Someone said, ( It's a ledger, distributed and verified with cryptographic proofs.

suppose anything that uses a ledger could work with a blockchain. Its power comes from its redundancy. There's no way to lose it.

It might be a good way to run an independent and unregulated stock exchange. It would allow for public knowledge of the ownership of all shares as well as voting the shares, and being it can be proven that the shares were voted by the owners the votes can be legally enforceable.)