💾Node Installation

Picasso Mainnet guide

EXPLORER

• Minimum hardware requirements:

Node Type	CPU	RAM	Storage
Mainnet	8	16GB	250GB

1) Auto_install script

source <(curl -s https://raw.githubusercontent.com/111STAVR111/props/refs/heads/main/Composable/picam)

2) Manual installation

Preparing the server

sudo apt update && sudo apt upgrade -y
sudo apt install curl tar wget clang pkg-config libssl-dev jq build-essential bsdmainutils git make ncdu gcc git jq chrony liblz4-tool -y

GO 1.21.6

ver="1.21.6"
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

Build 08.05.24

cd $HOME && mkdir -p go/bin/
git clone https://github.com/ComposableFi/composable-cosmos
cd composable-cosmos
git checkout v6.6.41
make install

picad version --long | grep -e commit -e version

• version: v6.5.4

• commit: 866ca177d25caa8e080f9df41d282ffe551b9103

Initiation

picad init STAVR_guide --chain-id=centauri-1
picad config chain-id centauri-1

Create/recover wallet

picad keys add <walletname>
           OR
picad keys add <walletname> --recover

Download Genesis

wget -L -O $HOME/.banksy/config/genesis.json https://server-1.stavr.tech/Mainnet/Picasso/genesis.json

sha256sum $HOME/.banksy/config/genesis.json

• ae5ff9e5807c78ddc745a683f197d374959d7c15bc7fd1307208083fa9820335

Set up the minimum gas price and Peers/Seeds/Filter peers/MaxPeers

sed -i.bak -e "s/^minimum-gas-prices *=.*/minimum-gas-prices = \"0ppica\"/;" ~/.banksy/config/app.toml
external_address=$(wget -qO- eth0.me) 
sed -i.bak -e "s/^external_address *=.*/external_address = \"$external_address:26656\"/" $HOME/.banksy/config/config.toml
peers=""
sed -i.bak -e "s/^persistent_peers *=.*/persistent_peers = \"$peers\"/" $HOME/.banksy/config/config.toml
seeds=""
sed -i.bak -e "s/^seeds =.*/seeds = \"$seeds\"/" $HOME/.banksy/config/config.toml
sed -i 's/max_num_inbound_peers =.*/max_num_inbound_peers = 50/g' $HOME/.banksy/config/config.toml
sed -i 's/max_num_outbound_peers =.*/max_num_outbound_peers = 50/g' $HOME/.banksy/config/config.toml

Pruning (optional)

pruning="custom"
pruning_keep_recent="1000"
pruning_keep_every="0"
pruning_interval="10"
sed -i -e "s/^pruning *=.*/pruning = \"$pruning\"/" $HOME/.banksy/config/app.toml
sed -i -e "s/^pruning-keep-recent *=.*/pruning-keep-recent = \"$pruning_keep_recent\"/" $HOME/.banksy/config/app.toml
sed -i -e "s/^pruning-keep-every *=.*/pruning-keep-every = \"$pruning_keep_every\"/" $HOME/.banksy/config/app.toml
sed -i -e "s/^pruning-interval *=.*/pruning-interval = \"$pruning_interval\"/" $HOME/.banksy/config/app.toml

Indexer (optional)

indexer="null" &&
sed -i -e "s/^indexer *=.*/indexer = \"$indexer\"/" $HOME/.banksy/config/config.toml

Download addrbook

wget -O $HOME/.banksy/config/addrbook.json "https://server-1.stavr.tech/Mainnet/Picasso/addrbook.json"

Create a service file

tee /etc/systemd/system/picad.service > /dev/null <<EOF
[Unit]
Description=picad
After=network-online.target

[Service]
User=$USER
ExecStart=$(which picad) start
Restart=on-failure
RestartSec=3
LimitNOFILE=65535

[Install]
WantedBy=multi-user.target
EOF

StateSync Picasso Mainnet

systemctl stop picad
SNAP_RPC=https://composable.rpc.m.stavr.tech:443
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/.banksy/config/config.toml
picad tendermint unsafe-reset-all --home /root/.banksy
wget -O $HOME/.banksy/config/addrbook.json "https://server-1.stavr.tech/Mainnet/Picasso/addrbook.json"
curl -o - -L https://composable.wasm.stavr.tech/wasm-composable.tar.lz4 | lz4 -c -d - | tar -x -C $HOME/.banksy
sudo systemctl restart picad && journalctl -fu picad -o cat

SnapShot Mainnet updated every 5 hours

You can check the size and time of snapshot creation with this command curl -sI https://server-1.stavr.tech/Mainnet/Picasso/pica-snap-1.tar.lz4 | grep "last" && curl -sI https://server-1.stavr.tech/Mainnet/Picasso/pica-snap-1.tar.lz4 | grep content-length | awk '{printf "%.2f GB\n", $2/1024/1024/1024}'

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

Start

sudo systemctl daemon-reload
sudo systemctl enable picad 
sudo systemctl restart picad && sudo journalctl -fu picad -o cat

Create validator

picad tx staking create-validator \
--commission-rate 0.1 \
--commission-max-rate 1 \
--commission-max-change-rate 1 \
--min-self-delegation "1" \
--amount 1000000ppica \
--pubkey $(picad tendermint show-validator) \
--from <wallet> \
--moniker="STAVR_guide" \
--chain-id centauri-1 \
--gas 350000 \
--identity="" \
--website="" \
--details="" -y

🧩Services and Tools🧩

Monitoring

You can set up your node status alarm here - Monitoring

Security

You can create secure management of your wallet and your node by following this links.

TMKMS Wallet Security

Delete node

sudo systemctl stop picad 
sudo systemctl disable picad 
rm /etc/systemd/system/picad .service
sudo systemctl daemon-reload
cd $HOME
rm -rf composable-cosmos
rm -rf .banksy
rm -rf $(which picad )