The goal of Utreexo is to make running a full node easier, faster, and smaller, and while that’s more of an asymptote than a point on any curve, we’re getting there. Today we’ve released Utreexo demonstration 0.2, which pairs the Utreexo accumulator with a modified version of btcd(temporarily called utcd). Most of the utcd work was done by Calvin Kim, as Niklas Gögge and myself have been working on improving the accumulator and how it interacts with the bitcoin data structures. Calvin has written a post about the work as well.
This new release works more like a normal bitcoin node: it starts up, finds peers, and verifies the blockchain. There are still things it doesn’t have, like a mempool, or a way to deal with reorgs. (It currently deals with reorgs by crashing.)
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