Introduction

AgentSystems Notary provides independent verification of your AI system’s behavior. When buyers ask “how do we trust your AI logs?”, you have an answer.

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How It Works

1. Record - The SDK captures LLM interactions as they happen
2. Dual-Write - Raw logs go to your S3 bucket. SHA-256 hashes go to your chosen storage.
3. Verify - Anyone with an audit ticket can verify logs

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Hash Storage Options

Notary supports two hash storage methods. You can use one or both. Arweave provides decentralized, permanent storage on a public blockchain. Verification requires no AgentSystems infrastructure — anyone can verify using the open-source agentsystems-verify CLI. No vendor lock-in. Custodied is a managed option if you prefer AgentSystems to handle the complexity. Verify through our portal.

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Components

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Key Concepts

Tenants represent your customers. They’re auto-discovered when the SDK logs its first interaction with a given slug. You don’t need to create them in advance. Audit Tickets are signed tokens that grant access to verify logs for a specific tenant and date range. They don’t contain the hashes themselves — they authorize the verification portal to check logs against AgentSystems records. Attestation Packets are self-contained proof bundles you can share with customers, compliance teams, or regulators. They contain the logs, audit ticket, a signed attestation certificate, and instructions for independent signature verification — everything needed to confirm the logs were checked against AgentSystems records.