Ah, thanks, I suspected the idea was too simple and must have been discussed before, but somehow I missed these proposals. I've got some reading to do.

-Marc

On Thu, Nov 16, 2017 at 11:14 AM, Bryan Bishop <kanzure@gmail.com> wrote:
It's not clear to me if you are have looked at the previous UTXO set commitment proposals.

some utxo set commitment bookmarks (a little old)
http://diyhpl.us/~bryan/irc/bitcoin/utxo-commitments-or-fraud-proofs.stdout.txt

TXO bitfields
http://diyhpl.us/wiki/transcripts/sf-bitcoin-meetup/2017-07-08-bram-cohen-merkle-sets/