The complete chain

Probatio + CERTO

CERTO and LOCUS create the evidence; Probatio examines, verifies and signs it. They do not overlap: they complete each other in a single chain of custody.

CERTO creates the evidence. Probatio examines, verifies and signs it. You acquire with CERTO (or in the field with LOCUS), then analyse and certify with Probatio.
No overlap

Two different, complementary jobs

CERTO (+ LOCUS mobile)Probatio
Verb Acquire / generate Examine / verify / sign
Input A live source: web page, email, chat, cloud, field photo A file you already have
Output A BagIt bundle with hashes, Ed25519 signature, RFC 3161 timestamps A dossier/report, signature verification, qualified signature on your report
Model Per slot (you pay per acquisition) Annual licence
When When the evidence must be captured before it disappears When the evidence is already in hand and must be analysed or challenged
The flywheel

They reinforce each other

From CERTO to Probatio

You acquired a page or a chat with CERTO and have a bundle. With Probatio you re-verify the hashes yourself, validate the whole bundle (Ed25519 signature, RFC 3161 timestamps, CASE/UCO), analyse the extracted files and sign the report with your qualified signature or the CIE.

From Probatio to CERTO

You receive files from a client or the opposing party and verify and analyse them with Probatio. When you need to acquire new evidence — a web page, a chat, a PEC mailbox — you switch to CERTO (or LOCUS in the field).

The strongest synergy

Verifiable — and counter-verifiable

CERTO's #1 differentiator is that its evidence is verifiable by the opposing party. Probatio is the tool the opposing party — or your own technical consultant — uses to re-check it: it opens the bundle and validates its structure, Ed25519 signature and timestamps in one click. With CERTO you produce evidence anyone can re-check; with Probatio you re-check it, yours and other people's.

Two paths

Where do you start?

I acquired with CERTO, now what?

  1. Open the bundle in Probatio → BagIt module: validate structure, signature and timestamps.
  2. Re-verify the hashes and analyse the extracted files (dossier, C2PA, forensic PDF).
  3. Sign your report (CAdES/PAdES, eIDAS/CIE) and apply a timestamp.

I need to acquire new evidence

  1. Is the evidence still online or live (page, chat, PEC, cloud)? It must be captured now.
  2. Use CERTO from the desktop, or LOCUS in the field for geolocated photos and videos.
  3. You get a legally valid bundle → then come back to Probatio to examine and sign it.

Close the loop of your digital evidence

Acquire with CERTO and LOCUS, examine and sign with Probatio. One home: AcquisizioniForensi.