I agree that 'version' field of bip32 is not necessary and xpriv/xpub should be enough for all cases; there's actually no need to use different BIP32 roots for different altcoins.

I'm happily using one xpub for Bitcoin/Testnet/Litecoin at once, and by having the "cointype" distinction in the bip32 path itself, I'm sure that I don't reuse the same pubkey across blockchains which may be a privacy issue otherwise.

Marek

On Thu, Mar 27, 2014 at 5:28 PM, Pieter Wuille <pieter.wuille@gmail.com> wrote:

On Thu, Mar 27, 2014 at 5:21 PM, Pavol Rusnak <stick@gk2.sk> wrote:
> Cointype in path is for separation purposes, not for identification.

I don't understand what that gains you.

--
Pieter

------------------------------------------------------------------------------
_______________________________________________
Bitcoin-development mailing list
Bitcoin-development@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/bitcoin-development