Validator Node

This guide will install the latest version and cannot sync from block 0. Therefore, you must use a snapshot. This guide will help you set up a Validator Node for 0G Labs. For official documentation, please refer to the Official 0G Labs docs.

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⚙️ Requirements

• CPU: 8 Cores
• Memory: 64GB RAM
• Disk: 1 TB of storage (NVME)
• Bandwidth: 100 Mbps (Download / Upload)

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🚀 Install

1. Install Dependencies

sudo apt update && sudo apt upgrade -y
sudo apt install curl git wget htop tmux build-essential jq make lz4 gcc unzip -y

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Auto-install Script Powered by ITRocket 🚀

Special thanks to ITRocket for this Auto Install Script.

source <(curl -s https://itrocket.net/api/testnet/og/autoinstall/)

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2. Create Wallet

Create Wallet

To create a new wallet, use the following command. Don’t forget to save the mnemonic

0gchaind keys add $WALLET

Save Wallet Address

To restore existing wallet, use the following command

0gchaind keys add $WALLET --recover

Restore Wallet

If you want to restore an existing wallet, use the following command:

0gchaind keys add $WALLET --eth --recover

Save Wallet & Validator Address

WALLET_ADDRESS=$(0gchaind keys show $WALLET -a)
VALOPER_ADDRESS=$(0gchaind keys show $WALLET --bech val -a)

echo "export WALLET_ADDRESS=$WALLET_ADDRESS" >> $HOME/.bash_profile
echo "export VALOPER_ADDRESS=$VALOPER_ADDRESS" >> $HOME/.bash_profile
source $HOME/.bash_profile

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3. 📊 Check Block Sync

Script by ITRocket:

#!/bin/bash
rpc_port=$(grep -m 1 -oP '^laddr = "\K[^"]+' "$HOME/.0gchain/config/config.toml" | cut -d ':' -f 3)

while true; do
  local_height=$(curl -s localhost:$rpc_port/status | jq -r '.result.sync_info.latest_block_height')
  network_height=$(curl -s https://og-testnet-rpc.itrocket.net/status | jq -r '.result.sync_info.latest_block_height')

  if ! [[ "$local_height" =~ ^[0-9]+$ ]] || ! [[ "$network_height" =~ ^[0-9]+$ ]]; then
    echo -e "\033[1;31mError: Invalid block height data. Retrying...\033[0m"
    sleep 5
    continue
  fi

  blocks_left=$((network_height - local_height))
  echo -e "\033[1;33mNode Height:\033[1;34m $local_height\033[0m \033[1;33m| Network Height:\033[1;36m $network_height\033[0m \033[1;33m| Blocks Left:\033[1;31m $blocks_left\033[0m"
  sleep 5
done

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4. 🔍 Check Node Status

Make sure you see "catching_up": false:

0gchaind status 2>&1 | jq

5. Check Log

tail -f ~/.0gchain/log/chain.log

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🧱 Create Validator

1. Check Balance

Change "wallet_name":

0gchaind q bank balances $(0gchaind keys show "wallet_name" -a)

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2. Create Validator

💡 1000000ua0gi = 1 A0GI

0gchaind tx staking create-validator \
--amount 1000000ua0gi \
--from $WALLET \
--commission-rate 0.1 \
--commission-max-rate 0.2 \
--commission-max-change-rate 0.01 \
--min-self-delegation 1 \
--pubkey $(0gchaind tendermint show-validator) \
--moniker "test" \
--identity "" \
--website "" \
--details "I love blockchain ❤️" \
--chain-id zgtendermint_16600-2 \
--gas-adjustment 1.5 --gas auto --gas-prices 0.00252ua0gi \
-y

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3. Check Validator Info

Change "wallet_name":

0gchaind q staking validator $(0gchaind keys show "wallet_name" --bech val -a)

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🗑️ Delete Node (With Caution!)

⚠️ Critical: Backup Your Validator Key!
Do not lose this key — it is required to run your validator.
File location: /root/.0gchain/config/priv_validator_key.json

sudo systemctl stop 0gchaind
sudo systemctl disable 0gchaind
sudo rm -rf /etc/systemd/system/0gchaind.service
sudo rm $(which 0gchaind)
sudo rm -rf $HOME/.0gchain
sed -i "/OG_/d" $HOME/.bash_profile

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Maintained by BANGCODE
Supported by Maouam’s Node Lab