We discuss the issue of what we call {\em incentive mismatch}, a fundamental problem with public blockchains supported by economic incentives. This is an open problem, but one potential solution is to make application portable. Portability is desirable for applications on private blockchains. Then, we present examples of middleware designs that enable application portability and, in particular, support migration between blockchains.
@article{arxiv.1801.01421,
title = {Towards Application Portability on Blockchains},
author = {Kazuyuki Shudo and Reiki Kanda and Kenji Saito},
journal= {arXiv preprint arXiv:1801.01421},
year = {2018}
}