Some countries, including the US, are exploring a new type of money that can be spent only electronically.

Discreet Log Contracts are a new type of smart contract that limits the role of oracles, and can run on Bitcoin's limited scripting system.

BibTeX Citation: @misc{dryja2020lower, title={A Lower Bound for Byzantine Agreement and Consensus for Adaptive Adversaries using VDFs}, author={Thaddeus Dryja and Quanquan C. Liu and Neha Narula}, year={2020}, eprint={2004.01939}, archivePrefix={arXiv}, primaryClass={cs.DC}