A cryptographic utility providing verifiable Ed25519 proofs for any computation using AWS Nitro Enclave technology.
Install & Download
1. ClawHub CLI
The fastest way to install a skill directly from the registry.
npx clawhub@latest install prethereum
2. Manual Installation
Copy the skill folder to one of these locations
~/.openclaw/skills/ <project>/skills/ Priority: Workspace > Local > Bundled
3. Prompt Installation
Copy this prompt to OpenClaw to install it automatically.
Help me install prethereum using Clawhub. If Clawhub is not installed, install it first (npm i -g clawhub).
Prefer to download?
Get the raw skill files in a ZIP archive.
What is Prethereum?
Prethereum is a sophisticated security tool designed to provide verifiable proofs for arbitrary computations. By utilizing Ed25519 signatures over SHA-256 digests, it creates a tamper-proof record of data states. This tool is especially powerful for users of Openclaw Skills who require high-assurance proof that specific data was processed by a secure, hardware-isolated Trusted Execution Environment (TEE).
The core value of Prethereum lies in its security model: the notary service runs inside an AWS Nitro Enclave, ensuring that signing keys are never exposed and no data is persisted. This architecture allows developers to build trust into AI-driven workflows, providing a verifiable bridge between agentic actions and cryptographic certainty.
Prethereum Use Cases
- Generating verifiable audit trails for data processed by AI agents.
- Securing automated workflows within Openclaw Skills by adding cryptographic signatures to outputs.
- Implementing offline verification for sensitive data transformations.
- Establishing hardware-backed identity and integrity for distributed system communications.
How Prethereum Works
- The client prepares a payload of bytes that requires a verifiable proof.
- In the Commit phase, these bytes are sent via HTTPS to a Notary running within an AWS Nitro Enclave.
- The Enclave computes a SHA-256 digest and signs it with a hardware-isolated Ed25519 key.
- The Notary returns a self-contained JSON proof to the client.
- The client can subsequently perform offline verification of the proof against the original bytes using the Prethereum library.
Prethereum Setup
To start using this tool with your Openclaw Skills setup, install the core package:
npm install prethereum
For AI agent integration via the Model Context Protocol (MCP), install the server globally:
npm install -g @prethereum/[email protected]
You may optionally configure the OCC_NOTARY_URL environment variable to point to a specific enclave endpoint.
Prethereum Data Schema & Taxonomy
Prethereum utilizes a self-contained JSON wire format for its proofs. It prioritizes privacy by ensuring no data persistence on the notary side.
| Component | Type | Description |
|---|---|---|
| Bytes | Input | User-provided data to be signed |
| Digest | SHA-256 | The cryptographic hash of the input bytes |
| Signature | Ed25519 | The TEE-generated signature over the digest |
| Proof | JSON | The final package containing the signature and necessary metadata for offline verification |
Prethereum Advanced Features
- AWS Nitro Enclaves native adapter for enterprise-grade hardware security.
- Full MCP server support, enabling Claude and other agents to commit and verify proofs autonomously.
- Comprehensive Adapter Kit for building custom TEE implementations and ensuring protocol compliance.
- Local-first verification engine that requires zero network access for proof validation.
SKILL.md
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