Advancing Blockchain Technology

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What is Quorum?

Enterprise-ready distributed ledger and smart contract platform

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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.

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Privacy &

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& Throughput

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& Governance

Quorum supports both transaction-level privacy and network-wide transparency, customizable to business requirements
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Quorum supports both transaction-level privacy and network-wide transparency, customizable to business requirements

  • All public and private smart contracts and overall system state derived from a single, shared, complete blockchain of transactions validated by every node in the network.
  • Private smart contract state is known to and validated by only parties to the contract and approved third parties, like regulators.
  • Smart contracts written for an existing Ethereum implementation remain network-transparent on Quorum out of the box.
  • Enhancing many existing smart contract designs to meet privacy requirements is simple and straightforward.
  • The Zero-knowledge Security Layer allows for cryptographically assured, private settlement of digitized assets on Quorum.

Quorum supports institutional transaction volumes
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Quorum supports institutional transaction volumes

  • Quorum networks process dozens to hundreds of transactions per second, depending on how the network and smart contracts are configured. Further optimization is ongoing.
  • Rather than proof-of-work (mining), Quorum uses the vote-based QuorumChain, RAFT, or Istanbul BFT (Contributed by AMIS) consensus algorithms.

Quorum supports blockchain transactions among a permissioned group of known participants
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Quorum supports blockchain transactions among a permissioned group of known participants

  • In the initial release, permissioning is manually managed, though planned updates include smart contract based governance tools that allow an agreed upon entity to maintain operational control and enforce cybersecurity best practices.
  • Transaction validation and block creation is distributed throughout the network.
  • Integrated with Comae's Porosity, the first decompiler for the Ethereum Virtual Machine.

Advancing Blockchain Technology

What experts and industry leaders say about QuorumTM

Why Quorum?

Open source, free to use, and enterprise focused

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  • The core innovation of blockchain is digital trust, provable and intrinsic to the system without reliance on an external authority. Similarly, open source code can be transparently vetted and validated to ensure it does exactly what it says it does.
  • While signature validation in a permissioned network adds a peace of mind not present in anonymous networks, Quorum doesn’t compromise on distributed block validation, creation, or a single chain architecture. It’s the best of both worlds.
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  • Open source code invites collaboration and grows more robust through inclusion of diverse perspectives.
  • Quorum is GPL/LGPL licensed, just like Ethereum. This ensures that the platform will be free to use in perpetuity and encourages experimentation.
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  • Quorum is designed to develop and evolve alongside Ethereum. Because it only minimally modifies Ethereum’s core, Quorum is able to incorporate the majority of Ethereum updates quickly and seamlessly.
  • We will continue to release planned features and welcome public contributions. See the For Developers section for more information.

In the Press

Wall Street Journal: JPMorgan Chase, led by CEO Jamie Dimon, is building a new system based on the Ethereum platform

“The hope among Quorum’s developers is that blockchain can solve some of banks’ most intractable problems by replacing a web of connected databases with a single, shared, immutable record of transactions. The problems targeted include long and expensive settlement times, system breakdowns and lack of clarity about risk exposure.”

Fortune: Why JP Morgan Chase Is Building a Blockchain on Ethereum

"The idea is to satisfy regulators who need seamless access to financial goings-on, while protecting the privacy of parties that don’t wish to reveal their identities nor the details of their transactions."


For Developers

Try Quorum for your permissioned blockchain project

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Quorum - Blockchain platform

Quorum provides private smart contract execution and enterprise grade performance with single blockchain architecture

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Cakeshop - Software Development Kit (SDK)

Cakeshop provides an easy to use graphic interface for working with Quorum networks, smart contracts, and APIs

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Quorum Wiki

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Introduction to Quorum architecture

Contact Us

Learn More

Have questions? Email Us at quorum_info@jpmorgan.com

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