Vext Labs, Inc. · An AI research lab

We’re growing a mind that doesn’t forget — and proving what it did.

Every claim about an AI system should be checkable by someone who doesn’t trust the people who made it. We build that standard into everything we ship — starting with a receipt for every action, verifiable offline, against a verifier we don’t control.

The research
JUWEL Receiptverified
actionaudit · mercy general bill
caught$1,240 in errors
agentCass · billing
ran onsubstrate on record
sig:9af1b5be7c20…d4 · ecdsa-p256 ✓ offline

This receipt is the lab’s standard, live. Don’t take our word — break it. One byte and the math fails.

How we work

If we can’t prove it, we don’t claim it. If we tested it, we publish it — including the failures.

Researchtwo programs

Ship the proof. Grow the mind.

STOA · verifiable receiptsshipping · open source

A receipt whose verifier isn’t the vendor.

Every action an agent takes is signed (ECDSA P-256) and hash-chained (SHA-256) into a receipt you check offline, with an open-source verifier. Flip one byte and verification fails. Neutrality is the property: the thing that checks the system is not part of the system.

now: receipts ship in JUWEL and JUWEL OS · verifier: npx @vextlabs/stoa-verifier
CIP · continual learningresearch · toy-scale

Toward memory that grows without forgetting.

The open experiment: a learner that adds capability without erasing what it had. Today it survives toy-scale curricula — arithmetic, not the real world. That test is still ahead of us, and we will publish the result either way.

now: toy-scale results hold · real-world curriculum test ahead · negative results get published too
Lab notespublished either way
note 07 · stoa Receipts, not logs: neutrality as a property read → An audit trail only counts if the verifier isn’t the vendor. How offline falsification changes the trust math — demonstrated on the JUWEL landing. note 06 · cip Forgetting curves on toy curricula read → What survived, what didn’t. Honest results from arithmetic-scale continual learning — including the failures. note 05 · systems Substrate-agnostic by design read → Our systems run on the substrate that fits the job; the receipt records what ran. No wrapper claims — just the record.
The product

JUWEL — the research, wearing a face.

Where both programs meet the real world: an AI that does whole jobs, signs every action, and hands the proof to you. Free to start; the verifier is free for everyone, forever.

Companysmall on purpose

An American lab, built around one rule.

Who we are Vext Labs, Inc. · est. 2026 An independent AI research lab. We publish what we test — the wins and the failures — and we ship the proof layer first.
What ships today The proof layer Signed, hash-chained receipts for every agent action, checked offline by an open-source verifier we don’t control. Live in JUWEL now.
What we’re growing The memory program Continual learning toward memory that grows without forgetting. Toy-scale results hold; the real-world test is ahead.
info@tryvext.com +1 844-904-0270 Researchers who like falsifiable claims: we read every note.