Matt Mathis gave us the idea of using forward error correction for handling the side effect of time stamps. Phil Karn allowed us to use his Reed-Solomon-Code package in our prototype. Maria Ebling and David Eckhardt provided major input for the high-level design of the system. Peter Braam insisted that operation logging must be as transparent as possible to non-interactive applications, and made us think more carefully about the issue. Many people, including John C. S. Lui, Peter T. S. Tam, K. Y. So, Eric Tilton, and Kip Walker, helped in improving the presentation of the paper. Finally, this work would not have been possible without the excellent support of the Coda community.