The digital assets will be held for at least 20 years, but the document provides for exceptions. The so-called "secretary" will be responsible for the safety and monitoring of the cryptocurrency. He is also required to create a system of evidence of reserves.

"The secretary shall ensure that the [reserve] facilities are geographically distributed throughout the United States to minimize the risk of simultaneous compromise and to enhance resilience," the bill says.

In addition, after the minimum holding period, the secretary must not recommend the sale of more than 10% of the assets from the reserve during a two-year period.