My name is John Smith and my SSN is 482-39-1850
My name is [PERSON_1] and my SSN is [SSN_1]
Your data never reaches the model. Every interaction is cryptographically proven and recorded on-chain.
Live Demo
Your real data stays in your browser. The AI model only ever sees cryptographic tokens. Not policy — math.
The Problem
Trust that they won't store your data. Trust that they won't train on it. Trust their privacy policy. We eliminated trust entirely.
"We promise not to misuse your data." Your prompts still hit their servers in plaintext. You just have to trust them.
"We don't store anything." The GPU node still sees your full prompt. Privacy by policy, not by design.
Your data never leaves your browser unprotected. Mathematical proof that zero data leaked. Verified on-chain.
How It Works
You type normally. Your browser does the rest.
Before anything leaves your device, your browser replaces every name, email, SSN, and address with anonymous tokens. The AI never sees your real data.
Your browser generates a cryptographic proof — think of it as a tamper-proof receipt — confirming that every piece of personal data was protected. No human reviews it. The math is automatic.
That proof is permanently recorded on a public blockchain. Anyone can verify it. Not our servers, not a PDF — an immutable record that can never be edited or deleted.
Browser-side named entity recognition replaces all PII with anonymous tokens
Zero-knowledge proof confirms tokenization completeness without revealing data
Homomorphic commitments prevent post-creation tampering
Your browser holds a key share — nodes cannot reconstruct data without you
Independent nodes sign the interaction with no single point of trust
Epoch roots posted to Base L2 hourly — immutable and publicly verifiable
Why It Matters
Your browser replaces personal information with anonymous tokens before anything leaves your device. The AI model literally cannot see who you are.
Your browser holds part of the encryption key. Our servers cannot reconstruct your data without your browser's participation — by design, not by policy.
Proof that your data was protected is written to a public blockchain. Anyone can verify it. No trust required — just check the record.
Competitive Landscape
We checked every major private AI project. February 2026.
| Project | Your Data Never Leaves | Math Proof | You Hold the Key | Hardware Enclave | On-Chain Proof | Grade |
|---|---|---|---|---|---|---|
| PrivateGPTYOU | A+ | |||||
| Venice AI | F | |||||
| Nillion | D | |||||
| Phala Network | D | |||||
| Secret Network | D | |||||
| ChatGPT | F |
PrivateGPT is the only AI where your data mathematically cannot reach the model.
Everyone else asks you to trust them. We give you proof.
Why isn't a Hardware Enclave (TEE) enough? TEE-based solutions trust that Intel/AMD hardware is unbreakable. That's hardware trust, not math proof. If the chip has a vulnerability, your data is exposed. PrivateGPT uses mathematical proofs that hold regardless of hardware — your data never reaches the model in any form.
On-Chain
Three contracts live on testnet. Source code is public. Verify everything.
Token Economy
The utility token powering the attestation network. Stake to participate, earn for honest attestation, get slashed for misbehavior.
Lock $ARC to register as an attestation node. Min 10,000 $ARC.
Sign every AI interaction. VSS commitments published on-chain.
18% APY for honest operators. Slashing for misbehavior.
Node Operators
Attestation node operators stake $ARC to participate in the privacy verification network. Honest operators earn 18% annual rewards. Dishonest ones get slashed.
Lock a minimum of 10,000 $ARC to register as an attestation node operator on the network.
Your node co-signs every AI interaction using Feldman VSS. Users always hold a key share — nodes alone can never reconstruct data.
Honest attestation earns 18% APY via Synthetix-style distribution. Dishonest behavior triggers automatic slashing.
Use GPT-4o, Claude, or any frontier model — with mathematical proof that your data never left your device.