// Portfolio

SUMail screenshot SUMail screenshot SUMail screenshot SUMail screenshot

SUMChain + SUMail

Co-designing a Rust Layer-1 blockchain with round-robin PoA/PoS validator rotation and protocol-level token standards. Built a TypeScript Chrome extension wallet with an in-memory PBKDF2 vault, a React/Vite web client, and a SwiftUI mobile wallet reading on-chain data directly from SUMChain. SUMail is the ecosystem's encrypted messaging layer.

SUMChain →   SUMail →   SUMailet extension →
SNIP diagram SNIP diagram SNIP diagram SNIP diagram

SNIP + OmniNode

Two protocols extending the SUMChain ecosystem: SNIP (Storage Node Interface Protocol) standardizes how storage providers plug into the network, and OmniNode is the federated execution layer that coordinates them.

SNIP site →   OmniNode site →   SNIP GitHub →   OmniNode GitHub →

hangg

Full-stack real-time social platform (React Native, Next.js, NestJS, PostgreSQL on GCP) with Firebase auth, signed-cookies via Cloud CDN, deep linking, and adaptive Socket.IO polling. Full launch in May 2026. Coming soon.

hangg.app →
GNN AML visualization GNN AML visualization GNN AML visualization

GNN for Ethereum AML Detection

Adapted IBM's Multi-GNN from edge-level Bitcoin classification to node-level Ethereum sanctions detection via transfer learning under a 14,140:1 class imbalance. Identified placement / layering / integration laundering phases through SHAP attribution on 2-hop ego subgraphs, fed by a Rust pipeline aggregating 90M+ transactions into weekly Parquet graphs.

Training →   Viz →   Preprocessing →
QuoSUM Kiosk screenshot QuoSUM Kiosk screenshot QuoSUM Kiosk screenshot

QuoSUM Kiosk

Self-serve ordering kiosk for quick-service restaurants, built on the SUMChain payments stack. See the walkthrough video below.

Demo video →
WantSUM screenshot WantSUM screenshot WantSUM screenshot WantSUM screenshot WantSUM screenshot

WantSUM?

Decentralized, serverless iMessage coordination engine. An iMessage extension that turns a text thread into a live collaborative cart — friends browse restaurant menus together and build a shared group order without leaving Messages.

B+Tree SQL demo

B+Tree SQL Engine

From-scratch C++ relational engine: state-machine SQL parser, B+Tree index over binary storage, Shunting-Yard query pipeline supporting SELECT, INSERT, and conditional filtering.

GitHub →