The chip number will be displayed in the card reader and then compared with the certificate. If the two are consistent, log in to the relevant certification body online and enter the chip number you just got. If the chip number is correct, it will display your dog's information. Incorrect, naturally false.
Now internationally recognized dogs all over the world will have a practice, that is, take the puppy to an internationally recognized dog club to check whether it is a purebred dog, and then issue it with a purebred dog certificate.
Dogs breed to the fourth generation, and each generation of dogs is a purebred dog recognized by the dog club (which must be an internationally recognized dog club). From the fourth generation of dogs, dogs will issue internationally recognized pedigree certificates, but I must also be a member of the dog club.
Extended data:
The genealogy book is one of the important bases to examine whether a dog has reproductive value and how valuable it is. Moreover, genealogy books should also have relevant genetic and medical identification materials, such as HD (hip joint), ED (elbow joint), CERF (ophthalmology) and so on. This is the basis of genetic problems in future generations. ?
Furthermore, it can reflect the breeding methods adopted by breeders, such as inbreeding, strain selection or outcrossing, which is very important. Judging from the homonym in genealogy books.
A genealogy book does not represent whether a dog is excellent or not, but a genealogical record. ?
Baidu encyclopedia-genealogy book