code: func MinimumMedianTime(chainState *blockchain.BestState) time.Time {
  	return chainState.MedianTime.Add(time.Second)
  }
docs: // MinimumMedianTime returns the minimum allowed timestamp for a block building
  // on the end of the provided best chain.  In particular, it is one second after
  // the median timestamp of the last several blocks per the chain consensus
  // rules.