Is #proofofreserves a larp? nostr:nprofile1qqsvf646uxlreajhhsv9tms9u6w7nuzeedaqty38z69cpwyhv89ufcqpzamhxue69uhhyetvv9ujumn0wd68ytnzv9hxgtcvd6gmf made a point that they don't do UTXO management for each individual account because that would be dumb.

So proof of reserves from nostr:nprofile1qqsrtv3u6qkj6a09tnhr3l0wy67g9uw3t57ftqyqpvztpk3wmd6306spz9mhxue69uhkummnw3ezuamfdejj78rkltp or an ETF would really only prove that they own some bitcoin. You'd still have to trust that more than that wasn't sold right?

For the record, I don't use any of them 

 Did you watch the whole video? Seems pretty cool how they do it. 

 Didn't know there was one. River or the ETFs? 

 You don't need to do individual account UTXO management to do proof of reserves. See the video linked at the top of our reserves page for a walkthrough if you're interested in understanding how it works! https://river.com/reserves