web3_sha3 | Optimism

Optimism API method web3_sha3 computes the Keccak-256 hash of the given data. This method is a utility function often used in Optimism for generating hashes of arbitrary data, which is a common requirement for various cryptographic operations.

This example computes Keccak-256 for the value Chainstack.

Chainstack in hex: 0x436861696E737461636B.

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Parameters

• data — the data to hash, typically provided as a hexadecimal string.

Response

• result — the Keccak-256 hash of the input data, returned as a hexadecimal string.

Use case

The web3_sha3 method is essential for:

• Generating identifiers or hashes for on-chain data storage or referencing.
• Creating cryptographic proofs that require a hash of data.
• Developers needing to perform off-chain hash calculations that match the Optimism network's hashing algorithm.

Try the web3_sha3 RPC method yourself