Hyperledger : Open-source Blockchain Framework & Free course at EDX by LINUX Foundation
Hyperledger is an open source framework to deploy blockchain technology. You can find a free course on Hyperledger at EDX designed by LINUX foundation called Blockchain for Business - An Introduction to Hyperledger Technologies.
- Another course is at Coursera called IBM Blockchain Foundation for Developers by IBM for software developers over Hyperledger infrastructure.
LINUX foundation's official website for Hyperledger has lots of resources about currently used Blockchain Frameworks. According to them
1. Burrow: provides a modular blockchain client with a permissioned smart contract interpreter built in part to the specification of the Ethereum Virtual Machine (EVM).
2. Sawtooth : includes a novel consensus algorithm, Proof of Elapsed Time (PoET), which targets large distributed validator populations with minimal resource consumption.
3. Fabric : designed to be simple and easy to incorporate into infrastructural projects requiring distributed ledger technology.
4. Indy : provides tools, libraries, and reusable components for creating and using independent digital identities rooted on blockchains or other distributed ledgers for interoperability.