Nexus Prover Node

You earn NEX Points by contributing compute and interacting with the Nexus ecosystem.

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Can I use multiple devices?

• Yes, you can connect as many devices as you want, including desktops, laptops, mobile phones, and servers
• You can link and manage all your devices from a single Nexus account.
• You can also prove computations in multiple browser tabs simultaneously.

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--> Environments

1- Windows users:

• Install WSL (Windows Subsystem for Linux) using this guide, and follow the following linux instructions in the ubuntu terminal of your Windows WSL

1- VPS users:

• You can buy cheap VPS servers with good performance from Hostbrr
• You can follow this detailed beginner guide for setting up a VPS server

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--> Create account

• Create an account at https://app.nexus.xyz.

• Follow the account linking instructions.

• Your contributions will earn NEX Points.

• Track your progress on the leaderboard.

• Manage all your nodes in one place.

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--> Contribute via Web browser

Login into the dashboard and press the button to start your node

https://app.nexus.xyz/

• You can run prover nodes on multiple browser tabs, desktops, laptops, mobile phones.
• Link and manage all your devices from a single Nexus account.
• More computations = More NEX points

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--> One-click-deployment

1- Register in Mintair

2- Buy a ready-to-go Nexus node

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--> Contribute via Chromium (Browser on VPS)

You can install a Chromium browser on your Linux VPS and run a web-broswer based node on it too. Guide to install Chromium on VPS

• Open as many tabs as you want and run provers on all of them, LOL.
• I'm not sure about the performance but hey i'm just testing it.
• You'd better to have at least 1 CLI node near it too.

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--> Contribute via CLI

You might need a free +8GB RAM, you'd better to test it yourself since the testnet is under cunstructions

1. Install Dependecies

sudo apt update & sudo apt upgrade -y
sudo apt install screen curl build-essential pkg-config libssl-dev git-all -y
sudo apt install protobuf-compiler -y
sudo apt update

curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh

source $HOME/.cargo/env

rustup target add riscv32i-unknown-none-elf

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2. Run Prover

1- Start a screen to keep it running in the background

screen -S nexus

2- Install and run prover

curl https://cli.nexus.xyz/ | sh

3- Register your wallet address

source ~/.bashrc

nexus-network register-user --wallet-address your-wallet-address

• Replace your-wallet-address with your EVM wallet address

4- Run with an existing node ID

source ~/.bashrc

nexus-network start --node-id your-node-id

• Replace your-node-id with the one acquired in the next step.

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3. Create Node ID

• ---> Create Node ID via Web:

1- Go to https://app.nexus.xyz/nodes

2- Click Add Node, click Add CLI Node and copy your node-id and paste in terminal

• ---> Create Node ID via CLI:

1- Create node ID

nexus-network register-node

2- Run node

nexus-network start --node-id your-node-id

• Replace your-node-id with the newly created node id

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Earn more NEX? Run Multiple CLI Nodes:

Now you can create more Node sessions by creating more screens. for example, to create the 2nd node:

• Create 2nd screen:

screen -S nexus2

• Create 2nd node ID:

nexus-network register-node

• Run 2nd Node with 2nd Node ID:

nexus-network start --node-id your-node-id

• Replace your-node-id with the newly created one

Note: Monitor your server's RAM and CPU via htop command to see how many nodes you can run

# install htop
sudo apt install htop

# run htop
htop

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4. Manage your Node screen:

• To minimze the screen: CTRL+A+D

• To return to screen: screen -r nexus

• To kill screen: screen -XS nexus quit

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Debugging

Error: nexus-network: /lib/x86_64-linux-gnu/libc.so.6: version `GLIBC_2.39' not found (required by nexus-network)

1- Confirm your installed GLIBC version:

ldd --version

• It must be 2.39, if not, continue the steps.

2- Install dependencies:

sudo apt update
sudo apt install -y gawk bison gcc make wget tar

3- Download GLIBC 2.39:

wget -c https://ftp.gnu.org/gnu/glibc/glibc-2.39.tar.gz
tar -zxvf glibc-2.39.tar.gz
cd glibc-2.39

4- Create a build directory:

mkdir glibc-build
cd glibc-build

5- Build

../configure --prefix=/opt/glibc-2.39
make -j$(nproc)
sudo make install

cd

6- Instead of running nexus-network command, run /opt/glibc-2.39/lib/ld-linux-x86-64.so.2 --library-path /opt/glibc-2.39/lib:/lib/x86_64-linux-gnu:/usr/lib/x86_64-linux-gnu /usr/local/bin/nexus-network. For example:

/opt/glibc-2.39/lib/ld-linux-x86-64.so.2 --library-path /opt/glibc-2.39/lib:/lib/x86_64-linux-gnu:/usr/lib/x86_64-linux-gnu /root/.nexus/bin/nexus-network register-user --wallet-address your-wallet-address

• Note, In the above command, my nexus-network directory is /root/.nexus/bin/nexus-network, if you got error in finding the correct nexus directory, run these:

source ~/.bashrc
which nexus-network

• Now replace /root/.nexus/bin/nexus-network with the output.