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JSON-RPC Reference

web3_sha3

Returns the Keccak-256 hash of the given hex-encoded data. Despite the name sha3, this returns Keccak-256 — the variant standardized into Ethereum — not the later NIST-standardized SHA3-256. Useful for computing function selectors, event topic hashes, EIP-191/EIP-712 personal-sign digests, and any other Keccak-256 dependent value.

⚡ Compute Units: 15 CU

Request

This endpoint expects an object.
datastringRequiredformat: "^0x[0-9a-fA-F]*$"

Data to hash, hex-encoded

Response

Keccak-256 hash of the input data, hex-encoded