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Rex St. John
Jan 2025 — Jan 2026Founder

Verafy

An AI grounding and verification platform built on a simple premise — a single model's answer is an opinion, and the useful signal is what happens when several of them have to disagree in public.

Numbers

$17M
Launch capitalprimary
4,000+
Developer community
250+
Models comparedvia the Swarm Explorer
220,000 SOL
Delegated stakeon the validator, at its peak
6
Team built

Verafy started from an argument I kept having with myself. Every verification product I looked at was trying to produce the answer: one model, one score, one confident sentence. But the interesting information is almost never in the answer. It is in the disagreement — which models hedge, which ones flip when pressed, which ones hold a position that turns out to be right.

So the architecture went the other way. Put the question to a panel. Make them rule independently before they see each other. Keep the record of who said what, and score them over time on the questions where being wrong actually costs something.

TruthChain was the sharpest version of that idea and the one I shipped as a public demo: Community Notes, but for language models.

The company did not survive the crypto market turning. The idea did — most of what I have built since is a descendant of it.

Demo

What I built

  • TruthChain2025

    Community Notes for LLMs. A CLI that puts a question to a panel of models over several rounds and scores each one on how it answers contested questions, so a model that bends under pressure leaves a record. The long-term shape of it was an information anti-virus for spotting deceptive models.

  • Swarm Explorer

    Put a claim to a panel of models at once and watch where they split. Every verdict carries a confidence score and a per-model breakdown, so a 93% answer that four models disagree about looks different from a 93% they all agree on. Available as a hosted app, an API and an SDK.

  • Validator infrastructure

    A Solana validator run end to end — Ansible, shell automation and payment plumbing — reaching 220,000 SOL in delegated stake before the market turned.