surehand

Don't take our word for it. Read the record.

Each run is written to the record as it happens: what the agent saw, what it did, who decided.

Chained by SHA-256. Sealed at the close.

One query returns the whole run.

One worked example runs through these pages. The screens are simulated, the figures are invented, and each one says so.

/ fig. 01One run, six events, as sealed. Simulated.
[ as it runs ]

Written as it runs. Not by hand, afterwards.

The step that enforces the rules also writes the record, so nobody has to remember to log.

Each event carries its context, its sources, the decision and who made it.

[ the chain ]

The chain breaks in front of you.

Each record holds the SHA-256 digest of the one before it. Change one field and every digest after it stops matching.

Try it below. The hashing runs in your browser, not on our server.

record · RUN-7F2K4 · sealed 14:32:19Simulated
  1. record 01CHECKING

    prev 000000000000

    sha256 ············

  2. record 02CHECKING

    prev ············

    sha256 ············

  3. record 03CHECKING

    prev ············

    sha256 ············

  4. record 04CHECKING

    prev ············

    sha256 ············

Computing SHA-256 in your browser.

/ fig. 02Four records, hashed live in your browser. Edit any field and watch. Simulated records, real SHA-256.
[ an old run ]

Ask about an old run. It replays from the record.

A year later, an auditor asks about this payment. One query returns the full run: the inputs, the version of the rules, the hold, the decision, the reason.

The record is kept for the retention period your contract sets.

[ article 12 ]

EU AI Act Article 12, field by field.

Article 12 asks high-risk AI systems to allow automatic recording of events over their lifetime.

The record is written automatically as each action runs, and exports per decision with its sources and the approver's name. Your counsel can check the mapping field by field. That is the whole claim.

[ questions ]

What reviewers ask about this part.

Not here? Write to support@surehand.io. A person replies, usually inside two business days.

Book a walkthrough
How do we know nobody changed the record?

Each record holds the SHA-256 digest of the one before it. If anyone edits a record later, us included, the chain breaks and the break shows. Your team can check the chain on its own side, without Gatehouse installed.

Can we ask about an old run?

Yes. One query returns the whole run: what the agent saw, what it did, who decided and under which version of the rules. The record is kept for the retention period your contract sets.

How does this map to EU AI Act record-keeping?

Article 12 asks high-risk AI systems to allow automatic recording of events over their lifetime. The record is written automatically as each action runs, and it exports per decision with its sources and the approver's name, so your counsel can check the mapping field by field.

[ all seven parts ]

Everything between the agent and your systems.

Start here

Bring us the queue nobody wants.

A teardown measures one process, and you keep the document. A walkthrough is 30 minutes on Gatehouse, no slides. We bring the rules and the sealed record of one held payment. You bring one live process and your reviewers' questions.

support@surehand.io