# StateSync/Snapshot

##                                                    🔥Airchains🔥

##                                                       TESTNET

## [Node installation instructions](https://stavr-team.gitbook.io/nodes-guides/testnets/airchains/node-installation)

## StateSync Airchains Testnet

```bash
SNAP_RPC=https://airchains.rpc.t.stavr.tech:443
cp $HOME/.junctiond/data/priv_validator_state.json $HOME/.junctiond/priv_validator_state.json.backup
sed -i -e "/seeds =/ s/= .*/= \"$SEEDS\"/"  $HOME/.junctiond/config/config.toml
LATEST_HEIGHT=$(curl -s $SNAP_RPC/block | jq -r .result.block.header.height); \
BLOCK_HEIGHT=$((LATEST_HEIGHT - 1000)); \
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\"| ; \
s|^(seeds[[:space:]]+=[[:space:]]+).*$|\1\"\"|" $HOME/.junctiond/config/config.toml
junctiond tendermint unsafe-reset-all --home $HOME/.junctiond--keep-addr-book
mv $HOME/.junctiond/priv_validator_state.json.backup $HOME/.junctiond/data/priv_validator_state.json
wget -O $HOME/.junctiond/config/addrbook.json "https://raw.githubusercontent.com/111STAVR111/props/main/Airchains/addrbook.json"
sudo systemctl restart junctiond && journalctl -fu junctiond -o cat
```

## SnapShot Testnet - updated every 5 hours

{% hint style="success" %}
<https://server-1.stavr.tech/Testnet/Airchains/>
{% endhint %}

```sh
cd $HOME
apt install lz4
sudo systemctl stop junctiond
cp $HOME/.junctiond/data/priv_validator_state.json $HOME/.junctiond/priv_validator_state.json.backup
rm -rf $HOME/.junctiond/data
LATEST_SNAPSHOT=$(curl -s https://server-1.stavr.tech/Testnet/Airchains/ | grep -oE 'air-snap-[0-9]+\.tar\.lz4' | while read SNAPSHOT; do HEIGHT=$(curl -s "https://server-1.stavr.tech/Testnet/Airchains/${SNAPSHOT%.tar.lz4}-info.txt" | awk '/Block height:/ {print $3}'); echo "$SNAPSHOT $HEIGHT"; done | sort -k2 -nr | head -n 1 | awk '{print $1}')
curl -o - -L https://server-1.stavr.tech/Testnet/Airchains/$LATEST_SNAPSHOT | lz4 -c -d - | tar -x -C $HOME/.junctiond
mv $HOME/.junctiond/priv_validator_state.json.backup $HOME/.junctiond/data/priv_validator_state.json
wget -O $HOME/.junctiond/config/addrbook.json "https://server-1.stavr.tech/Testnet/Airchains/addrbook.json"
sudo systemctl restart junctiond && journalctl -fu junctiond -n1000 -ocat
```

## Useful Tools

🔥EXPLORER-T🔥: <https://explorer.stavr.tech/Airchains-Testnet/> `Indexer "ON"`\
🔥API-T🔥: <https://airchains.api.t.stavr.tech>\
🔥RPC-T🔥: [https://airchains.rpc.t.stavr.tech](https://airchains.rpc.t.stavr.tech/) `Snapshot-interval = 1000`\
🔥gRPC-T🔥: [airchains.grpc.t.stavr.tech:152](https://airchains.grpc.t.stavr.tech:152/)

* Peer-T

```bash
bb26fc8cef05cee75d4cae3f25e17d74c7913967@airchains-t.seed.stavr.tech:4476
```

* &#x20;Addrbook-T

```python
wget -O $HOME/.junctiond/config/addrbook.json "https://server-1.stavr.tech/Testnet/Airchains/addrbook.json"
```

* Genesis-T

```bash
wget -O $HOME/.junctiond/config/genesis.json "https://server-1.stavr.tech/Testnet/Airchains/genesis.json"
```

* Auto\_install\_script-T

```bash
wget -O airchaint https://raw.githubusercontent.com/111STAVR111/props/main/Airchains/airchaint && chmod +x airchaint && ./airchaint
```

## 🔥[Decentralization Info](https://github.com/obajay/StateSync-snapshots/tree/main/Projects/Dymension/Decentralization)🔥

<details>

<summary>RPC Scanning</summary>

### We scan nodes in real time every 4 hours. And we provide the final result of RPC endpoints. We cannot influence the operation of these nodes in any way.

```python
If Voting Power is higher than 0 --> then the Node is a validator of the network and may be subject to attack and be a potential threat to the chain.
```

```python
We marked such validators with a red symbol
```

</details>