Sunil Pai with optical setup (IMAGE) Optica Caption Researchers have developed a new light-based computing scheme called LightHash that reduces the energy necessary for cryptocurrency and blockchain applications. First author Sunil Pai is pictured with the optical setup used for the new research. Credit Stanford University Usage Restrictions None License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.