Top CorDapps of 2020

February 01, 2021

Some quick highlights on what stood out to us!

Photo by Kelly Sikkema on Unsplash

The new year is here, and it was a significant one for blockchain. We wanted to take a quick look at the most exciting CorDapps we came upon over the past year.

The ones worth highlighting here are predicated on what our team thought were great ideas, practical use-cases, and ways to use corda that we just wouldn’t have expected.

#Honorable — Snakes and Ladders on Corda

One honourable mention I wanted to make is the snakes and ladders CorDapp by @iashutoshmeher. Ashutosh is one of our developer evangelists, and when he commits to building a CorDapp he does not disappoint! His CorDapp was a full implementation of snakes and ladders constructed on top of Corda so that players could use Corda to be sure of no funny business!

It uses a Tomcat web server to host the game from the Corda node itself and allows players to trigger Corda transactions that update the game state from within the browser.

You can find a link to Ashutosh’s CorDapp here.

A screenshot of the Snakes and Ladders CorDapp

#3 — A CorDapp for Students Relocating for University

Our number two spot goes to the PR CorDapp by @ajcrypto / @RK3173 on Github. Planning a relocation was a compelling use case, and we’re happy to feature it.

The idea is to use Corda as a broker for information between universities and students who are relocating to university. With a blockchain as the data broker between these parties, the entire process can be streamlined for the students relocating. Nicely done!

Curious to take a look at the code? Find it on GitHub here.

#2— A Centralized Corpus Manager for Machine Learning on Corda

The next CorDapp on our list was the decentralized corpus manager by R3 Solutions engineer @JonathanScialpi!

The project’s idea is to use Corda as a broker for crowdsourcing data for machine learning models. It uses Corda contract verification to ensure that corpus updates are valid and preserve the privacy of the crowdsourcers of the data.

If you’re curious to learn more about the project, you can find Jonathan’s post on the subject here, and you can find the project code on Github.

Some honorable mentions

Before I jump into our top CorDapp, some notable mention is due to a couple of standout moments for CorDapps in 2020:

But Corda of course is versatile with how it can be used. On the developer relations team, we’ve built out CorDapps for Snakes and Ladders and Secret Santa.

A screenshot of the Secret Santa CorDapp, built in December of 2020.

#1 — CLAIMSHARE by IntellectEU

It probably won’t surprise you to see this here if you were a part of the R3 Insuretech challenge earlier this year, as this was the challenge winner. This CorDapp was designed as a fraud detection platform for the insurance market. The idea here is to solve the “double-dipping” problem. They do it using secure computing with Conclave, Corda, and a mix of artificial intelligence tooling to ensure that the same claim can never be submitted twice.

The team documented a comprehensive process their tool is using. It uses a combination of Corda, fuzzy matching, public data, and date matching to be sure that they’ve got a match on the same claim being made multiple times. Double dipping is a critical and fascinating problem for the industry, and I look forward to seeing them solve it.

You can find out more about CLAIMSHARE from their article on it here.

More honorable mentions are also deserved for the teams that came in as runners-up in that challenge:

If you are interested in exploring more Corda Challenges, you should check out our 5G challenge with AWS, Swisscom, and Vodafone.

Did you enjoy the list? Have a CorDapp you want to see featured?
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Want to learn more about building awesome blockchain applications on Corda? Be sure to visit, check out our community page to learn how to connect with other Corda developers, and sign up for one of our newsletters for the latest updates.

— David Awad is a Developer Evangelist at R3, an enterprise blockchain software firm working with a global ecosystem of more than 350 participants across multiple industries from both the private and public sectors to develop on Corda, its open-source blockchain platform, and Corda Enterprise, a commercial version of Corda for enterprise usage.

Follow David on Twitter here.

Top CorDapps of 2020 was originally published in Corda on Medium, where people are continuing the conversation by highlighting and responding to this story.