[bitcoin-dev] Bip44 extension for P2SH/P2WSH/...

Pavol Rusnak stick at satoshilabs.com
Fri May 13 17:57:11 UTC 2016

On 13/05/16 18:59, Aaron Voisine wrote:
> This scheme is independent of the number of accounts. It works with BIP44
> as well as BIP43 purpose 0, or any other BIP43 purpose/layout. Instead of
> overloading the account index to indicate the type of address, you use the
> chain index, which is already being used to indicate what the specific
> address chain is to be used for, i.e. receive vs change addresses.

I see the advantage here. But there is a major problem here.

We came up with BIP44 so a wallet can claim it is BIP44 compatible and
you can be 100% sure that you can migrate accounts from one wallet
implementation to another. This was not previously possible when a
wallet claimed it is BIP32 compatible.

Now we have a similar problem. When there is a BIP44 wallet, does it
mean it supports segwit or not? For this reason I would like to see
another BIPXX for segwit, so a wallet can claim it is BIP44, BIP44+BIPXX
or BIPXX compatible and you'll know what other wallets are compatible
with it.

Best Regards / S pozdravom,

Pavol "stick" Rusnak

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