// SPDX-License-Identifier: Apache-2.0
pragma solidity ^0.8.4;

// Data verification methods hashes
bytes4 constant _KECCAK256_UTF8 = 0x6f357c6a;
bytes4 constant _KECCAK256_BYTES = 0x8019f9b1;
bytes4 constant _KECCAK256_ECDSA = 0xac75a10e;