// Shortcut checks for almost all early blocks
    if(chainActive.Height() < SKIP_VALIDATION_HEIGHT)
    {
        const CChainParams& chainParams = Params();
        // hit all the checkpoints but skip most of the rest
        std::map::iterator cpItr = chainParams.checkpoints().MapCheckpoints.find(block.GetHeight());
        // if the current block is not found in the checkpoints list, skip it
        if(cpItr == chainParams.checkpoints().MapCheckpoints.end())
        {
            return true;
        }
    }