We no longer have to simply trust large companies to respect and protect our personal data. Push a new era forward by building Blockstack apps that Can't Be Evil. $15,000 in cash prizes and experiences are up for grabs!
Can't Be Evil
Join Blockstack in moving the internet forward! We're looking for developers & entrepreneurs that want to help end data breaches, predatory ad models, and the commoditization & abuse of individuals' digital identities. Enter Part 2 of the 'Can't Be Evil' contest by submitting an app that is private by default, leaves the user in full control of their data, and protects their fundamental digital rights. In other words, submit a Blockstack app and take your first steps into a growing ecosystem that is flipping the status quo on its head.
Eligibility
Requirements
Apps submitted to the Can't Be Evil Contest must also qualify for App Mining, so the submission requirements for that program, as displayed below, must be met. Learn more about App Mining.
Requirements: Your app should integrate Blockstack authentication for logging into your app. Your finished app should be available to the public for use. The application must use a registered domain name and the app should be hosted at a URL belonging to the domain. The app website must use a secured (https) connection.
Prizes
$16,800 in prizes
Most Creative Use of ⚡ | 1st Place
→ $5,000 cash
→ Ongoing App Mining Payments According to Rank
→ Free tickets to an upcoming Lightning event or conference
→ Prize details - https://community.blockstack.org/evil/#prizes
Most Creative Use of ⚡ | 2nd Place
→ $500 cash
→ Ongoing App Mining Payments According to Rank
OR
→ App Mining Payments
→ Blockstack Backpack
→ Sonos One (Gen 2)
→ Prize details - https://community.blockstack.org/evil/#prizes
Most Creative Use of ⚡ | 3rd Place
→ $100 (awarded via Visa gift card)
→ Blockstack t-shirt
→ Blockstack Hoodie
→ Blockstack Backpack
→ Prize details - https://community.blockstack.org/evil/#prizes
Most Useful Daily | 1st Place
→ $5,000 cash
→ Exclusive launch on Dapp.com (features, media mentions, social mentions, AMA with the community & present to at Dapp.com Meetup.)
→ Ongoing App Mining Payments According to Rank
→ Prize details - https://community.blockstack.org/evil/#prizes
Most Useful Daily | 2nd Place
→ $500 cash
→ Ongoing App Mining Payments According to Rank
OR
→ App Mining Payments
→ Blockstack Backpack
→ Sonos One (Gen 2)
→ Prize details - https://community.blockstack.org/evil/#prizes
Most Useful Daily | 3rd Place
→ $100 (awarded via Visa gift card)
→ Blockstack t-shirt
→ Blockstack Hoodie
→ Blockstack Backpack
→ Prize details - https://community.blockstack.org/evil/#prizes
Most Dappy | 1st Place
→ $5,000 cash
→ 30 min Startup CEO Session — including advice on business, funding, product, marketing, or other
→ Ongoing App Mining Payments According to Rank
→ Prize details - https://community.blockstack.org/evil/#prizes
Most Dappy | 2nd Place
→ $500 cash
→ Ongoing App Mining Payments According to Rank
OR
→ App Mining Payouts
→ Blockstack Backpack
→ Sonos One (Gen 2)
→ Prize details - https://community.blockstack.org/evil/#prizes
Most Dappy | 3rd Place
→ $100 (awarded via Visa gift card)
→ Blockstack t-shirt
→ Blockstack Hoodie
→ Blockstack Backpack
→ Prize details - https://community.blockstack.org/evil/#prizes
Devpost Achievements
Submitting to this hackathon could earn you:
How to enter
Entering is easy:
- Register here on DevPost
- Build your app, taking note of the three categories
- Finish by submitting your app to App Mining at https://app.co/mining
Tip: Learn to build a dapp in less than 60 minutes with the Zero-to-Dapp tutorial.
Judges

Elizabeth Stark
CEO, Cofounder - Lightning Network

Kyle Lu
Founder & CEO, Dapp.com

Brandon Kessler
CEO - DevPost
Judging Criteria
-
Judging Overview
Judges will pick the best app submitted to their category by scoring on three criteria from 1-5. Uniqueness and User Experience are shared criteria, the third is unique to the category. More: https://community.blockstack.org/evil-criteria -
All | Overall User Experience
Is the app easy to use? Does the interface make sense? Is it easy to get started and setup? -
All | Uniqueness or innovative
Are there other readily available apps that I can accomplish the same result with? Does the app allow the user to accomplish something new? Does the app have a unique or new business model? -
Category | Lightning - Most Creative Use of Lightning
Importance of Lightning to the App: Is Lightning a critical component of the app? Does the app use a payment model that would much more difficult or impossible with a traditional payment gateway? -
Category | Dapp.com - Most Useful Daily
Daily usefulness: What are the types of apps you can't live without? What apps do you find yourself using multiple times a day? Which app would have the highest impact on your daily life if it went away? -
Category | DevPost - Most Dappy
Importance of Decentralization to App: Are there functions available in the app that couldn't be duplicated in a centralized app? Does the core value hinge on the app being decentralized? Does it use a business model made possible by decentralization?
Questions? Email the hackathon manager
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