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Validator Node

This guide will help you set up a Validator Node for OG Labs. For official documentation, check here.

Requirements

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

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

2. Auto-install script powered by ITRocket 🚀

Smooth, reliable, and straight to the point — just how we like it at AstroStake.

Why write it from scratch when it’s already clean and battle-tested?

Huge thanks to ITRocket for keeping things clean and effortless.

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

3. Setup wallet

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

0gchaind keys add $WALLET

Save wallet and 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

4. 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

5. Check node status

Make sure "catching_up": false

0gchaind status 2>&1 | jq

6. Create Validator

Check your balances first. change wallet_name

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

Edit Validator Info

Edit moniker identity website details

amount 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

Check Validator info

change wallet_name

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

Delete node

⚠️ 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