Hyperledger Sawtooth

Hyperledger Greenhouse is an open-source consortium for developing business blockchain technologies; it is hosted by the Linux Foundation. Within the greenhouse, diverse global communities collaboratively develop open-source projects that uniquely approach enterprise blockchain challenges. These technologies can cross-pollinate and inter-operate just like how the communities driving the projects collaborate in an open and neutral environment.

Hyperledger Sawtooth

Hyperledger Sawtooth is developed primarily for enterprise use. It is designed to facilitate the development of decentralized​ ledgers and secure smart-contracts. It can be installed on-prem or on a remote cloud server.

On-chainStoring data in a publicly accessible blockchain service. methodology lets enterprises manage all aspects of the Sawtooth network through the network itself. For example, if the participants of the network want to implement new policies or change some configurations, Sawtooth transactions may be used.

The consensus algorithms can also be changed in real-time in an operational network. For example, Practical Byzantine Fault Tolerance (PBFT) can be used initially, then the network may be shifted to Proof of Elapsed Time (PoET).

The internal database (key-value or relational) of an organization can be integrated with a Sawtooth network. This really means that all the data on the blockchain network may also be used by the organization internally.

SDK

The Sawtooth Software Development Kit covers a wide variety of languages that can all be deployed simultaneously. For example, Ethereum contracts may be deployed alongside a Java contract.