Where can I find the source code for Quorum, the permissioned Go implementation of Ethereum supporting data privacy?

3 Answers 3


The code is at https://github.com/jpmorganchase/quorum

There are related repos at the parent https://github.com/jpmorganchase, such as quorum-examples, quorum-docs, constellation, and cakeshop.

https://www.jpmorgan.com/country/US/EN/Quorum has a summary and other information such as:

  • Quorum is an enterprise-focused version of Ethereum.

  • Quorum is ideal for any application requiring high speed and high throughput processing of private transactions within a permissioned group of known participants. Quorum addresses specific challenges to blockchain technology adoption within the financial industry, and beyond.

  • Quorum whitepaper

  • contact email: [email protected]


From JP Morgan released its implementation of a permissioned version of Ethereum, the GitHub repository for Quorum is at https://github.com/jpmorganchase/quorum.

From the repository:

Quorum is an Ethereum-based distributed ledger protocol with transaction/contract privacy and a new consensus mechanism.

Key enhancements:

  • QuorumChain - a new consensus model based on majority voting
  • Constellation - a peer-to-peer encrypted message exchange
  • Peer Security - node/peer permissioning using smart contracts


Quorum architecture


Please see my github link https://github.com/prateektiwari7/Quorum-Example

You can see folder in my github where there is easy steps to use this chain and truffle example.

And for installation of Quorum you can visit https://github.com/jpmorganchase/quorum-examples

And to do published smartContact over Quorum here is best Example https://truffleframework.com/tutorials/building-dapps-for-quorum-private-enterprise-blockchains

Hope you like it.

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