Gitcoin Blog

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Austin Thomas Griffith

How to host a Burner Wallet event

Decentralized pop-up economies are on the rise


We’ve proven that the Burner wallet works well at small events like the Cypherpunk Speakeasy: Participants receive a paper wallet with a private key on the inside. After scanning it with their phone’s camera they have a wallet loaded with tokens. No app download. No seed phrases. They scan another QR code at the bar to buy a beer. Chug. Rad. 

But, how does this scale? Can we run this same UX for 2000 people?

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Burner Wallet at ETHDenver was 🔥

The biggest pop-up economy powered by crypto in history!

Image from   Rich@Maker

Burner Wallet TL;DR

The Burner wallet works in your mobile web browser like Safari so no app download and no seed phrase. It runs on the xDai network so transactions always completed within five seconds, you can do hundreds of them for a penny, and it’s pegged to the dollar so there is low cognitive overhead. The best part is onboarding is as easy as opening your camera.

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Commit Reveal Scheme on Ethereum

Hiding Actions and Generating Random Numbers

The Ethereum blockchain is public.

Since all transactions are public we have to use extra tricks to keep some things temporarily hidden. Let’s say we need input like an answer to a quiz or a move in a game from a group of players. We don’t want these players to be able to just watch the blockchain for their competitors’ answers. What we’ll do is have everyone hash their answer and submit that first (the commit). Next, everyone will submit their real answer (the reveal) and we can prove on-chain that it hashes to the committed value.

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Native Meta Transactions

Hiding Actions and Generating Random Numbers

The Ethereum blockchain is public.

Since all transactions are public we have to use extra tricks to keep some things temporarily hidden. Let’s say we need input like an answer to a quiz or a move in a game from a group of players. We don’t want these players to be able to just watch the blockchain for their competitors’ answers. What we’ll do is have everyone hash their answer and submit that first (the commit). Next, everyone will submit their real answer (the reveal) and we can prove on-chain that it hashes to the committed value.

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Joining Gitcoin As Director Of Research

Pushing Seamless UX Forward With Meta Transactions

I’m extremely honored to announce that I will be joining the Gitcoin team full time as their Director of Research. My tasks will include continuing to #BUIDL and #SHIPL in the meta transaction space with an emphasis on seamless onboarding into Ethereum and assisting with some special projects that are yet to be announced. Hanging out with the team at ETHSanFrancisco really got me excited for the opportunity to work with such amazing hackers.

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