panelist for the hackathon

Repzip wins top prize at 3rd Bitcoin SV Hackathon

The winners of the Bitcoin Association 3rd Bitcoin SV Hackathon were announced on October 2, the third and final day of the CoinGeek Live conference.

Will Devine’s Repzip got 1st place and won $50,000 in BSV, while Aleksandar Dinkov’s STOTASK got 2nd place and won $30,000 (BSV), and Niels van den Bergh’s project Kyrt got 3rd and won $20,000 (BSV).

As time goes on and the winners continue to develop their hackathon submission, you will learn more about what each project does. However, on September 30, each of the three finalists gave a presentation on the first day of CoinGeek Live to explain to the panel of judges as well as the audience about what they had built for the hackathon.


Repzip is a self-sovereign identity and decentralized identity solution in which your unique identifier is your public key. To map the digital identity to your real-life identity, Devine says that the identity verifier can ask the individual at hand a question that is encoded to their public key and if they respond to that question and sign it then you know that they have the private key for that public key and therefore are the owner of that identity.

When it comes to how Devine imagines a solution like Repzip being used, he explains,

An employee will create a self-signed Digital identity (DID) and send it to their HR department. The HR department will create that tx on-chain within their Metanet nodes that they control, therefore, if you get fired, the employer has control of your DID in the Metanet, which will allow them to say you are fired, therefore, if you try to do something like open a door that only an employee can, you won’t be able to do it thanks to the system identifying the restrictions on your DID.


STOTASK is a company that revolves around data labeling. STOTASK capitalizes on the fact that even though companies prefer to label data with AI because it is often faster and cheaper, at the end of the day, humans will always be needed to train the machine learning algorithms labeling the data.

On STOTASK, humans train machines how to think and receive micropayments for the work that they do. It is perfect for individuals looking to earn some pocket money as well as businesses that work with AI or businesses that sell large amounts of data.


Kyrt’s goal is to become the world’s blockchain integration partner of choice. On KYRT, you can connect over 2,000 apps that you probably use every day to the blockchain and receive micropayments for your interaction with the app and the blockchain. 

For example, “whenever Mailchimp receives a new sub, KYRT can send an automated micropayment to the subscriber to incentivize a newsletter opt-in,” said Neils van den Bergh.

“Or, KYRT can listen to on-chain events so that whenever a certain payment is received by a certain address it can do an action like an outbound email.”

More hackathons to come

We’d like to congratulate each of the three finalists as well as all of the individuals and teams who submitted a project to the Bitcoin SV Hackathon. Over 400 individuals participated in this hackathon and worked toward the Hackathon’s goal of connecting the world to one blockchain, the Bitcoin blockchain. Several projects received honorable mentions but Devine, Dinkov, and van den Bergh’s project stood out the most.

If you missed the finalists presenting at the Hackathon, you can watch the full presentation below. 

YouTube video

And if you happened to miss this Bitcoin Association Hackathon, do not worry, there will be more Bitcoin Association Hackathons in the future so be on the lookout!

Watch CoinGeek Live 2020 Day 3 here.

YouTube video

New to blockchain? Check out CoinGeek’s Blockchain for Beginners section, the ultimate resource guide to learn more about blockchain technology.