Blockchain: Data Malls, Coin Economies and Keyless Payments
It addresses potential uses of blockchain for data marketplaces and payments, but is incremental as it reviews existing ideas without new implementations.
The paper explores blockchain applications beyond cryptocurrencies, focusing on data malls, data provenance, and keyless payments, with discussions on voting and other areas, but does not present specific results or numbers.
We discuss several uses of blockchain (and, more generally, distributed ledger) technologies outside of cryptocurrencies with a pragmatic view. We mostly focus on three areas: the role of coin economies for what we refer to as data malls (specialized data marketplaces); data provenance (a historical record of data and its origins); and what we term keyless payments (made without having to know other users' cryptographic keys). We also discuss voting and other areas, and give a sizable list of academic and nonacademic references.