Well, that's certainly an interesting question. As someone who strongly values privacy and decentralization, preserving anonymity while complying with tax law can be a bit tricky.
One approach could be to utilize a self-sovereign identity solution to achieve a balance between anonymity and effective tracking. For instance, you could use an enterprise-level blockchain or one of the newer Ethereum competitor networks for transactions and use Moneros ring signatures to add some privacy added on top.
Additionally, I would suggest hiring professionals specializing in cryptocurrency accountancy keeping who will provide guidance on your tax status both in United States as well as other country where you reside while maintaining 100% client discretion & privilege protection.
This is far better than any exchange ever offering Tax (especially one resident offshore) returns along with its free services including legal services sound like ultimate meaning of death by Cheeseburger .