So, this is purely theoretical, let's say that you wanted to blacklist a coin, you know a past state of the coin before it's been mixed and sent to a new account.
Is this possible? I realize requires programming changes, I just don't fully understand the algorithm and am trying to figure it out. I'm imagine an asset that could ride along a similar system and wondering how it would work.. there are reasons you'd want it in that scenario.
Basically I know that account A, whose public key is known, has a coin in it. The account holder passes it on a few times, including a couple of ring signature anonymizations, then wants to disable it so it can no longer be passed on.
Is it possible or does the anonymization unlink it from the original account?