Re: [bitcoin-dev] BIP Status updates (including to Active/Final Status) - BIP 39, BIP 43, BIP 44, BIP 67, BIP 111, BIP 125, BIP 130

[Jonas Schnelli <dev@jonasschnelli.ch>]

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Hi

> 6 - Finally, and most importantly, BIP39 seed phrases do not have a
> version number. Without a version number, how are you going to derive
> addresses from a BIP39 seed phrase, when wallets start to use to new
> derivation methods (such as SegWit, or Schnorr signatures)? Does it mean
> that a BIP39 compatible wallet will have to check addresses from all the
> derivation methods that ever existed in the past, in order to ensure
> that all coins are correctly retrieved? Or will there be users that
> cannot access their coins because their BIP39 seed phrase is too old for
> newer software?

I totally agree with Thomas.

Another thing that I think could be a BIP misdesign:

BIP44 Gap Limits
From the BIP:

----------
  "Address gap limit is currently set to 20. If the software hits 20
unused addresses in a row, it expects there are no used addresses beyond
this point and stops searching the address chain."
----------

* Does that mean, we do a transaction rescan back to the genesis block
for every 20 addresses?
* Or is it a prerequirement to do a wallet recovery after BIP44's to
have access to a full address-indexed blockchain?

Or maybe I'm missing something.

</jonas>


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