Blocky Attestation Service

The Blocky Attestation Service gives you access to verifiable serverless computing. You can use it to create TEE attestations over function calls. You can verify these attestations locally or on chain in a smart contract.

On this page we give a quick overview of the Blocky Attestation Service functionality. To learn more about the service, dive into the links on the left, or into our examples repository, where we cover:

• Hello World - Attesting a Function Call
• Hello World - Bringing A Blocky AS Function Call Attestation On Chain
• Getting Coin Prices From CoinGecko
• Getting Esports Data From PandaScore
• Attesting A Time-Weighted Average Price
• Bringing An Attestation Of Time-Weighed Average Price On Chain

Attesting WASM Function Calls

The Attestation Service CLI supports the attest-fn-call command which allows you to send WebAssembly (WASM) functions for execution on a TEE in a serverless compute model. Use the attest-fn-call command to execute resource-intensive tasks over API data to accelerate your smart contracts and lower your gas costs.

At a high level, a User invokes the attest-fn-call command and sends a compiled WASM Function and an Encrypted Environment, containing function parameters, to the Attestation Service running on a TEE. The Attestation Service decrypts the Environment, starts a WASM Runtime, and invokes the user Function with the decrypted parameters. As a part of its execution, the function may also make requests to external web2 APIs. Finally, the Attestation Service returns a TEE Attestation over the WASM function execution and its results to the User.

To learn more the about the attest-fn-call command, explore its documentation.

Blocky Chain Integrations

The Blocky Chain Integrations allow you to bring the Attestation Service TEE attestations onchain and trustlessly verify them in your smart contracts. Use Chain Integrations to bring the power of TEEs into your dApp or ecosystem to unlock developer creativity.

At a high level, the User invokes the Blocky Attestation Service and obtains a TEE Attestation. The User calls a Smart Contract with the serialized Attestation as a parameter. Finally, the Smart Contract verifies the Attestation and makes use of the attested data.

To learn more the about bringing attestations on chain, explore Bringing Attestations On Chain.