Public record checker

Check the record yourself.

Every decision Brainis records is sealed into a chain: each link’s fingerprint (a hash) is made from its own content plus the fingerprint of the link before it. Paste a record here and this page re-computes those fingerprints in front of you. If a sealed link was edited later, its fingerprint stops matching, and the check stops at the exact link that broke.

That’s the whole promise, plainly: not that a record can’t be changed, but that a change can’t go unnoticed. Nothing here is spread across many computers and nothing is anonymous: this is our record, re-checked by our server, and you can check it as often as you like.

Try a real record

These three are sample records published for this page. The third one was deliberately edited after sealing, so you can see a break get caught instead of being told it would be.

What this proves, and what it doesn’t

It proves a change gets caught. A link whose content changed after sealing no longer matches its recorded fingerprint, and the check names it.
It doesn’t prove a change is impossible. Records live in a database that people and software can write to. The chain makes an edit visible; it can’t make one impossible.
It only answers for public records. A record its owner hasn’t published looks exactly like one that doesn’t exist — on purpose, so nobody can use the answer to find out what a company is doing.

In short: any exported decision record can be checked against the chain on its own — paste the record and the checker re-walks its chain in front of you, link by link.

More on how I’m kept in check: Security · Trust Center