Blockchain Blog

Recapping the 2nd annual Money20/20 Hackathon

The second annual Money20/20 Hackathon was a sold out event that invited over 750 of the most ambitious and talented developers to collaborate and create over 24 hours.

The stakes were high, with $125k in cash prizes, plus another $100k in challenge prizes. As a sponsor, we also rewarded $5k to the best project built on our API, and a MacBook and Xbox to the runner up team.

Nearly 200 projects were created overall, and this year we had 21 different teams building on our API. From those teams, 2 of them each ended up winning one of the $20k finalist prizes, and our sponsor prizes.

[![Congrats, Team Sashi!](](
Congrats, Team Sashi!
## **Sashi: A Bitcoin Wallet For Kids**

One of the $20k prize winners, and our first place sponsor prize was awarded to a team from the National University of Singapore who created a children’s mobile bitcoin wallet called Sashi. The team of five included Cheung Ho Yeung, Lee Cheryl, Benjamin Lim Yi Ming, Lin Xuanyi, and Yap Jun Hao. They were inspired by the lack of financial education tools available to youth, and decided to fill that gap with a resource that is easy to use, and shows kids the benefits of making positive financial choices.

This kid-friendly wallet gives parents access to all of the behind-the-scenes settings, such as adding merchants, setting spending limits, and monitoring the activity in the wallet. Their project involved the use of our Create Wallet, Wallet, and Data APIs. Making bitcoin their currency of choice was an opportunity they saw to help demystify bitcoin, and to help increase adoption among younger age groups.

[![Screenshots showing the parent and child logins, the parent's dashboard, and the child's wallet view.](](
Screenshots showing the parent and child logins, the parent dashboard, and the child’s wallet view.
Kids begin their wallet as a Sashi Baby, and as they demonstrate their new financial knowledge, they can level up to become Sashi Junior, followed by Sashi Warrior, and eventually Sashi Hero.

While the wallet is currently geared towards younger children, the team would like to also allow customizations and features to make Sashi relevant for older children and teenagers, and a way for the user to unlock all features of the wallet once they turn 18.

We think Sashi gives kids a fun introduction to bitcoin, while teaching them some basic financial skills they will need in the future.

Congratulations to the team! We look forward to seeing what comes next for Sashi, and the world of children’s bitcoin wallets.

Pagey: Pay For What You Read

[![Browsing content with Pagey.](](
Browsing content with Pagey.
The team who won a second $20k prize and our runner up sponsor prize created [Pagey](, an iOS app that allows writers to upload their work, and set a rate to charge readers by page, rather than a lump sum for the entire book. Powered by our Create Wallet and Wallet APIs, readers can browse the app for new books, and once they start reading, Pagey will automatically pay the writer in bitcoin for each page read. By charging per page, it offers readers an alternative to paying for an entire book that they may not finish.

For writers to make their books available on Pagey, all they need to do is create a new account, upload their books, and supply a bitcoin address to get paid. Pagey is a great way for readers to try out a new book they’ve been curious about, and to explore new ways for content creators to get paid.  The app was a way for the team to incorporate the use of bitcoin and micropayments in a way that could work on a global scale. Possibilities for the future include Android and web versions, as well as expanding to other types of media, like movies and music.

The team included Pieter Gorsira, Patrick Archambeau, and Alex Sunnarborg.  The three bitcoin enthusiasts are also hard at work on another bitcoin project called, which made an appearance in our API Profile series last year.

Congrats, guys!

You can view all of the awesome projects created at this year’s Money20/20 Hackathon here. If you’re curious about how last year’s hackathon went, check out our blog post.