A Golang implementation of Paloma Chain, a decentralized, automation network for smart contracts deployed in the Cosmos, EVM, Solana, and Polkadot networks.

Paloma is the fastest, secure crosschain communications blockchain. For Crosschain Software engineers who want simultaneous control of mulitiple, cross-chain-deployed, smart contracts, Paloma is decentralized and consensus-driven message delivery. Paloma is fast state awareness, low cost state computation, and a powerful attestation system. Polama blockchain enables scaleable, crosschain, smart contract execution with any data source.

Table of Contents

• Talk To Us
• Releases
• Active Networks
• Public
• Private
• Install
• Contributing

Talk to us

We have active, helpful communities on Twitter and Telegram.

• Twitter
• Telegram

Releases

See Release procedure for more information about the release model.

Active Networks

Mainnet

N/A

Testnet Setup Instructions

To get the latest palomad binary:

wget -O - https://github.com/palomachain/paloma/releases/download/v0.5.0/paloma_Linux_x86_64.tar.gz | \
sudo tar -C /usr/local/bin -xvzf - palomad
sudo chmod +x /usr/local/bin/palomad
# Required until we figure out cgo
sudo wget -P /usr/lib https://github.com/CosmWasm/wasmvm/raw/main/api/libwasmvm.x86_64.so

If you're upgrading to the most recent version, you will need to stop palomad before copying the new binary into place.

If you're upgrading from an older version to v0.5.0 do the following:

1. Stop your paloma version and get 0.5.0

service palomad stop 
wget -O - https://github.com/palomachain/paloma/releases/download/v0.5.0/paloma_Linux_x86_64.tar.gz | tar -C /usr/local/bin -xvzf - palomad

2. Delete the old database and get the snapshot genesis and the updated addrbook. Start paloma 0.5.0

palomad tendermint unsafe-reset-all --home $HOME/.paloma
wget -O ~/.paloma/config/addrbook.json https://raw.githubusercontent.com/palomachain/testnet/master/paloma-testnet-6/addrbook.json
wget -O ~/.paloma/config/genesis.json https://raw.githubusercontent.com/palomachain/testnet/master/paloma-testnet-6/genesis.json
service palomad start

Connecting to an existing testnet.

Download and install the latest release of palomad.

Initialize our configuration. This will populate a ~/.paloma/ directory.

MONIKER="$(hostname)"
palomad init "$MONIKER"

Copy the configs of the testnet we wish to connect to

wget -O ~/.paloma/config/genesis.json https://raw.githubusercontent.com/palomachain/testnet/master/paloma-testnet-6/genesis.json
wget -O ~/.paloma/config/addrbook.json https://raw.githubusercontent.com/palomachain/testnet/master/paloma-testnet-6/addrbook.json

Next you can generate a new set of keys to the new machine, or reuse an existing key.

VALIDATOR=<choose a name>
palomad keys add "$VALIDATOR"

# Or if you have a mnemonic already, we can recover the keys with:
palomad keys add "$VALIDATOR" --recover

Head over to https://faucet.palomaswap.com/ and get some funds!

We can verify the new funds have been deposited.

palomad query bank balances --node tcp://testnet.palomaswap.com:26657 "$ADDRESS"

And start the node!

palomad start

If desired we can stake our funds and create a validator.

MONIKER="$(hostname)"
VALIDATOR="$(palomad keys list --list-names | head -n1)"
STAKE_AMOUNT=1000000ugrain
PUBKEY="$(palomad tendermint show-validator)"
palomad tx staking create-validator \
      --fees=1000000ugrain \
      --from="$VALIDATOR" \
      --amount="$STAKE_AMOUNT" \
      --pubkey="$PUBKEY" \
      --moniker="$MONIKER" \
      --website="https://www.example.com" \
      --details="<enter a description>" \
      --chain-id=paloma-testnet-6 \
      --commission-rate="0.1" \
      --commission-max-rate="0.2" \
      --commission-max-change-rate="0.05" \
      --min-self-delegation="100" \
      --yes \
      --broadcast-mode=block

You may receive an error account sequence mismatch, you will need to wait until your local paloma catches up with the rest of the chain.

Running with systemd

First configure the service:

cat << EOT > /etc/systemd/system/palomad.service
[Unit]
Description=Paloma Blockchain
After=network.target
ConditionPathExists=/usr/local/bin/palomad

[Service]
Type=simple
LimitNOFILE=65535
Restart=always
RestartSec=5
WorkingDirectory=~
ExecStartPre=
ExecStart=/usr/local/bin/palomad start
ExecReload=

[Install]
WantedBy=multi-user.target
EOT

Then reload systemd configurations and start the service!

service palomad start

# Check that it's running successfully:
service palomad status
# Or watch the logs:
journalctl -u palomad.service -f

Uploading a local contract

CONTRACT=<contract.wasm>
VALIDATOR="$(palomad keys list --list-names | head -n1)"
palomad tx wasm store "$CONTRACT" --from "$VALIDATOR" --broadcast-mode block -y --gas auto --fees 3000000000ugrain

Setting up a new private testnet

Download and install the latest release of palomad.

Install jq, used by the setup script.

apt install jq

Set up the chain validator.

CHAIN_ID=paloma-testnet-6 \
MNEMONIC="$(cat secret.mn)" \
/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/palomachain/paloma/master/scripts/setup-volume-testnet.sh)"

We should now see an error free execution steadily increasing chain depth.

palomad start

Others wishing to connect to the new testnet will need your .paloma/config/genesis.json file, as well as the main peer designation. We can get the main peer designation with jq:

jq -r '.body.memo' ~/.paloma/config/gentx/gentx-*.json