Evidence
A seal, not a log.
Logs you control are claims. Custosa seals every verdict into a signed, hash-chained record you can verify yourself, offline, without trusting us.
“Did Custosa allow this?” Answered with a seal.
Every decision becomes a verifiable record. Alter one entry and the whole chain breaks.
Hash-chained & signed
Each verdict links to the one before it. Tampering breaks the chain.
Verifiable offline
Verify the chain yourself, on your own machine. No trust in Custosa required.
Content-free
Verdicts only, never content. The ledger holds signed hashes, not records.
Framework-tagged export
Exports as JSON for your audit pipeline. CEF and LEEF next.
Evidence that holds nothing it shouldn't.
Prove what happened without making a second copy of the data you're protecting. An audit trail becomes a second copy to defend. This one can't, because it never holds the record.
