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pcaversaccio/Merge.sol

Last active September 13, 2022 19:19
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This smart contract determines whether "The Merge" has already taken place or not.
Raw
Merge.sol
// SPDX-License-Identifier: WTFPL
pragma solidity 0.8.16;
contract Merge {
uint72 private constant _DIFFICULTY_THRESHOLD = 2**64;
/**
* @dev A difficulty value greater than `2**64` indicates that a transaction is
* being executed in a PoS block. Also note that the `DIFFICULTY` opcode (0x44)
* is renamed to `PREVRANDAO` post-merge.
*
* For further information, see here: https://eips.ethereum.org/EIPS/eip-4399.
*/
function merged() public view returns (bool) {
return block.difficulty > _DIFFICULTY_THRESHOLD;
}
}
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Official deployment address 0x17FEF0D05fFed818aF08AE00BeC06B65c4319618.

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