Ecash

eCash was a digital-based system that facilitated the transfer of funds anonymously

Kagan, Julia. “eCash: Overview, Rise and Fall.” Investopedia, 31 Mar. 2021, www.investopedia.com/terms/e/ecash.asp#:~:text=eCash%20was%20a%20digital%2Dbased,use%20the%20Internet%20for%20micropayments.