[bitcoin-dev] draft proposal: change forwarding (improved fungibility through wallet interoperability)

Yuval Kogman nothingmuch at woobling.org
Tue Nov 6 15:50:38 UTC 2018


I would like to propose a method based on BIP32 (and optionally BIP44) for
improving fungibility and on chain privacy with wallets for which this is
not a primary concern, requiring minimal changes to allow such wallets to
safely forward change outputs to more specialized wallets. This is intended
to complement more comprehensive proposals such as BIP79.

Note that this draft is still incomplete, there are open questions about
the particular format to use. In its current form it proposes two viable
options (and two more are included completeness) and though I have a slight
preference for the first option, I remain undecided given the tradeoffs,
and so I am writing the mailing list to solicit inputs/criticism.


Thanks to SirMeow, Adam Ficsor, and Adam Gibson for reviewing earlier
versions and providing valuable feedback and suggestions.

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