Welcome to Indy Plenum’s documentation!

• Overview of the system
• Glossary
• Continuous Integration / Delivery
• Plenum Diagrams
  • Release Workflow
  • Consensus Protocol
  • View Change
  • Write Requests
  • Read Requests
  • Storages
  • Catchup Procedure
  • Catchup trigger
  • Checkpoints
• Request handling
  • Request handling
  • Signature verification
• Storage components
  • 1. Ledger
  • 2. State
  • 3. Node Status Database
  • 4. BLS Multi-Signature Database
  • 5. Request to Transaction Mapping Database
  • 6. Timestamp storage
  • 7. Identifier Cache Database (in Indy Node)
  • 8. Attribute Database (in Indy Node)
  • Common Storage abstractions
• Audit Ledger
  • Why It Is Needed
  • How It Is Implemented
  • Where It Is Used
• Ledger Catchup
  • Ledger Catchup Order
  • Ledger Catchup Steps
  • Catchup Actors
  • Catchup Callbacks
  • Ordering during Catchup
  • Relevant Code:
• Message Requests
• Plugins
  • Conventions that need to be followed when defining a new plugin:
  • Plugin setup
  • Demo plugin
• Transaction Author Agreement
  • Why It May Be Needed
  • Transaction Author Agreement (TAA)
  • Transaction Author Agreement Acceptance Mechanisms List (TAA AML)
  • Enabling Transaction Author Agreement
  • Updating Transaction Author Agreement
  • Disabling Transaction Author Agreement
  • Transaction Author Agreement Acceptance metadata in requests
  • How ledger validates Transaction Author Agreement metadata in a request
  • External Audit of Transaction Author Agreement Acceptance
• Start Nodes
  • Notification
  • Initializing Keys
  • Running Node
• Recorder
• ZeroMQ features
  • There are no ZeroMQ API calls to stop accepting new connections
  • There is no ability to track and drop clients connections using ZeroMQ API
  • ZeroMQ creates a separate queue for each client connection
  • ZeroMQ handles all inner queues associated with clients connections in Round-Robin manner
  • You can not monitor ZeroMQ inner queues for incoming/outgoing messages
  • Do not rely on ZeroMQ high watermark