Proofs of Interaction


Brand Designer


October 2022



Visual Design

Motion Design

Graphic Design




After Effects


Proofs of Interaction (POI) is a Proof of Attendance Protocol (POAP) but for physical items and locations. The goal of POI is to support a system in which a physical item or physical location can securely generate blockchain tokens representing the higher concept of the physical item / location. For example, a painting in a museum that generates blockchain tokens representing the act of viewing the real-work. Physical blockchain chips offer guarantees of proof of interaction. By leveraging the chips, the POI protocol can securely generate NFT tokens to exhibit that proof.

In POAP, an NFT is acquired through QR codes, links, or sent to the user. While this is a useful protocol, it has a few shortcomings around the tech and the community. One of the most notable shortcomings is the gatekeeper aspect of POAPs. The POAP smart-contract only allows the POAP organization to create events. This allows for the possibility that they may arbitrarily choose to reject certain POAP event creations. The tech relies on either a list of user addresses to send the POAP to, or QR codes to distribute the POAP physically. Focusing on the physical distribution of POAPs, the QR code requires a unique link for each code and infrastructure to support link generation. If the POAP is centered around a physical location or physical item, then it is not feasible to support this with the current system. A sheet of QR codes would have to be printed and each user would take one or there would need to be a digital system / terminal to generate QR codes on the spot for individuals. This in and of itself is impractical. POI aims to fix this.


Create the Official branding for Proofs of Interaction. Work with a team to strategize and brainstorm ideas for the protocol itself. Ultimately create an alternative solution to the Proof of Attendance protocol that is truly decentralized and solves its shortcomings.


A POI event is the conceptual representation of interaction with a blockchain chip. Scanning the chip will result in the redemption of a POI to a designated wallet on the blockchain, chosen by the user. Furthermore....

  • All tokens of an event have the same name, image, etc
  • Tokens can only be generated by interaction with the blockchain chip
  • POAP doesn’t track token order per event, just total token order - This is critical to the framework of the protocol. If we track the token per event, then it would be event => token => address mapping rather than event => token and token => address
  • An entity can create a POI event that generates tokens when users interact with the blockchain chip added to the event
  • Creating a POI event charges x native blockchain currency to the POI DAO and y native blockchain currency per token limit. IE. event cost = x + y*n where n is number of tokens for the event. This creates an automated gatekeeping system rather than having an entity determine what events can be created and creates a cost for each event that prevents spamming. 
  • The POI event owner can add one or more chip ids indicating the blockchain chip that can generate the tokens from a recent signature. The POI event owner must provide an external reference for the event id. For example, my app has eventID x in the POI contract and the device signs for eventID x. This is because there could be multiple events associated with a single blockchain chip

The Protocol


Each POI is unique to the redeemer. It represents your specific visit or interaction with a specific blockchain chip.

Your POIs are securely held in a wallet address on a blockchain, in this case the Ethereum blockchain. 

Value for The Consumer & Brands 

Blockchain technology can sometimes get a bad light for the actual innovation it brings to the table. However, when you combine that technology with something such as NFC chips in this case, it really comes together to create something special. 

POI provides value to Individuals who want to collect experiences by interacting with physical objects or locations and receiving additional benefits for doing so. 


  • A consumer could collect POIs from brewery locations showing the brewery tour they went on. 
  • A consumer could collect POIs from Picasso’s works in museums showing their interest in his works. 
  • A consumer could collect POIs at national parks showing the national parks they have visited.

Other benefits could be given by the brand or issuer:

  • Brands can issue POIs for marketing purposes, offer benefits to their loyal customers, and track activity of loyal customers.
  • Brands can build a community around POIs.
  • Brands can offer pre-sales to POI holders.
  • Brands can offer crowdsourcing of products to POI holders.

Full projects always on Desktop.