perathos
Built on the open VRL Protocol · Works with any LLM

AI That Answers
For Itself.

Perathos sits between your AI and your decisions. Every response is intercepted, examined across six parallel verification layers, and returned with a cryptographically signed verdict.

PASS

Response verified

All six verification layers agree. Output delivered with cryptographic proof.

FLAG

Review recommended

Anomalies detected. Response delivered but flagged for human review.

BLOCK

Response blocked

Mathematical error or confirmed hallucination. Output suppressed before delivery.

Zero vendor lock-in·Works with GPT-4, Claude, Gemini, Llama·Drop-in via base_url swap·VRL Proof Bundle — every verdict signed·Immutable audit trail

// the problem

Enterprise AI has a liability problem.

Models hallucinate with confidence. They fabricate citations, contradict compliance guidelines, and make mathematical errors — then deliver these outputs with the same certainty as correct ones.

Your compliance team acts on an incorrect regulatory summary. Your trading desk uses a hallucinated risk figure. Your clinical system surfaces a drug dosage from a fabricated guideline.

Your teams cannot tell the difference. Until it's too late.

unverified AI output

Query: "What is the Basel III capital ratio?"

Response:

"Under Basel III, banks are required to maintain a minimum Common Equity Tier 1 ratio of 6% of risk-weighted assets, as mandated by the EBA circular dated March 2019..."

⚠ Actual CET1 minimum: 4.5% · EBA circular: does not exist

Two hallucinations. Zero warnings. Delivered with certainty.

// the solution

Verification middleware. Not guardrails.

Guardrails filter content. Perathos verifies truth. We intercept every AI response and run it through six parallel verification layers. Every verdict is cryptographically signed and auditable.

01

Intercept

Your AI call is proxied through Perathos

02

Extract Claims

Factual, mathematical, and structured claims identified

03

Verify

6 layers run in parallel — milliseconds

04

Judge

Weighted verdict aggregated and signed

05

Deliver

Response + VRL proof bundle returned

// six layers, running in parallel

Every claim examined from every angle.

No single model can be trusted to verify itself. Perathos uses a panel of independent verifiers — LLM-based, deterministic, and hybrid.

⚖️LLM

Cross-Examiner

A second model asks: does this contradict established facts, prior statements, or domain knowledge? Contradiction = FAIL.

🔍LLM

Hallucination Detector

A fast model scans for fabricated specifics — invented citations, overconfident statistics, names or dates that don't exist.

🔁LLM

Independent Calculator

Every calculation is re-derived from scratch by a separate model, blind to the original answer. Outputs are compared.

Deterministic

Symbolic Solver

Mathematical claims are verified by SymPy — a symbolic algebra engine. 100% deterministic. A wrong equation is always BLOCK.

🗄️Deterministic

Knowledge Graph

Factual claims are looked up against a trusted knowledge base or your own domain database. Pluggable per industry.

📐Hybrid

Schema Validator

Structured output — JSON, tables, financial figures — is validated against schema. AI extracts claims; deterministic code verifies each one.

// integration

One line to integrate.

Point your existing SDK's base_url at Perathos. No new SDK to learn. No API changes. The response format is identical to your current provider — with verification fields added.

  • Works with OpenAI SDK, Anthropic SDK, any OpenAI-compatible client
  • PASS responses include a VRL proof bundle for audit
  • BLOCK responses include a signed explanation
  • Configurable thresholds and per-request overrides via headers
integration.py
# Before: direct to provider
client = openai.OpenAI(
  base_url="https://api.openai.com"
)

# After: verified by Perathos
client = openai.OpenAI(
  base_url="https://api.perathos.com/judge" # ← only change
)

response = client.chat.completions.create(...)

# Verdict and proof bundle in every response
print(response.vrl_verdict)  # PASS | FLAG | BLOCK
print(response.vrl_bundle)   # Full audit trail

// open foundation

Built on the VRL Protocol.
Open source. Auditable.

Perathos is the enterprise product built on top of the open Verifiable Reality Layer (VRL) Protocol — a cryptographic standard for AI output verification. Every verdict is wrapped in a VRL Proof Bundle: an immutable, signed artifact that proves what was verified, when, and by which circuit.

View VRL Protocol on GitHub →
🔐

ZK Proof Bundles

Every verdict cryptographically signed

🛡️

TEE Attestation

Intel TDX & AMD SEV-SNP support

⛓️

Audit Chain

Append-only, tamper-evident log

🔌

Open Protocol

Apache 2.0 · No vendor lock-in

Enterprise AI.
Without the liability.

Deploy AI that can prove every claim. See Perathos in your environment with a live proof of concept tailored to your use case.