8 lines
276 B
Solidity
8 lines
276 B
Solidity
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// SPDX-License-Identifier: MIT
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pragma solidity >=0.5.0 <0.7.0;
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interface IBlockRelay {
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function getLast() external view returns (uint256);
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function getHash(uint256 /*blockNum*/) external view returns (bytes32);
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function historySize() external view returns (uint256);
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}
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