stainless-steel and BIP39 compatible. This additional complexity enhances the chance of misplacing the passphrase, and therefore dropping your copyright. BC https://bookmarkunit.com/story20467214/bip39-checksum-calculator-bip39-github-an-overview-https-x-com-tundra838554