Verify it yourself
Don’t take our word for it. Check the record.
An RTI verification package is a workspace’s full SHA-256 chain, downloaded from Activity. Drop it below and this page recomputes every hash right in your browser. Nothing is uploaded, and the same check runs offline with a free, open tool. If a sealed record was altered, the check shows where.
Verify a package
Everything above runs in your browser with the Web Crypto API. The file is read locally and never sent anywhere. The identical check is available as a command-line tool and an offline page, so a record can be confirmed years from now without RTI.
Tamper evident record
Every record is chained. Nothing edits quietly.
Verify a packageHow the audit trail worksEach record stores the hash of the one before it. If those two values stop matching, the chain is broken and stays broken.
- Prev
- 0000…0000
- Hash
- a4f7c2…9c21
Linked
- Prev
- a4f7c2…9c21
- Hash
- b81d05…4e77
Linked
- Prev
- 2fc90e…81a3
- Hash
- 3fa9e1…c108
Chain break
RTI-0412 was altered after signing. Its stored prev-hash no longer matches RTI-0411.
What the check proves, and what it does not.
The chain holds
Each record hashes the one before it. Recompute every hash and, if any record was changed after it was sealed, the match fails. That failure is what you see.
Tamper evident, which is not the same as unalterable
The chain does not stop someone from editing a record. It makes the edit detectable. We never claim more than that.
Get your package
In RTI, a manager opens Activity and chooses Download verification package. Anyone you hand it to can check it here, or offline, with no account.
Get a package of your own to check.
Run a walk in RTI, seal it, and verify the export on this page. The chain is yours to test.
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