1. Features Hyperledger Fabric, consisting of modular architecture and is a

permissioned blockchain infrastructure where between the nodes in the

infrastructure there is a delineation of roles, smart contracts execution

with configurable consensus and membership services. It was the result

of a j oint venture of IBM and Digital Asset, which primarily developed

an integration framework for developing highly scalable blockchain apps

with DLT. The execution of chaincode is done by the peer nodes which in

a Fabric network access ledger data, endorse transactions, and interface

with applications. The approved transactions are delivered to the peers of

the network, and the ordered nodes handle the consistency of the

blockchain.

2. A Hyperledger proj ect that allows a modular blockchain client to develop

a permissible smart contract machine that has the specification of an

EVM is Hyperledger Burrow, hosted by the Linux Foundation. Through

its proof-of-stake consensus engine, the promise of Burrow is to deliver

high transaction throughput and transaction finality. The components of

Burrow are a consensus engine, a smart contract application, an

application blockchain interface, an application binary interface, and an

API gateway.

3 . A distributed ledger designed with a decentralized identity is

Hyperledger Indy which consists of libraries, reusable components, and

tools that let you create digital identities on a blockchain network. Indy

provides a robust and secure ecosystem for private digital identity. To

store a user’s private data on the ledger and to allow third parties to

validate that trusted organizations have issued private credentials or

identities, Indy uses blockchain technology. More control to users is

given by Indy of their private data, and by doing so, it safeguards their

information from malicious attacks and data breaches.

4. Designed for developing distributed ledger networks and applications on

an enterprise blockchain platform, Intel initially contributed to

Hyperledger Sawtooth. Its design isolates the core system from the app

domain, which ensures the complete safety of smart contracts. U nique to

Sawtooth, its dynamic consensus feature facilitates hot-swapping

consensus algorithms in a running network. An advanced parallel

scheduler that divides transactions into parallel flows Sawtooth supports

Ethereum contract compatibility with the Sawtooth-Ethereum integration

proj ect. It allows modifications to the same state by executing