Verbs as NFTs

One of my most memorable/educational meetups was one by Philly.rb on audit logging. Audit logs record the occurrence of an event, the time at which it occurred, and any other useful data. The insight I remember from that talk was that audit logs are generated by creating a record for every change event in a new table. For example, your project may have a model User and a model ChangeOperation (usually generated by some library) and every time any data on the user model is changed, a new ChangeOperation instance is created and persisted in the database. You can later view all the ChangeOperation s the User model has gone through.

I am at EthDenver this week and it’s been great. There are some really interesting new projects using NFTs in a number of new ways. A typical NFT is such a simple idea that it is very amenable to representing different properties of a product. The Lens Protocol is one such interesting project that wants to represent social graphs on the blockchain. Like a few other social-network-on-the-chain projects, Lens uses NFTs to represent user identities.

Where Lens does something interesting though is representing verbs like “following” as an NFT. From their documentation:

Profile NFTs contain a FollowModule. This module contains the logic that allows different accounts to be issued Follow NFTs to record their relationship to the main profile on-chain.

Extracting the follow action to its own smart contract is an interesting move and allows you to create all sorts of various kinds of follows like “create a follow NFT only if the user has this other NFT” or “create a follow NFT if they pay a certain amount” (basically premium follows).

Definitely an interesting idea and something I need to dive into a bit more.

Author: Arpit Mathur

Arpit Mathur is a Principal Engineer at Comcast Labs where he is currently working on a variety of topics including Machine Learning, Affective Computing, and Blockchain applications. Arpit has also worked extensively on Android and iOS applications, Virtual Reality apps as well as with web technologies like JavaScript, HTML and Ruby on Rails. He also spent a couple of years in the User Experience team as a Creative Technologist.

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