Photos show a giant QR code made by Donghe Agricultural Group on October 10, 2018 in Harbin, Heilongjiang Province of China. Donghe Agricultural Group made the 30 meter by 30 metre QR code with five tons of black rice and five tons of white rice in Harbin on Wednesday, setting a new Guinness World Record for the world's largest QR code made of grains. [Photo: VCG]"

Photos show a giant QR code made by Donghe Agricultural Group on October 10, 2018 in Harbin, Heilongjiang Province of China. Donghe Agricultural Group made the 30 meter by 30 metre QR code with five tons of black rice and five tons of white rice in Harbin on Wednesday, setting a new Guinness World Record for the world's largest QR code made of grains. [Photo: VCG]"

Photos show a giant QR code made by Donghe Agricultural Group on October 10, 2018 in Harbin, Heilongjiang Province of China. Donghe Agricultural Group made the 30 meter by 30 metre QR code with five tons of black rice and five tons of white rice in Harbin on Wednesday, setting a new Guinness World Record for the world's largest QR code made of grains. [Photo: VCG]"

Photos show a giant QR code made by Donghe Agricultural Group on October 10, 2018 in Harbin, Heilongjiang Province of China. Donghe Agricultural Group made the 30 meter by 30 metre QR code with five tons of black rice and five tons of white rice in Harbin on Wednesday, setting a new Guinness World Record for the world's largest QR code made of grains. [Photo: VCG]"