Every claim on this site rests on one thing: that the copy we kept of a recall notice is the copy we read on the day we say we read it. You have only our word for that. This page removes the need for our word.
Once a day we take the fingerprint of every notice we hold, put them in order by campaign number, and fold them together into a single number. That number is the seal for the day, and we publish it here the moment it is made. It is 64 characters long and it depends on every one of the notices behind it.
The seal cannot be quietly recomputed later. If we edited one word of one notice after the fact, its fingerprint would change, and the seal we had already published would no longer be reachable from it. The seal for a past day is a claim about that day, fixed on that day, in public.
The seals
4 September 2026 · 1,470 notices sealed
5bbe 3ba3 84f6 82a7 7c48 eaa7 9102 1035 1637 8da4 f273 b862 d951 b0d0 d116 3dab
3 September 2026 · 1,464 notices sealed
240a f4da 6b74 e4fb 7557 55b5 9e14 e349 ec64 c9de a643 2aa5 95fa 21d1 bc26 4dac
2 September 2026 · 1,462 notices sealed
50f7 575a b2bb e623 3b24 462a 003b a507 272a 8f8e 52ce 3368 9cbb 71be f468 bcb1
Checking one notice yourself
Ask the site for the audit path of any campaign we hold:
curl https://carsmultiverse.com/wp-json/cmvseal/v1/proof?campaign=25V101You get back the fingerprint of that notice, its position among the notices sealed that day, and a short list of sibling fingerprints. Fold them together in the order and on the side given, and you arrive at the seal we published. Eleven steps is typical, because folding halves the list each time: fourteen hundred notices are eleven foldings from the top.
Nothing about this needs us. The rule is written out in full at /wp-json/cmvseal/v1/index, and it is ordinary SHA-256, the same function that secures the connection you are reading this over. Two implementations, ours in PHP and yours in whatever you like, must agree or the seal is wrong.
What it does not claim
The seal proves what we held, not what the authority published. If a regulator edits a notice, the seal is what lets us show you both versions and prove neither was touched by us afterwards. It is a record of our custody, not of their intent.
It also starts when it starts. Notices sealed from today are covered from today. We do not backdate, and there is no seal for a day before the first one on this page.