● 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.

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"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.

Content-free evidenceWhy the ledger never stores records → Security postureHow verdicts are signed and stored → Trust centerControls, sub-processors, posture →

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