Welcome to Corda !

Corda is an open-source blockchain platform. If you’d like a quick introduction to blockchains and how Corda is different, then watch this short video:

Want to see Corda running? Download our demonstration application DemoBench or follow our quickstart guide.

If you want to start coding on Corda, then familiarise yourself with the key concepts, then read our Hello, World! tutorial. For the background behind Corda, read the non-technical platform white paper or for more detail, the technical white paper.

If you have questions or comments, then get in touch on Slack or ask a question on Stack Overflow .

We look forward to seeing what you can do with Corda!

Note

You can read this site offline. Either download the PDF or download the Corda source code, run gradle buildDocs and you will have a copy of this site in the docs/build/html directory.

• Release notes for Corda 4
• Upgrading apps to Corda 4
• Upgrading your node to Corda 4

Development

• Quickstart
• Key concepts
• CorDapps
• Tutorials
• Tools
• Node internals
• Component library
• Serialization
• JSON
• Troubleshooting

Operations

• Nodes
  • Node folder structure
  • Node identity
  • Node configuration
  • Node command-line options
  • Node administration
  • Deploying a node to a server
  • Node database
  • Database access when running H2
  • Node shell
  • Interacting with a node
  • Creating nodes locally
  • Running nodes locally
• Networks
  • What is a compatibility zone?
  • Network certificates
  • The network map
  • Cipher suites supported by Corda
  • Joining an existing compatibility zone
  • Joining Corda Testnet
  • Deploying Corda to Testnet
  • Using the Node Explorer to test a Corda node on Corda Testnet
  • Setting up a dynamic compatibility zone
  • Setting up a notary service
• Official Corda Docker Image
  • Running a node connected to a Compatibility Zone in Docker
  • Running a node connected to a Bootstrapped Network
  • Generating configs and certificates
  • Joining TestNet
  • Joining an existing Compatibility Zone
• Azure Marketplace
  • Pre-requisites
  • Deploying the Corda Network
  • Using the Yo! CorDapp
  • Viewing logs
  • Next Steps
• AWS Marketplace
  • Pre-requisites
  • Deploying a Corda Network
  • Build and Run a Sample CorDapp
  • Next Steps
• Load testing
  • Configuration of the load testing cluster
  • Running the load tests
  • Configuration of individual load tests
  • How to write a load test
  • Stability Test
• Shell extensions for CLI Applications
  • Installing shell extensions
  • Upgrading shell extensions
  • List of existing CLI applications

Corda Network

• Corda Network
  • Introduction to Corda Network
• Key services
  • Identity Service
  • Network Map Service
  • Notary Service
  • Support Service
  • CRL configuration
• Corda Network: UAT Environment

Participate

• Contributing
  • Contributing philosophy
  • How to contribute
  • Building Corda
  • Testing your changes
  • Checking API stability
  • Building the documentation
  • Code style guide
  • CLI UX Guide
  • Extending the state machine
• Deterministic Corda Modules
  • Generating the Deterministic Modules
  • Configuring IntelliJ with a Deterministic SDK
  • Testing the Deterministic Modules
  • Applying @KeepForDJVM and @DeleteForDJVM annotations
• Changelog
  • Version 4.0

Design docs

• Design review process
  • Design doc template
• Certificate hierarchies
  • Overview
  • Background
  • Scope
  • Requirements
  • Design Decisions
  • Target Solution
• Failure detection and master election
  • Background
  • Constraints/Requirements
  • Design decisions
  • Proposed solutions
  • Recommendations
  • Conclusions
• Float Design
  • Overview
  • Scope
  • Timeline
  • Requirements
  • Design Decisions
  • Target Solution
  • Implementation plan
• High availability support
  • Overview
  • Requirements
  • Timeline
  • Design Decisions
  • Target Solution
  • Implementation plan
  • The Future
• High Performance CFT Notary Service
  • Overview
  • Background
  • Scope
  • Requirements
  • Design Decisions
  • Target Solution
  • Design Decisions
  • TECHNICAL DESIGN
  • Functional
  • Non-Functional
  • Operational
  • Security
  • APPENDICES
  • Kafka throughput scaling via partitioning
• Monitoring and Logging Design
  • Overview
  • Background
  • Scope
  • Requirements
  • Design Decisions
  • Proposed Solution
  • Complementary solutions
  • Technical design
  • Software Development Tools and Programming Standards to be adopted.
  • Appendix A - Corda exposed JMX Metrics
  • Appendix B - Corda Logging and Reporting coverage
  • Appendix C - Apache Artemis JMX Event types and Queuing Metrics.
• SGX Integration
  • Privacy model + non-notary provisioning
  • Privacy model + notary provisioning
  • Integrity model + non-notary provisioning
  • Integrity model + notary provisioning
  • Threat model
  • Summary
• Reference states
  • Overview
  • Background
  • Scope
  • Requirements
  • Design Decisions
  • Target Solution
• SGX Infrastructure design
  • High level description
  • Infrastructure components
  • Infrastructure interactions
  • Decisions to be made
  • Further details
  • Example deployment
• Corda Threat Model
  • Scope
  • The Corda Network
  • Threat Model
  • Conclusion
• Signature constraints
  • Background
  • Goals
  • Non-goals
  • Design details
  • Alternatives considered
• Package namespace ownership
  • Background
  • Goals
  • Non-goals
  • Design
• CorDapp Minimum and Target Platform Version
  • Overview
  • Background
  • Goals
  • Non-goals
  • Timeline
  • Requirements
  • Design
  • Technical Design