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Ethereum implementation built from scratch to meet Enterprise requirements


Pantheon is an Open Source project maintained by PegaSys, designed with a modular architecture to meet the requirements of Enterprise Ethereum projects. Kaleido has collaborated closely with the PegaSys team throughout the project within the ConsenSys ecosystem of projects, and we are excited to make it available as the newest addition to our protocol option.

Having an independent codebase, written from scratch in Java with Enterprise in mind, provides great opportunities for innovation for this fast paced project.

Pantheon is ready for your Enterprise network workloads.


Enterprise blockchain networks require efficient consensus algorithms, with high throughput characteristics, built-in permissioning, and predictable behaviour.

  • Clique PoA: Provides byzantine fault tolerance, coping with large numbers of permissioned signers through a simple and effective strategy of deciding on block proposers, optimised to minimize (but not prevent) short-lived forks
  • Istanbul Byzantine Fault Tolerance (IBFT): Byzantine fault-tolerant consensus algorithm, with immediate finality, and permissioning



Allow only trusted nodes and accounts to participate in the blockchain. Permissioned networks can have node permissioning enabled, account permissioning enabled, or both. Onchain permissioning uses smart contracts to store and maintain the node whitelist.

Transaction/Contract Privacy

Privacy in Pantheon refers to the ability to keep transactions private between the involved parties. Other parties cannot access the transaction content or list of participating parties. Pantheon’s private transaction manager, Orion, is designed to manage transactions and prevent double spend.

IBFT consensus

Proof of authority based consensus which provides immediate block finality, reduced time between blocks and high data integrity and fault tolerance. Pantheon’s IBFT implementation guarantees immediate finality.

Clique/POA consensus

Proof of authority based consensus. Instead of miners racing to find a solution to a difficult problem, authorized signers create new blocks in a synchronized manner.

Open Source

Community driven and, developed under Apache 2.0 license, Pantheon is used by many organizations and individuals.