Your AI made a decision. Can you prove it?

NexArt is verifiable AI execution infrastructure. Every run produces a Certified Execution Record that binds inputs, outputs, and context into tamper-evident proof. Verifiable by anyone, independently.

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Execution → Record → Proof

1. Execute — Your AI runs. Inputs, outputs, and context are captured.
2. Seal — SHA-256 binds everything into a tamper-evident CER.
3. Verify — Anyone confirms independently. No account needed.

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Logs describe. They do not prove.

Logs can be edited, deleted, or fabricated after the fact. Inputs and outputs are rarely bound together. When something goes wrong, there is no verifiable link between what was requested and what was returned. Without execution-level evidence, trust depends entirely on the operator.

Verifiable execution evidence for every AI workflow

Every execution produces a Certified Execution Record (CER) that binds inputs, parameters, and outputs into a single tamper-evident artifact. Independent attestation nodes verify integrity and issue signed receipts. Recompute the hash. Check the signature. No API key, no account, no dependency on NexArt.

Choose your path

• Builders — Integrate verifiable execution into your AI stack. Free tier, SDK, CLI, and full API access.
• Compliance & Risk — Audit-grade execution evidence aligned with ISO 42001, SOC 2, NIST AI RMF, and the EU AI Act.
• Enterprise & Regulated Workflows — Private attestation nodes, SLAs, retention policies, and architecture walkthroughs.

How It Works

1. Capture — Inputs, outputs, and execution context recorded at runtime.
2. Seal — SHA-256 hash binds all protected fields into a tamper-evident record.
3. Attest — Independent node signs the record with an Ed25519 receipt.
4. Verify — Anyone recomputes the hash and confirms independently. No account needed.

Use Cases

• AI agents & tool-calling workflows — Verifiable decision trails for autonomous tool calls, chain-of-thought workflows, and multi-step pipelines.
• Approvals & policy enforcement — Prove that a decision followed the right inputs, parameters, and policy constraints — with cryptographic evidence.
• Compliance & audit readiness — Audit-grade execution records for regulated industries. Reproducible, independently verifiable, retention-ready.

Go deeper

• What are Certified Execution Records
• AI execution integrity specification
• Security architecture

From the blog

• How to Add Verifiable Execution to an AI Agent in Under 30 Minutes
• Why We Built verify.nexart.io

View all articles

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