- Validador (PSIS) Integrator's Guide : In this package you will find a basic guide to doing the integration to the service, as well as interesting material to facilitate the integration (for example, for creating clients from WSDL, examples in code source Java 1.5, .Net and Visual Basic 6, etc).
- Validador (PSIS) Integrator Package : Java project that includes a PSIS client built with Apache CXF. Includes Java 1.6 source code examples for all validation and timestamping operations
- Documentation with the specifications of the DSS Messaging Protocol