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Collecting data is not the same as creating evidence.

Notes on proving attendance, and on what a record needs before somebody outside your company will accept it.

4 piecesOne argument each

Writing4 pieces
Alternatives to QR Code Checkpoint2026-08-186 min read
What a QR checkpoint actually prov2026-08-146 min read
How to prove someone was on site2026-08-147 min read
What happens when a phone fakes it2026-08-146 min read

Why this exists

Every product here collects the same data.

The interesting question is not what gets collected but what survives being questioned: by a client who says nobody came, an employee disputing an hour, a commissioner auditing a package, or a tribunal reading a timesheet two years later. Most systems are built for the first reader and fall apart in front of the second.

The gap these pieces are about

Data is not evidence

A reading becomes evidence when somebody can say where it came from, why it should be believed, and what would have happened if it were wrong. Very little field software can answer the third one.

  • What a checkpoint scan actually proves, and what it only implies.
  • Why a position is worth nothing without a trust verdict attached to it.
  • What has to be true of a record before somebody else will accept it.
Data, or evidencethe test
Where did it come fromanswerable
Why believe ittrust verdict on the readinganswerable
What if it were wrongwould you knowusually not

The third question is the one that separates a dashboard from a record somebody else will accept.

Try it on one van for a week.

Put it on one phone, run a normal week, and see what comes out the other end. That answers more than any page here.

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