pow.h
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pow.h
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	// Copyright (c) 2009-2010 Satoshi Nakamoto
	// Copyright (c) 2009-2014 The Bitcoin Core developers
	// Distributed under the MIT software license, see the accompanying
	// file COPYING or http://www.opensource.org/licenses/mit-license.php.

	#ifndef BITCOIN_POW_H
	#define BITCOIN_POW_H

	#include <stdint.h>

	class CBlockHeader;
	class CBlockIndex;
	class uint256;
	class arith_uint256;

	unsigned int GetNextWorkRequired(const CBlockIndex* pindexLast, const CBlockHeader *pblock);

	/** Check whether a block hash satisfies the proof-of-work requirement specified by nBits */
	bool CheckProofOfWork(uint256 hash, unsigned int nBits);
	arith_uint256 GetBlockProof(const CBlockIndex& block);

	#endif // BITCOIN_POW_H