The HTRC Data Capsule system was prototyped through funding from the Alfred P. Sloan Foundation (2011-2015). The final report is available here: Final report.
Extension of the HTRC Data Capsule project to larger compute resources and better integration with the HTRC worksets was recently funded by a grant from the Andrew T. Mellon Foundation (2016-2018).
Kevin Borders, Eric Vander Weele, Billy Lau, and Atul Prakash, Protecting Confidential Data on Personal Computers with Storage Capsules. Proceedings of the 18th USENIX Security Symposium, Aug. 2009.
Zeng, J., Ruan, G., Crowell, A., Prakash, A., & Plale, B. (2014, June). Cloud Computing Data Capsules for Non-Consumptive Use of Texts. In Proceedings of the 5th ACM workshop on Scientific cloud computing (pp. 9-16). ACM.
Plale, Beth; Prakash, Atul; McDonald, Robert (2015). The Data Capsule for Non-Consumptive Research: Final Report. Available from http://hdl.handle.net/2022/19277