This section looks short and carries unusual weight, so its detail standard is exactness rather than length. A first-time sitter who needs the chip number will need it suddenly — at a vet's front desk, or on the phone to a registry, with a frightened cat in a carrier. In that moment, nearly right is useless. The number itself, digit for digit, and the registry's name in full are what belong on the page, taken from the cat's own record rather than from anyone's memory of it.
Why the Number Itself Belongs in Writing
Owners sometimes hesitate here, writing that the cat is chipped and leaving it at that. That sentence tells a sitter nothing they can use. The working detail is the number itself and the registry's name exactly as they appear in the cat's record, because those two facts are the keys another person turns. A vet quoting the number can pull the right record; a registry given its own name and the number can reach the contact details filed against it. Copy both carefully when you write the section, reading them off the record itself — a vaccination card, a registration letter, or your existing file — and then read them back once, the way you would read back a phone number, because a single transposed digit points at somebody else's animal or at nothing at all.
How a Chip Actually Works
Give the sitter one short, accurate picture of the mechanics, because it shapes what they do next. The chip itself holds no address and no phone number; a scanner passed over the cat reads out the number, and that is all the scan yields. The registry holds the contact record — the names and numbers the chip points to — which is why the registry's name matters as much as the number. A sitter who understands that split will not waste time asking a vet to print your address from the chip, and will know that the follow-up call, armed with the number, goes to the registry. Keep this to a few plain lines; the sitter needs working clarity, not a lecture, and this belongs in the Pet Passport on KinsLe beside the vet contacts.
Private on Paper, Never Public
Say the distinction plainly inside the section, because it is the reason the number can be written down at all: these written instructions are a private document for the sitter. The chip number is never published publicly — it does not go on social posts, lost-cat flyers, or group messages — because in public hands it points strangers toward your contact record. In the sitter's hands, inside a document that stays in your house and comes back to you, it is exactly where it should be. Naming that boundary also guides the sitter's own behavior: they may quote the number to a vet or to the registry when the situation calls for it, and they share it with nobody else, in no photograph of the instructions, at no point during the sit.
Check the Record Before You Travel
The section earns its keep only if the record behind the number is current, so the last job before a trip is a check. Contact the registry, or read the record back through the route your registration provides, and confirm the names and numbers filed against the chip are the ones that would reach you today — a phone number retired two moves ago is the classic silent failure. Confirm the number on your written section matches the record while you are at it. If anything has changed, update the registry first and the sitter's page second, so the two never disagree. A sitter handed a verified page can act in the first phone call instead of the fourth, and that difference is the whole point of writing this section properly.
File the verified chip details under KinsLe's Pet Passport heading and close the packet knowing the sitter can quote them accurately under pressure.