> For the complete documentation index, see [llms.txt](https://docs.validator247.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.validator247.com/testnet/0g_lab.md).

# 0G\_Lab

Info

> <https://x.com/0G_labs>
>
> <https://discord.gg/0glabs>
>
> <https://linktr.ee/0g_labs>

Explorer&#x20;

> <https://explorer.validator247.com/zero-gravity-testnet/staking>
>
> <https://0g-testnet-rpc.validator247.com>

## Hardware Requirement

```
- Memory: 64 GB
- CPU: 8 cores
- Disk: 1 TB NVME SSD
- Bandwidth: 100 MBps for Download / Upload
```

## Installation guide

Install required packages

```
sudo apt update && \
sudo apt install curl git jq build-essential gcc unzip wget lz4 -y
```

Install Go

```
cd $HOME && \
ver="1.21.3" && \
wget "https://golang.org/dl/go$ver.linux-amd64.tar.gz" && \
sudo rm -rf /usr/local/go && \
sudo tar -C /usr/local -xzf "go$ver.linux-amd64.tar.gz" && \
rm "go$ver.linux-amd64.tar.gz" && \
echo "export PATH=$PATH:/usr/local/go/bin:$HOME/go/bin" >> $HOME/.bash_profile && \
source $HOME/.bash_profile && \
go version
```

Install 0gchaind

```
git clone -b v0.1.0 https://github.com/0glabs/0g-chain.git
./0g-chain/networks/testnet/install.sh
source .profile
```

Set Chain ID

```
0gchaind config chain-id zgtendermint_16600-1
```

Initialize Node

```
0gchaind init <your_validator_name> --chain-id zgtendermint_16600-1
```

Download Genesis File & Download Addrbook

```
wget https://raw.githubusercontent.com/Validator247/0G-Lab-chain-id-16600-1/main/genesis.json
wget https://raw.githubusercontent.com/Validator247/0G-Lab-chain-id-16600-1/main/addrbook.json
```

Seeds & Peers

```
PEERS="f878d40c538c8c23653a5b70f615f8dccec6fb9f@54.215.187.94:26656,9d88e34a436ec1b50155175bc6eba89e7a1f0e9a@213.199.61.18:26656"
SEEDS=""
sed -i -e "s/^seeds =./seeds = "$SEEDS"/; s/^persistent_peers =./persistent_peers = "$PEERS"/" $HOME/.0gchain/config/config.toml
```

Create Service

```
sudo tee /etc/systemd/system/0gchaind.service > /dev/null << EOF
[Unit]
Description=0G node service
After=network-online.target
[Service]
User=root
ExecStart=/root/go/bin/0gchaind start
Restart=on-failure
RestartSec=10
LimitNOFILE=65535
[Install]
WantedBy=multi-user.target
EOF

sudo systemctl enable 0gchaind
sudo systemctl daemon-reload
```

## **State Sync**

```
sudo systemctl stop 0gchaind

SNAP_RPC="https://0g-testnet-rpc.validator247.com"

cp $HOME/.0gchain/data/priv_validator_state.json $HOME/.0gchain/priv_validator_state.json.backup
0gchaind tendermint unsafe-reset-all --home ~/.warden/ --keep-addr-book

LATEST_HEIGHT=$(curl -s $SNAP_RPC/block | jq -r .result.block.header.height); \
BLOCK_HEIGHT=$((LATEST_HEIGHT - 2000)); \
TRUST_HASH=$(curl -s "$SNAP_RPC/block?height=$BLOCK_HEIGHT" | jq -r .result.block_id.hash)
echo $LATEST_HEIGHT $BLOCK_HEIGHT $TRUST_HASH

sed -i.bak -E "s|^(enable[[:space:]]+=[[:space:]]+).*$|\1true| ; \
s|^(rpc_servers[[:space:]]+=[[:space:]]+).*$|\1\"$SNAP_RPC,$SNAP_RPC\"| ; \
s|^(trust_height[[:space:]]+=[[:space:]]+).*$|\1$BLOCK_HEIGHT| ; \
s|^(trust_hash[[:space:]]+=[[:space:]]+).*$|\1\"$TRUST_HASH\"|" ~/.0gchain/config/config.toml
more ~/.0gcaind/config/config.toml | grep 'rpc_servers'
more ~/.0gchain/config/config.toml | grep 'trust_height'
more ~/.0gchain/config/config.toml | grep 'trust_hash'

sudo mv $HOME/.0gchain/priv_validator_state.json.backup $HOME/.0gchain/data/priv_validator_state.json

sudo systemctl restart 0gchaind && journalctl -u 0gchaind -f -o cat
```

## **Launch Node**

```
sudo systemctl restart 0gchaind && journalctl -u 0gchaind -f -o cat
```

## Service command

```
sudo systemctl daemon-reload

sudo systemctl enable 0gchaind

sudo systemctl disable 0gchaind

sudo systemctl start 0gchaind

sudo systemctl stop 0gchaind

sudo systemctl restart 0gchaind

sudo systemctl status 0gchaind

sudo journalctl -u 0gchaind -f -o cat
```

## Create wallet

```
0gchaind keys add wallet --eth
```

get your key’s private key

```
0gchaind keys unsafe-export-eth-key wallet
```

Convert from Cosmos wallet to evm

```
echo "0x$(0gchaind debug addr 0g1dywsndf7xh5n3l690cpgw67j8ekjy9wlp8z8dg | grep hex | awk '{print $3}')"    
```

## Create Validator

```
0gchaind tx staking create-validator \
--amount=1000000ua0gi \
--pubkey=$(0gchaind tendermint show-validator) \
--moniker="nodename" \
--identity="keybase" \
--website="zzzzzzz" \
--security-contact="vzzzzzz@gmail.com" \
--details="love validator247" \
--chain-id=zgtendermint_16600-1 \
--commission-rate="0.10" \
--commission-max-rate="0.20" \
--commission-max-change-rate="0.01" \
--min-self-delegation=1 \
--from=wallet \
--fees=10000ua0gi \
--gas=300000 \
-y
```

Delegate your validator ( Change the information as appropriate for your node )

```
0gchaind tx staking delegate 0gvaloper1yrxeg4symqpfv5r3p9jemkwkgm284j5xgusn6g 980000ua0gi --chain-id=zgtendermint_16600-1 --from wallet --fees=20000ua0gi -y    
```