Yes The bottle bottom of Maotai Black Gold 5L should have a circular logo engraved with the words "Kweichow Moutai Distillery Co., Ltd." and an independent 1 1 security code. In addition, there should be a seal on the bottle cap with the words "Maotai" printed on it and an anti-counterfeiting mark to ensure the authenticity and anti-counterfeiting of the product. If the bottom of the black gold 5L bottle of Moutai does not have these signs, there may be a risk of counterfeiting.