If a HD wallet only gives me the 12 word mnemonic, how can one get the master public key?

  • What wallet software are you using? You've tagged this bitcoin-core but AFAIK it doesn't use mnemonics. Some wallet software will show you the master public key, though it might be buried in a menu somewhere. You can also recover it from the mnemonic with third-party tools like coinomi, though this requires you to trust that the software is not malicious (it could steal your coins if it were). Jan 16 '18 at 15:29
  • when you have your 12 words, and you are tech-savvy (the logic behind BIP32 or 39), then you can also try to download this website locally, and go from there: iancoleman.io/bip39/#english - but why would you want your master public key? Not the master priv key? Jan 16 '18 at 17:07
  • @pebwindkraft if you have the master public key, you can give it to a business for example to send payments spreaded out to different addresses, that's one use case. Thanks for the knowledge! Jan 16 '18 at 20:56
  • yup, I have seen your other posts, and now I know, there's more to it. A newbie user would ask for lost keys ... :-) Jan 17 '18 at 7:59
  • @pebwindkraft haha yeah you're right! Thanks again pebwindkraft! Jan 17 '18 at 14:14

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