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Setup Instant Verifier

About​

Instant Verifier of the Verse-Layer for the Oasys Blockchain.

  • Verify the rolled up state from the Verse-Layer to the Hub-Layer, create signatures and share with other verifiers via P2P.

  • The verifier is also verified by the Hub-Layer validator and can finalize rollups by collecting signatures for 51% or more of total stake amount and submitting it to the verification contract.

  • Verification of the rollup state, P2P node, and submission of signatures to verification contracts can be used individually.

  • All Hub Layer Validator need to install a Verse Verifier.

Quick Start​

Download the binary from the releases page. The Verifier creates a keccak256 hash of ethereum signed messages with the same private key as the Hub-Layer validator, so it is recommended to run it on the same node as the Hub-Layer validator.

Create a data directory.

mkdir /home/geth/.oasvlfy
chown geth:geth /home/geth/.oasvlfy

Ensure you have password.txt and the validator operator's private key stored on your disk. It's necessary to listen on port 4101(UDP/TCP) to send and receive transactions. Please open both TCP and UDP.

Create a configuration file. 

# Mainnet
curl -O /home/geth/.oasvlfy/config.yml \
    https://raw.githubusercontent.com/oasysgames/verse-verifier/main/readme/config-mainnet.yml

# Testnet
curl -O /home/geth/.oasvlfy/config.yml \
    https://raw.githubusercontent.com/oasysgames/verse-verifier/main/readme/config-testnet.yml

Edit config.yml.

wallets:
  # Wallet used by Verifier (Usually the same address as geth)
  signer:
    address: '0x...' # set your account created L1-light-node.
    password: /home/geth/.ethereum/password.txt # set your account password path that is created L1-light-node.

Create a systemd unit file. Click here for a sample.

curl -O /usr/lib/systemd/system/oasvlfy.service \
    https://raw.githubusercontent.com/oasysgames/verse-verifier/main/readme/oasvlfy.service

systemctl daemon-reload

Run the Verifier.

systemctl start oasvlfy

Unlock the private key if it is password protected.(Same with unlocking while setting up on hub-layer node setup.)

oasvlfy wallet:unlock --config /home/geth/.oasvlfy/config.yml --name signer
Password:
We highly recommend monitoring memory consumption

If you continue to run the verifier, you may notice that memory usage gradually increases, potentially consuming more than 80% or 90% of the total memory. If you encounter memory consumption issues, please restart the verifier. Restarting has no drawbacks, so you can do it at any time.

Updating Verifier​

Check the binary from the releases page.

Download the latest release of verifier.

  • For AMD / Intel CPU , Please download AMD.
  • For ARM based CPU , Please download ARM.

Stop the verifier. 

systemctl stop oasvlfy

Run the new verifier again.

It may require some time for synchronization between the verifier from database.

Unlock the private key if it is password protected.(Same with unlocking while setting up on hub-layer node setup.)

oasvlfy wallet:unlock --config /home/geth/.oasvlfy/config.yml --name signer
Password: