healthy that people are concerned about paper bitcoin games by etfs, mstr, and coinbase unlikely they are running fractional reserve but any that do will get rekt eventually as more coin is stacked to self custody - this is what happened to ftx, blockfi, and celsius ideally more of the industry moves to proof of reserves - this will happen over time due to competition - bitwise, metaplanet, el salvador, and tether already publish addresses - more will in time with free market competitive pressure

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banks (and wannabe banks) voluntarily surrendering the ability to *print money* only happens when we're working with an incomplete model but we'll see ¯⁠\⁠_⁠(⁠ツ⁠)⁠_⁠/⁠¯
seems likely that there are big players with a macro view who will figure it out and lock it down and the vast majority of the Bitcoin community also are greedy and want to make money whether there's enough backbone left to make something of #Bitcoin after the behemoth wakes up remains to be seen revolution requires sacrifice. not at all confident Bitcoiners understand that or are willing to do it.
aut-ct already works as a tool, and can do this. I just need some people to pay attention to it, as well as audit it. But I'm not particularly optimistic about that. With most such tools it's often better to just "launch" something as people's usage will attract the necessary attention. For a "this proves I own bitcoin in this range across N utxos" tool, as exists in aut-ct, the natural user is some medium size bitcoin business that wants to prove utxos with privacy, a much smaller group, more conservative in its actions (and indeed, I can't even recommend using it without some audit, anyway).
> not at all confident Bitcoiners understand that or are willing to do it most bitcoiners are not and that is fine, the strong ride or die base is what matters
the question is "is it enough"? like I said hope springs eternal.
Another thing to keep in mind is that it *requires* using taproot, and (imo) that will continue to be under-adopted until it's in wide adoption on Lightning. You can still get very large anon sets within taproot today, but for a typical user, having to switch infrastructure to taproot may (or may not) be a pain. It's quite striking that while Binance uses sophisticated ZK techniques for the liabilities, for the assets they literally just publish all their addresses in a spreadsheet!
If mempool.space adds a feature to prove you own a UTXO using aut-ct, it could gain some traction.