Bip39 Numbers. From this point forward the seed could be published on paper or spoken in excess of phone and this opened up new, Bodily ways of backing up the seed (various paper copies in numerous destinations, resilient copies on metallic plates with further defense from fireplace/flood and so forth.). https://socialupme.com/story4111864/bip39-vs-bip32-about-12-word-seed-phrase-generator-with-balance