using namespace json_spirit;
using namespace std;
-extern void TxToJSON(const CTransaction& tx, const uint256 hashBlock, json_spirit::Object& entry);
+extern void TxToJSON(const CTransaction& tx, const uint256& hashBlock, json_spirit::Object& entry);
extern enum Checkpoints::CPMode CheckpointsMode;
double GetDifficulty(const CBlockIndex* blockindex)