A double-blooded Husky means that the Husky’s parents both have pedigree certificates; and the pedigree certificate is equivalent to the dog’s household registration book, which can prove the breed of the dog. There are currently two types of pedigree certificates recognized internationally, namely those issued by FCI and ACK (these are the names of the two kennel associations).
Double-blooded Huskies generally refer to purebreds. Double-blooded Huskies, both parents are certified purebred Huskies.