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// Copyright (c) 2009-2010 Satoshi Nakamoto
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// Copyright (c) 2009-2014 The Bitcoin Core developers
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// Distributed under the MIT software license, see the accompanying
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// file COPYING or http://www.opensource.org/licenses/mit-license.php.
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#ifndef BITCOIN_POW_H
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#define BITCOIN_POW_H
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#include <stdint.h>
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class CBlockHeader;
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class CBlockIndex;
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class uint256;
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class arith_uint256;
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unsigned int GetNextWorkRequired(const CBlockIndex* pindexLast, const CBlockHeader *pblock);
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/** Check whether a block hash satisfies the proof-of-work requirement specified by nBits */
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bool CheckProofOfWork(uint256 hash, unsigned int nBits);
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arith_uint256 GetBlockProof(const CBlockIndex& block);
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#endif // BITCOIN_POW_H
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