Catchain 1.0 and BCP visualizer

To understand this simulation, read the Catchain whitepaper first.

Interact with the simulation

• Click nodes to view status (locks/commits) and toggle behavior (good, crash, lagging).
• Click Adjust simulation config at the top to change consensus simulation parameters.
• Hover over the Event types at the bottom to read short description.
• Click moving messages to inspect sender/receiver, timings, and embedded actions; drop a message from the overlay with Drop message button.
• Click Candidates in the sidebar to see proposer, priority, and per-node approvals/votes/pre-commits/commits observed.
• Use the speed slider to slow down/accelerate the sim; use Restart round to begin a new round.

Simulation notes

• Timing is approximate — actions are driven by the sim loop and simplified delays, not the precise check_all/process_blocks cadence.
• Catchain dependency handling is simplified: if a node sees a message but lacks one of its parents, it asks peers for that missing block without a vector-time sync.
• Quorums use equal weights (counts), not stake weights.
• Submits are auto-scheduled per priority window; retries and network sync differ from the real catchain and validator logic.
• Null candidate is assumed after its delay.
• VoteFor and slow-mode handling is simplified.