How Much Is a Cryptotini Worth?

All photos of the event were done by  Nathaniel Jensen Photos .

All photos of the event were done by Nathaniel Jensen Photos.

One of the biggest knocks against blockchain and crypto is how unapproachable it is to those not entrenched in the space. How do you explain public/private keys? What's a smart contract? What are tokens? How much is it worth? What even is a blockchain? It's a never ending black hole of one definition leading to another definition leading to another that leaves people more confused than when they started.

We set out to change that by showing, not telling, people in Omaha what the future of decentralization and blockchain was going to be about. How? We built a token and partnered with the NEXT Society, a speakeasy series dedicated to highlighting new technology, for an event to educate around blockchains, tokens, and smart contracts. This post will dive into the creation of our ERC20 NEXT token, how we on-boarded attendees with their own wallets, and the event experience of earning tokens throughout the night.

Attendees learning from Will Payne at his "smart contract" station.

Attendees learning from Will Payne at his "smart contract" station.


The premise of the night was to get attendees to learn from local blockchain and crypto experts about various subjects at "smart contract" stations and be rewarded with tokens for doing so. To accomplish this, we built an ERC20 token called the NEXT token with a pre-mined supply of 10,000 tokens. This token, worth $0, allowed experts at stations to send tokens to attendees throughout the night. This was built to illustrate how tokens and smart contracts worked in an analog, physical way.

Again, this was an event filled with first timers. This meant that before we could send tokens to everyone, we would have to set them up with a wallet. Unfortunately, crypto on-boarding is a nightmare. This is especially true when you need to get 60+ attendees setup with a wallet within minutes of walking in.

The Trust Wallet app used for the event.

The Trust Wallet app used for the event.

To begin on-boarding, we needed an Ethereum wallet app. We chose to go with the Trust Wallet app as it was the only one we could find that accepted ERC20 tokens while having QR scanning capabilities for both iOS and Android. As a pre-event requirement, we sent out emails asking all attendees to have the Trust app downloaded to their phone before showing up.

Cow tags given to attendees for their user identity and wallet.

Cow tags given to attendees for their user identity and wallet.


Once in the event, we provided cow tags (it is The Beef State after all) with a QR code and an identity. Every cow tag had an identity represented as a color, animal, and then a QR code that was printed on it that the attendees could use to track token transactions amongst the event. As an example, one attendee's identity might be a green monkey while another could be a red cow.

The Startup Collaborative - NEXT Event - Nathaniel Jensen Photography-10 (1).jpg
The Startup Collaborative - NEXT Event - Nathaniel Jensen Photography-58.jpg

Token Economy

Once the attendees were fully on-boarded, they were then ready to start going to any of the 5 "smart contract" stations to learn about a blockchain or crypto topic. This would involve spending a few minutes interacting with experts and learning more about various topics. After engaging with the station, the expert would send 1 token to the attendee for spending their time learning. This token transaction was accomplished utilizing the Trust app's QR scanner and scanning the attendee's public key on their phone.

Anyone was able to watch as tokens were traded amongst the stations, attendees, and bars.

Anyone was able to watch as tokens were traded amongst the stations, attendees, and bars.

Token transactions in and of themselves are kinda cool but the attendees needed more to fully experience blockchain. To do so, we provided a user interface that was pulling live token data from our smart contract system and projected it on screen for attendees to watch. As a station sent a token to an attendee's address, the attendee could look for their identity on the screen and watch it come through. This screen allowed everyone at the event to see tokens transferring around them in real-time.

How much is a cryptotini worth? 2 tokens obviously.

How much is a cryptotini worth? 2 tokens obviously.


As the attendees received tokens for listening to the stations, they could then use them to purchase drinks (Cryptotinis!) at the bar. Each drink would require two tokens to purchase. With two tokens in their wallet, the attendees could go to the bar and send their tokens to the bar point-of-sale system by scanning the bar's QR code public address.

The Bar point of sale system.

The Bar point of sale system.

The bartenders, just like the rest of the event, had a screen that they could watch to see the tokens come through to the bar wallet. Essentially, we created a pos system for the bartenders which included a simple filter that only streamed token transactions coming to the bar. Once the bartender could verify that 2 tokens came from the attendee's identity (Green Monkey sent 2 tokens to The Bar), they could serve the attendee their drink. If the attendee wanted another drink, they would need to go to a couple more stations.

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Overall, we believe it was a good first event showcasing the basics of blockchain technology, smart contracts, and the concept of cryptoeconomics. However, it was important that we spent time prepping attendees for various difficulties from the infancy of the technology.

One of those difficulties involved transaction confirmation times. On average, transactions were taking 1 to 2 minutes to go through. We expected this problem and felt that transaction speed was part of the story that needed to be told about public blockchain technology and Ethereum specifically. We compared it to dial-up speeds of the earlier internet and used it to show how far the technology still needed to come before mainstream adoption.

Trust Wallet

Our other difficulties were with the Trust Wallet. As a note, we would recommend Trust overall because of its feature set and UI/UX design. But, there were still some issues that caused friction for the attendees. First, Trust doesn't allow users to choose gas prices to send transactions through quicker. Makes sense from an ease of use perspective but really limits flexibility. Second, Trust had just completed an update of their app that broke the QR scanner for iOS. This forced the attendees to use their iOS camera, copy the address, and then paste it to import the wallet and send tokens for the rest of the night. Again, Trust is a great app but still has room to grow.

What would we Change?

If we were to do it again, we would definitely have the attendees generate their own wallet so we don't have such a security problem associated with the system. We would then have the attendees attach their identity to their wallet. In an optimal system, we would use something like uPort or a custom built solution to handle identity. Finally, to handle the issue around attendees not having ether to exchange tokens, we would have a faucet onsite for people to receive gas.

If anyone is interested in using this system internally at their enterprise to teach blockchain or at events, please email us at

Special thanks to Erica Wassinger and Nathan Preheim from The Startup Collaborative for putting on the NEXT Society and letting us test this system out!

Kyle Tut