The Public Test Network the pre-production test network of the Open Charging Network. It should be used to test services in a robust QA environment. The Share&Charge Foundation also uses it to test planned features of the Open Charging Network.
The OCN-Registry for the Public Test Environment can be found on the Volta Test Blockchain by Energy Web under the following public key: 0xd57595D5FA1F94725C426739C449b15D92758D55
If you want to connect your backend service to the Public Text Network, please visit the following page to learn more: Connecting a service (Test Network)
If you want to run your own node connected to the Public Test Network, please visit the following page to learn more: Running a Node (Test Network)