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diff --git a/src/consensus/params.h b/src/consensus/params.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_CONSENSUS_CONSENSUS_PARAMS_H
+#define BITCOIN_CONSENSUS_CONSENSUS_PARAMS_H
+
+#include "arith_uint256.h"
+#include "uint256.h"
+
+namespace Consensus {
+/**
+ * Parameters that influence chain consensus.
+ */
+struct Params {
+    uint256 hashGenesisBlock;
+    int nSubsidyHalvingInterval;
+    /** Used to check majorities for block version upgrade */
+    int nMajorityEnforceBlockUpgrade;
+    int nMajorityRejectBlockOutdated;
+    int nMajorityWindow;
+    /** Proof of work parameters */
+    arith_uint256 powLimit;
+    bool fPowAllowMinDifficultyBlocks;
+    int64_t nPowTargetSpacing;
+    int64_t nPowTargetTimespan;
+    int64_t DifficultyAdjustmentInterval() const { return nPowTargetTimespan / nPowTargetSpacing; }
+};
+} // namespace Consensus
+
+#endif // BITCOIN_CONSENSUS_CONSENSUS_PARAMS_H