---
# System prepended metadata

title: 'Guide to Contributing to [Ethereum Colombia clrfund round](https://ethcolombia.clr.fund/#/projects)'

---

Guide to Contributing to [Ethereum Colombia clrfund round](https://ethcolombia.clr.fund/#/projects)
===
[toc]

# WTF is clrfund?

Once upon a time in May'20 an idea was born for a [Trust-minized quadratic matching tool](https://ethresear.ch/t/trust-minimized-quadratic-matching-clr-fund/7352). It uses [BrightID](https://www.brightid.org/) for sybil-resistance and [MACI](https://github.com/privacy-scaling-explorations/maci) for collusion-resistance.

Fast forward 2 years and clrfund has ran quite a few rounds! Here are some you can check out too:
- [BuidlHondoruas](https://grants.buidlhonduras.com/)
- [ETHStaker](https://qf.ethstaker.cc/)
- [ETHPrague](https://qf.ethprague.com/)
- [ETHBarcelona](https://qf.ethbarcelona.com/)
- [ETHLatam](https://qf.ethLatam.org/)
- [Taiwan](https://qf.chain.tw/)
- [Colombia](https://ethColombia.clr.fund/)
- [ZKP](https://www.zkpvoting.tw/)

This time we're [running a round for ETHColombia](https://ethcolombia.clr.fund/#/projects)! Let's explore how to contribute.

# Sign in to the page
Like any typical Dapp, you need to sign in with your Ethereum account!

## 1. Main page - click on top right to connect
![](https://i.imgur.com/WDbpmaP.jpg)

## 2. A pop-up asks you to choose your wallet, pick the one you use!
![](https://i.imgur.com/WIoIRXl.png)

## 3. Arbitrum is used for low gas fees, so make sure you're on the right network!
![](https://i.imgur.com/7Bz9JK4.png)

## 4. Connect your account
![](https://i.imgur.com/VCxJ3Sb.png)

## 5. Sign a message with your wallet to authenticate!
![](https://i.imgur.com/REI4U3j.png)

# Get set up for the round
So the key idea here is sybil resistance therefore BrightID ensure that it is a single individual taking part in the round and not one person with multiple wallets.

## 1. Click on start prep
![](https://i.imgur.com/4JhaeW8.png)

## 2. Read the instructions and make sure you already have BrightID! If not [please follow the steps here](https://brightid.gitbook.io/brightid/getting-started)
![](https://i.imgur.com/HaK2KVw.png)

## 3. Open your BrightID app on your phone and scan the QR code!
![](https://i.imgur.com/yXerzX3.png)

## 4. It will ask you to link the app
![](https://i.imgur.com/F9KsawA.jpg)

## 5. Voila, linked!
![](https://i.imgur.com/e7cfTEM.jpg)

## 6. Now you can see it in your BrightID App
![](https://i.imgur.com/aXxJl44.jpg)

## 7. Once that's done, register for the round itself by clicking 'become a contributor'
![](https://i.imgur.com/XqvZ8kx.png)

## 8. All it does is to sign a transaction
![](https://i.imgur.com/vLd9tRT.png)

## 9. Did I mention gas fees? Don't worry its negligible. Sign it and you're ready!
![](https://i.imgur.com/znkkAQt.png)

## 10. Voila now you are ready to view projects and take part in the round
![](https://i.imgur.com/JcOR587.png)

# Contributing to the round
Here's the fun part, pick your favourite projects!

## 1. Simply click "Add to cart" and it will show up on the right tab with your shopping cart
![](https://i.imgur.com/g9sGAJo.jpg)

## 2. Once you're ready, click "Contribute # DAI to # projects"
![](https://i.imgur.com/58KS3fg.jpg)

## 3. Make sure you confirm on the pop up above!
![](https://i.imgur.com/lbpD91G.png)

## 4. First you need to ensure the DApp can move your DAI, do this by approving the contract
![](https://i.imgur.com/IyBKR0v.png)

## 5. Then, approve the transaction to send the DAI!
![](https://i.imgur.com/7QkQywT.png)

## 6. Oh no! A bug. Well it's okay just Retry. Trust me, it'll work
![](https://i.imgur.com/v3SW2xG.png)

## 7. After sending the transaction again, you can see the transaction on the block explorer yourself. Verifiability is amazing isn't it?
![](https://i.imgur.com/gX72nvQ.png)

## 8. Now if you want to change your allocations, you can do that on your cart too. Just make sure you finish it before the round ends okay!
![](https://i.imgur.com/hxsXl9j.png)
