Ensure you have the following tools installed:

• Node.js (with Yarn)
• Docker
• Rust
• Hardhat

Make sure [rustup] is installed. The [rust-toolchain.toml][rust-toolchain] file will be used by cargo to automatically install the correct version.

To build all methods and execute the method within the zkVM, run the following command:

cargo build --release 

Start the Hardhat Node or use Ethereum chains

To start local node:

yarn hardhat node

Start nats server

Run the NATS server using Docker with the following command:

docker run --name nats --network nats --rm -p 4222:4222 -p 8222:8222 nats --http_port 8222 --js

Build the Risc0 Project

Before deploying, make sure to build the Risc0 project. Then, if needed, deploy the RiscZeroGroth16Verifier and NearBlockVerifier.

Export your private key

Set your private key in the environment variable:

export PRIVATE_KEY=<your_private_key_here>

Deploy the Verifiers

Run the deployment script for the RiscZeroGroth16Verifier:

npx hardhat run --network localhost scripts/deploy_RiscZeroGroth16Verifier.ts

You should see an output similar to:

Compiled 39 Solidity files successfully (evm target: paris).
RiscZeroGroth16Verifier deployed to: 0x73511669fd4dE447feD18BB79bAFeAC93aB7F31f

Set the deployed verifier address in the environment variable:

export VERIFIER=0x73511669fd4dE447feD18BB79bAFeAC93aB7F31f

Run the deployment script for the NearVerifierRisc0:

npx hardhat run --network localhost scripts/deploy_NearVerifierRisczero.ts

Set the NEAR_BLOCK_VERIFIER_CONTRACT environment variable (update with your contract address):

export NEAR_BLOCK_VERIFIER_CONTRACT=<your_near_block_verifier_contract_address>

Start the Proving Services

Start the proving server for Epoch proving with the following command:

RUST_LOG=info cargo run --release --bin proving_server --features cuda

Run the proving service for Random blocks with the following command:

RUST_LOG=info cargo run --release --bin random_service --features cuda

Start Backend server for handling connection with contract To start the application, run:

yarn start

Await Proving Epochs.

Generating a number of epochal proofs requires approximately 10 minutes for every 3 epochs. The starting height for deployed contract is 130391511, you can see in deployment scripts.

Send proving request to prove random Block

To send a block for proof generation, use the following curl command:

curl -X POST http://127.0.0.1:9024/generate-proof \
     -H "Content-Type: application/json" \
     -d '{
           "hash": "21KvQHi3aTTDk8vXjbRJ8HuPkiyVTywfgARjbMu5aUV4"
         }'