dummy_rollup

This is a dummy rollup project to test posting and retrieving data from Celestia.

Prerequisites

• Rust
• Celestia light node running

Setting up Celestia light node

To start a Celestia light node, use the following command:

celestia light start --core.ip rpc-mocha.pops.one --core.port 9090 --p2p.network mocha --rpc.skip-auth

Environment Variables

• CELESTIA_NODE_AUTH_TOKEN: Authentication token for the Celestia node
  • If not set, ensure you use --rpc.skip-auth when starting your Celestia node

Dependencies

The project uses the following dependencies:

• anyhow: For error handling
• celestia_rpc: For interacting with the Celestia node
• celestia_types: For handling Celestia-specific types
• rand: For generating random data for the blobs
• tokio: For asynchronous runtime
• ctrlc: For handling Ctrl+C interrupts

Usage

Build

cargo build

Run

cargo run -- <namespace_plaintext> <number_of_blobs> <blob_size_in_bytes>

Parameters:

• <namespace_plaintext>: The namespace for your blobs
• <number_of_blobs>: Number of blobs per batch
• <blob_size_in_bytes>: Size of each blob in bytes

Example

cargo run -- testing 9 197278

This will:

1. Connect to your local Celestia node
2. Create a namespace called "testing"
3. Submit batches of 9 blobs (197278 bytes each)
4. Verify each submission by retrieving and checking the blobs
5. Continue submitting new batches with a short delay between them

Example Output

[2025-02-19 12:11:18.965] Starting rollup application
[2025-02-19 12:11:18.967] Configuration - Namespace: testing, Number of blobs: 9, Blob size: 197278 bytes
[2025-02-19 12:11:18.973] Successfully connected to Celestia node
[2025-02-19 12:11:45.845] Batch #1 submitted successfully at height 4770599
[2025-02-19 12:11:53.321] Found 9 blobs at height 4770599
[2025-02-19 12:11:53.321] ✅ Blob 0 verified successfully
...
[2025-02-19 12:11:53.321] ✅ Blob 8 verified successfully
[2025-02-19 12:11:53.321] Batch #1 fully verified

The program will continue running and submitting batches until interrupted with Ctrl+C.