Hyperledger FABRIC:
Fabric is Hyperledger most active project to date.
It is a permissioned blockchain, originally contributed by IBM and Digital Asset.
A unique characteristic of Fabric is that its distributed ledger and smart contract
platform allows for private channels.
Capability of executing of Smart Contracts (called "chaincode" in Fabric) and
configurable consensus and membership services.
Examples:
- IBM Food Trust: Blockchain-based service designed to improve food source traceability Walmart, Kroger, Driscoll’s, Dole, McCormick, McLane Co., Nestlé, Tyson Foods, Unilever etc.
- NIIT Technologies Chain-m, a Blockchain powered solution for Airlines and its partners.
- China’s largest retailer, JD.com, offers its own JD Blockchain Open Platform to help enterprise customers streamline a wide range of operational procedures.
- The China Pacific Insurance Company is using JD Blockchain platform to deploy a traceable system for e-invoices, which are official receipts required in China for business.
- American Association of Insurance Services, a not-for-profit insurance advisory organization, has developed openIDL (open Insurance Data Link), designed to automate insurance regulatory reporting.
Hyperledger SAWTOOTH:
Contributed mainly by Intel.
It includes a novel consensus algorithm called (POET) Proof of Elapsed Time, A
lottery-design consensus protocol.
Sawtooth consensus software targets large distributed validator populations with
minimal resource consumption.
It may give us the ability to build very broad and flat networks of hundreds to
thousands of nodes.
Supports Ethereum smart contracts via "seth".
Example:
Direct trade organic coffee seller Cambio Coffee provides a clear, traceable supply chain path
for its products–from harvesting to roasting, packaging, and shipping.
So customers could learn the exact
details of what they are buying and
drinking.
“Our goal is to connect the consumer
to the origin story,” Cambio Coffee.
“So far we have been doing it through
our marketing material. Now
blockchain technology gives us a way
to validate our claims.
Hyperledger INDY:
The idea is to provide digital identities for individuals and give them the power to share
their identity with whom they chose.
Instead of being an entry in a giant database, you have your data and deal
programmatically with different organizations who want to check your identity.
Companies don’t have to store so much personal data. They can store a pointer to the
identity.
Indy’s blockchain software is based on data minimization.
When a company is done with your data, it throws it away.
Hyperledger BURROW:
Burrow project includes a permissioned, smart-contract interpreter built in part to the
specification of the Ethereum Virtual Machine (EVM), hosted by The Linux Foundation.
Ethereum platform is used both for cryptocurrency as well as for smart contracts. It’s
written with the Solidity programming language,
Within the Burrow Project, the EVM is the interpreter for smart contracts that run
across the Ethereum network.
Light weight & Fast, uses BFT consensus algorithm.
Many well-known companies belong to the Enterprise Ethereum Alliance, including
JPMorgan, Microsoft, Accenture, BP, and Cisco.
Hyperledger IROHA:
Iroha project is a bit of an outlier within Hyperledger.
It originated with some developers in Japan who had built their own blockchain
technology for a couple of mobile use cases.
BFT consensus algorithm, No mining, Robust permission system,
Command (Build in Smart Contract) less room for errors.
It’s implemented in C++ which can be more high performance for small data.
Being used in Kingdom of Cambodia to create a new payment system alongside the.
National Bank of Cambodia, (along with healthcare, finance and identity management.)