I want to know why, with a digital currency like bitcoin, the stolen coins cannot be identified and blocked from use. If the stolen coins could be disabled, then new coins could be automatically reproduced and restored to funds? Why does each coin not have a fingerprint of sorts? Maybe if this idea is antithetical to bitcoin, then another company could create a competing product that was in such a way theft proof, high insurance, etc.
Just wondering.
This would destroy Bitcoin's value. Currency has to be safe from censorship.. There has been many threads on the subject, Search for redlisting, whitelisting, blacklisting.
Consider a simple example. You have a 100 coin stash and pay 1 coin for a service, which turns out to be bad so you get into an argument with the vendor. Vendor checks your original transaction and sees a big change amount, and uses his influence to get your remaining coins blacklisted.