Like XML, blockchains are kinda fundamentally misguided; they don't solve a problem that is actually important. XML solved syntax, which turned out not to be the problem. Blockchains [purport to] solve centralization, which will turn out not to be the problem.
G. Bex, F. Neven, and J. Van den Bussche. WebDB '04: Proceedings of the 7th International Workshop on the Web and Databases, page 79--84. New York, NY, USA, ACM Press, (2004)
A. Tamayo, C. Granell, and J. Huerta. (2011)cite arxiv:1110.0207 Comment: 9 pages, 10 tables, 4 figures; COM.Geo '11 Proceedings of the 2nd International Conference on Computing for Geospatial Research & Applications, ACM, no. 17, 2011.