Katharine Moon Vari / Portfolio
03.P2P Blockchain Project for Computer Networks

Python, Javascript, HTML/CSS
Spring 2025
Columbia University

Implemented a sample blockchain for Computer Networks at Columbia University to trade and track Pokémon.
Uses the TCP protocol and ensures that all peers can securely access and mine blocks using SHA256. 
Includes testing and handling for “malicious peers” to ensure that any attacks or incorrect forking is handled across all users. 
Designed a UI and simple database in Javascript and HTML/CSS. 

Link to Github