The hours you bill, verified

Never write a timesheet again.
And nobody has to take your word for it.

tenby10 records your work as it happens and signs it at the time, so it can't be rewritten later. Your client opens one link and follows the work week by week. No screenshots, and nothing for them to install.

Start freeSee what your client sees

Free during the beta. What that means. You'll install the source-available client in the first step.

Hiring freelancers and need to check their hours instead? See how verification works →

12h 30m

Alex Rivera · Jul 1–4, 2026

Verified
Jul 1

Built the core ingestion endpoints and refactored the ledger validation.

Jul 2

Wrote unit tests for signature verification and reviewed two pull requests.

Jul 3

Traced a rounding bug in the invoice totals and fixed day-boundary handling.

Signed on the machine at the time. Never a picture of the screen.

This is what your client opens. Open the live sample →

Screenshots are proof nobody trusts anymore.

In 2026 a screenshot or a PDF timesheet can be faked in seconds. A signed, hash-chained record can't, and checking it doesn't mean looking at anyone's screen.

The proof is a signed ledger, not a picture.
Every ten minutes is signed on your machine as it happens and hash-chained to the last. Edit any of it later and the link shows as invalid.
Your screen is never captured.
There is no screenshot code in the client at all, and keystrokes are counted rather than read. Nothing to review, nothing to leak.
Your client checks from a link.
No account, no install, nothing for them to learn. The signed record stays on your machine and the link is yours to revoke.

Don't trust us. Audit us.

You're installing something that watches your activity, so we made it inspectable. The entire client that runs on your machine is source-available, and every privacy claim maps to the line of code that proves it.

Not a keylogger
It counts your keystrokes; it never reads them. The input handler discards key values by construction. No key content, no clipboard, no form data.
Local by default
Raw activity and window titles live in a database on your machine. Nothing is uploaded unless you share a link, and that carries signed hour totals.
Checkable by anyone
Every release is built by public CI from a source-available repo (PPSAL-1.0). The auditor’s guide cites each claim to file and line.
Read the auditor's guide →Browse the source →

Stop writing timesheets.
Start sending proof.

Install the client, pair the machine you work on, and share your first verified link. Free during the beta, with founding terms when paid plans arrive.

Start free