One problem set that seems like a good fit is for actual real estate title/deed information. Having to pay for a "title search" or "title insurance" is bonkers every time a real estate transaction occurs on the same piece of land.
This is a good example of why blockchains aren’t a solution for most problems.
For real estate records, the only thing which matters is what the local government will enforce - digital signatures can be interesting but the anonymity/trustless stuff is an expensive distraction. One big factor here is that you can’t rely on access to keys: someone needs to be able to override records when not uncommon things happen such as an owner dying, a messy divorce, etc.
For title insurance, what you’re paying for is, well, insurance, not a database query. The risk here is that the records don’t match reality - for example, surveying errors happen, a previous seller might not have had clear rights, etc.
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This is a good example of why blockchains aren’t a solution for most problems.
For real estate records, the only thing which matters is what the local government will enforce - digital signatures can be interesting but the anonymity/trustless stuff is an expensive distraction. One big factor here is that you can’t rely on access to keys: someone needs to be able to override records when not uncommon things happen such as an owner dying, a messy divorce, etc.
For title insurance, what you’re paying for is, well, insurance, not a database query. The risk here is that the records don’t match reality - for example, surveying errors happen, a previous seller might not have had clear rights, etc.