Example GTIN with valid check-digit: 00666522900091
You sent us an image without/0 as check-digit, simply request your image as: https://han.brickinc.net/gtin/00666522900090.jpg
Since it's a national product, pass in a valid check-digit to get Brick's image: https://han.brickinc.net/gtin/00666522900091.jpg
NOTE The free API will watermark your image and has a limit of 10 requests per minute, with a burst of 5 requests.