Each network is based on Hyperledger Indy and each is made up of between 4 and 25 nodes which are operated by Sovrin Stewards.
The Sovrin Foundation acts as a Governance Authority and operates the network as a whole, monitoring and improving performance in support of its ‘Identity for All’ mission.
Production network for scaling live SSI applications & services
Pre-production network for prototyping and demonstrating SSI applications & services
Developer test network for building SSI applications & services and testing pre-production Indy Networks code