■ Vader Hairitai
vader.hairitai@kellogg.northwestern.edu ■
All Work · 2023–2026
Currently activeLive on Base · 2026
OPickPrediction Markets · 2026

OPick is a live opinion market on Base mainnet. It auto-classifies 1.2M+ X posts a day through the Anthropic API and settles attention-index markets onchain, with no manual intervention.

Live on Base mainnet · ~60 days continuous · 6 settlement cycles

Case study →
Currently activeDeployed · 2026
SpandrelDeal Intelligence · 2026

Spandrel is an agentic deal-intelligence system for a US private-capital firm in the transferable tax credit market. It learns the firm's deal criteria from their own portfolio and scores new deals nightly with rationales the team can override.

~7 actionable deals surfaced per week · running daily in production

Case study →
Research · UIBE Beijing · 2023
Crude SignalEnergy Econ NLP · 2023

Crude Signal tests whether WSJ text carried crude oil signal that futures markets had not yet priced. An LDA topic model on 200K+ articles, built for the UIBE Beijing macro team.

Sharpe 0.07 to 0.45 · forecast error down 18% (out-of-sample)

Case study →
Paper-traded · 2025-2026
Trading BotEvent-driven Research · 2026

An agentic trading bot that reads 18 RSS feeds in Chinese and English, runs causal-chain analysis through the Anthropic API, and paper-trades Kalshi event contracts on US economic indicators.

CPI move flagged ahead of the print · 8 of 12 signals correct (paper-traded, 4 months)

Case study →
Currently activeBuilt from scratch · Daily use · 2026
LarryPersonal AI · 2026

Larry is a personal AI assistant I built from scratch and use every day, running inside WhatsApp.

Built from scratch · used every day

Case study →
Design Portfolio
MiletusCritical Mineral Derivatives · 2026

Miletus is a protocol design for critical-mineral perpetual swaps, a market with no clean reference price.

Design only, not deployed · 3-source layered oracle

Case study →
■ 2026
Colophon ■