Fixes incorrect block reward calculation for Alexandria upgrade

node_util/block_reward.go

@@ -21,7 +21,8 @@ func CalculateBlockReward(minerCount int64, blockHeight int) float64 {
 	if Env.Upgrades.Alexandria > blockHeight {
 		reward = math.Pow(p, float64(minerCount))
 	} else {
-		reward = math.Pow(p, float64(minerCount)) * float64(10000*(blockHeight%31536000)) // Block reward multiplies by a constant (10000) every year. This will prevent a limited supply.
+		years := (blockHeight - Env.Upgrades.Alexandria) / 31536000
+		reward = math.Pow(p, float64(minerCount)) * float64(10000*int(years)) // Block reward multiplies by a constant (10000) every year. This will prevent a limited supply.
 	}
 	return reward
 }