over 4 years ago

All Winners Have Been Notified

Hello Everybody!

It's official! All winners of the hackathon have been contacted! Congratulations to the winners and to everyone who participated. There were many truly amazing submitted projects. I don't envy the judges who had to make the final decisions.

For all projects that successfully submitted for the Blockstack app prize, Blockstack will reach out directly to you in the coming weeks.


To everyone who participated in the hackathon, thank you! We had over 200 participants and over 50 projects submitted. We want to give a huge thanks to sponsors and judges who helped make this all possible!

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over 4 years ago

Judging Update

Judging Is Wrapping Up!

Judges are putting the finishing touches on their assesments as we speak, and winners are being contacted directly throughout this week and weekend. The official announcement of the first place winners will happen at the Bitcoin 2019 conference! First place projects will also be presented at the conference! There will be an additional update of all winners posted here on Devpost as well.

There will be a hackathon ceremony at 11:50 AM on the P2P stage.

Hackers Come Lunch With Us!

We look forward to welcoming you to Bitcoin 2019! As a token of our appreciation,…

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over 4 years ago

Proof of Work: Your Complimentary Ticket to Bitcoin 2019 (Bring a Friend!)

Hi All!

Brandon here! The Judging process is underway, and on behalf of the Bitcoin Games team, WOW! Amazing work folks! The judges are IMPRESSED.


The first prize for submitting a project is a complimentary ticket to the Bitcoin 2019 conference, and I wanted to let you all know that your codes are LIVE. Your code is your devpost screen name. You can enter it on the registration page here (select checkout with fiat). Each individual or team member who successfully submitted a project has a live code.

Bring a friend!

We made your code good for 2 uses,…

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over 4 years ago

Attention! Deadline approaching

Attention! Today is the last day to wrap up your project and submission video for The Bitcoin Games 2019. Submissions are due before 11:45pm CDT TODAY. Find out what time that is in your city.

Final checklist - Did you:

  • Create and upload your demo video?
  • Make your project accessible to Devpost?
  • Clarify what “Hack” you are submitting your project to?
  • Complete your submission form?

Good luck!


If you have any questions about the hackathon, please post on the discussion forum.

over 4 years ago

One week to go—submit early!

The end is near! There’s only one week left to submit your app to the Bitcoin Games. Submissions are due June 9 before 11:45pm CDT. Find out what time that is in your city.

If you haven't started a submission yet, it’s time to get started! (We’ll walk you through our submission form process if you need help.)  If you are still working on your project, no problem, check out the competition resources and jump on the Slack Channel for extra help finishing up.

Submission checklist

Run through this list before you sit back from your project:

    • Have

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over 4 years ago

A Great Submission Video = Key to Success

We know as devs and creatives you’re expertise lies in building and innovation - so keep the momentum going - however, the submission video needs time too! It's often the first (and sometimes only!) thing that judges review. Your video tells the story behind your submission, providing a clear to showcase your app and talent in a video.

Get organized. Write out a script of what you’ll say and demonstrate in your video and rehearse it before recording.  Essentially a good script should talk about:

  • The problem you are addressing
  • Existing solutions to the problem
  • The solution that your

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over 4 years ago

Did you know?! Fun Hack Fact Friday

Did you know?!

Bitcoin Addresses are composed of a version byte which identifies the network where to use the address and the hash of a public key. So we can go backwards and generate a bitcoin address from the ScriptPubKey and the network identifier.

var paymentScript = publicKeyHash.ScriptPubKey;
var sameMainNetAddress = paymentScript.GetDestinationAddress(Network.Main);
Console.WriteLine(mainNetAddress == sameMainNetAddress); // True

It is also possible to retrieve the hash from the ScriptPubKey and generate a Bitcoin Address from it:

var samePublicKeyHash = (KeyId) paymentScript.GetDestination();
Console.WriteLine(publicKeyHash == samePublicKeyHash); // True
var sameMainNetAddress2 = new BitcoinPubKeyAddress(samePublicKeyHash, Network.Main);
Console.WriteLine(mainNetAddress == sameMainNetAddress2); // True

Note: A ScriptPubKey does

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over 4 years ago

Bonus Prizes, Resources + More - Sponsor Spotlight

When it comes to bonus prizes there can never be enough! The Lightning and Liquid Hacks have so many awesome prizes thanks to our great category sponsors!  Let’s take a look at what they have to offer:

Fulgur Ventures:

Focusing on investing in early stage startups focused on building next generation financial system, Fulgur Ventures combines decades of experience as technology entrepreneurs creating business from zero and scaling it in emerging and fast-growing industries.


As the easiest way to accept bitcoin, OpenNode offers a robust platform that consists of an easy to use eCommerce and retail plug-in solution, payment

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