Proof somebody else checked, not just your word.
Send an independent person to look, take photos, and confirm the work really happened. Nobody can call that self reported.
How it actually works
Finish the job. Ask for a check. A link goes to whoever you choose, a client, an independent inspector, anyone you trust to look. They take photos, say what they saw, and a proper report gets built from it.
Why this actually matters
Anyone can write their own completion report. Almost nobody can get someone independent to confirm it. That difference is what gets you paid faster and trusted quicker.
It only sees what it needs to
Whoever checks the work sees only that one job. Nothing else about your business.