[Bitcoin-development] BIP proposal: Authenticated prefix trees

Peter Todd pete at petertodd.org
Fri Dec 20 10:48:26 UTC 2013

On Thu, Dec 19, 2013 at 05:47:52PM -0800, Mark Friedenbach wrote:
> This BIP describes the authenticated prefix tree and its many
> variations in terms of its serialized representation. Additional BIPs
> describe the application of authenticated prefix trees to such
> applications as committed indices, document time-stamping, and merged
> mining.

Could you expand more on how prefix trees could be used for
time-stamping and merged mining?

>     >>> dict = AuthTree()
>     >>> dict['Curie'] = VARINT(1898)
>     >>> dict('Einstein') = VARINT(1905)
>     >>> dict['Fleming'] = VARINT(1928)
>     >>> dict['中本'] = VARINT(2009)

I'd be inclined to leave the unicode out of the code examples as many
editors and shells still don't copy-and-paste it nicely. Using it in BIP
documents themselves is fine and often has advantages re: typesetting,
but using it in crypto examples like this just makes it harder to
reproduce the results by hand unnecessarily.

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