4

As per Bitcoin documentation, new coins are generated and brought into circulation when miner receive the reward. I am not talking about existing coins that are collected at the time of mining.

Can somebody guide me, where exactly this generation of new coins takes place?

4

You are looking for the method CAmount GetBlockSubsidy(int nHeight, const Consensus::Params& consensusParams) in validation.cpp.

CAmount GetBlockSubsidy(int nHeight, const Consensus::Params& consensusParams)
{
    int halvings = nHeight / consensusParams.nSubsidyHalvingInterval;
    // Force block reward to zero when right shift is undefined.
    if (halvings >= 64)
        return 0;

    CAmount nSubsidy = 50 * COIN;
    // Subsidy is cut in half every 210,000 blocks which will occur approximately every 4 years.
    nSubsidy >>= halvings;
    return nSubsidy;
}

The variables in this code snippet stand for:

  • nHeight is the number of blocks that have been found.
  • consensusParams.nSubsidyHalvingInterval is 210000 blocks, the duration of reward epochs and the interval between the halvings
  • COIN is 108, the number of satoshis in one bitcoin
  • nSubsidy finally gives the number of satoshis that may be generated per block
0

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