Cosmic Horizon Network Testnet: darkmatter-1 Testnet

Quick Links

Genesis: TBA

Git tag: coho v0.1

Block explorer: coming soon

Seeds: TBA

Hardware Requirements

Here are the minimal hardware configs required for running a validator/sentry node

• 8GB RAM
• 4vCPUs
• 200GB Disk space

Software Requirements

• Ubuntu 18.04 or higher
• Go v1.8
• Starport

Installation Steps

Install Prerequisites

The following are necessary to build Cosmic Horizon from source.

1. Basic Packages

# update the local package list and install any available upgrades 
sudo apt-get update && sudo apt upgrade -y 
# install toolchain and ensure accurate time synchronization 
sudo apt-get install make build-essential gcc git jq chrony -y

2. Install Go

Follow the instructions here to install Go.

Alternatively, for Ubuntu LTS, you can do:

wget https://golang.org/dl/go1.18.linux-amd64.tar.gz
sudo tar -C /usr/local -xzf go1.18.linux-amd64.tar.gz

Unless you want to configure in a non standard way, then set these in the .profile in the user's home (i.e. ~/) folder.

cat <<EOF >> ~/.profile
export GOROOT=/usr/local/go
export GOPATH=$HOME/go
export GO111MODULE=on
export PATH=$PATH:/usr/local/go/bin:$HOME/go/bin
EOF
source ~/.profile
go version

Output should be: go version go1.8 linux/amd64

3. Install Starport

This command invokes curl to download the install script and pipes the output to bash to perform the installation. The starport binary is installed in /usr/local/bin.

To learn more or customize the installation process, see Starport installer docs on GitHub.

curl https://get.starport.network/starport! | bash

(Optional) Starport installation requires write permission to the /usr/local/bin/ directory. If the installation fails because you do not have write permission to /usr/local/bin/, run the following command:

curl https://get.starport.network/starport | bash

Then run this command to move the starport executable to /usr/local/bin/:

sudo mv starport /usr/local/bin/

Install Cosmic Horizon from source

1. Clone repository

https://github.com/cosmic-horizon/coho.git
cd coho
git checkout v0.1
starport chain build

2. Init chain

cohod init $MONIKER_NAME --chain-id darkenergy-1

3. Add/recover keys

# To create new keypair - make sure you save the mnemonics!
cohod keys add <key-name> 

# Restore existing odin wallet with mnemonic seed phrase. 
# You will be prompted to enter mnemonic seed. 
cohod keys add <key-name> --recover

Instructions for Genesis Validators

Create Gentx

1. Add genesis account:

cohod add-genesis-account <key-name> 1000000000ucoho --keyring-backend os

2. Create Gentx

cohod gentx <key-name> 1000000000ucoho \
--chain-id darkenergy-1 \
--moniker="<moniker>" \
--commission-max-change-rate=0.01 \
--commission-max-rate=0.20 \
--commission-rate=0.05 \
--details="XXXXXXXX" \
--security-contact="XXXXXXXX" \
--website="XXXXXXXX"

Submit PR with Gentx and peer id

1. Copy the contents of ${HOME}/.cohod/config/gentx/gentx-XXXXXXXX.json.
2. Fork https://github.com/cosmic-horizon/testnets
3. Create a file gentx-{{VALIDATOR_NAME}}.json under the networks/testnets/darkenergy-1/gentx folder in the forked repo, paste the copied text into the file.
4. Create a Pull Request to the main branch of the repository

Await further instruction!