REPZIP wins 3rd Bitcoin SV Hackathon

martin coxall standing
By Martin Coxall Published: October 2, 2020
bsv hackathon repzip winner announcement

Bitcoin Association are delighted to announce Repzip as the winner of the 3rd Bitcoin SV Hackathon.

The competition saw more than 400 people from 75 countries compete to build a creative project on the Bitcoin SV blockchain over an eight-week period. Out of 42 projects, entries were whittled down to three outstanding finalists, each with a chance to win a share of the US$100,000 BSV prize pool. The final positions were determined by judge and audience vote, which Bitcoin Association founder Jimmy Nguyen said resulted in a close race, with all finalists receiving at least one first-place vote.

On the competition, Hackathon judge and nChain CTO Steve Shadders said:

“I think the Hackathon is an enormously positive thing for Bitcoin because the reasons they get done in the first place is to nurture the most valuable asset that we have, which is the engineering talent in the Bitcoin space. It’s about bringing new developers in, and giving both the new and old ones the chance to really sink their teeth into something.”

This year’s theme, providing a guiding North Star to entrants, was ‘Connecting the world to one global blockchain’. The format of the latest Hackathon changed from previous competitions in that participants had 8 weeks to conceive and develop their entry, as opposed to just 48 hours in the past.

“We saw some amazing stuff from the first two hackathons, which were the 48-hour format, but this time we definitely saw people put a lot more thought into what they wanted to build before they started to build,” says Shadders.

“In almost every entry, there was a very obvious connection to the theme. I think that’s a result of the fact that they had more time to think about what they wanted to build.”

This week, at CoinGeek Live, the three finalists presented their projects to the Hackathon judges and the thousands of conference viewers, who had the opportunity to vote over the balance of the conference.


WINNER ($50,000): REPZIP

Repzip is the winner of the 2020 Bitcoin SV Virtual Hackathon.

Repzip is an online identity provider which uses the Bitcoin SV blockchain to create, manage and verify online identity requests. It integrates with Paymail and third-party attestation to solve one of the internet’s oldest problems: identity verification.

“Repzip is an online identity system which takes pains to be compliant with standards that have been developed by WC3 and are likely to gain global adoption,” said  Shadders.

“Identity is a critical issue, and Bitcoin is well placed to solve problems around provable identity – so it was a great fit. “



Stotask is an app which matches machine learning developers and businesses with users looking for small, fast ways to earn money. The idea was inspired by workers who have long periods of idle time at their jobs and who might want to stay productive.

“Stotask is a really interesting application that connects humans and machines,” says Shadders.

“It’s centred around machine learning and the problem of classification of data in machine learning that enables to AI to be trained – but you need humans for that work.”

“It essentially creates a gig economy around itself that allows the people who own data that needs to be classified to connect with people who want to earn some extra income by doing very simple tasks.”

“It is a clever way to address the theme, which is one global blockchain.”



Kyrt is a data platform that integrates with event-automation company Zapier, adding Bitcoin SV microtransactions to events. Leveraging Bitcoin SV, Kyrt can be used, for example, to allow an online ticketing platform to accept payment in Bitcoin and then activate other workflows (for example, by emailing out tickets) in response to successful payment.

“The thing that struck me about Kyrt is the smarts that they showed in picking a platform like Zapier and building Bitcoin integration with it,” said Shadders.

“Immediate access to 2,000 different applications with an interface that allows you to access functionality and connects with these applications without needing a coder – that opened up a world of possibility for things that can be built using Bitcoin SV.”