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Contractor documentation

Give your pre‑work photos and agreements a date you can verify.

Record your pre-work photos and agreements before the job starts. If damage, scope or price is disputed later, show the exact files that existed by that date.

Record your job files See how it works ↓

An example dispute over damage and the agreed work

See the situation · 3:07

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Watch on YouTube: Before the First Tool Comes Out (opens in a new tab)

Illustrative scenario, not a customer account.

What a match supports

These exact files existed by this date.

How that helps your case

For a damage dispute, show the photos you recorded before starting. For a scope or price dispute, show the agreement version that existed then. A reviewer can check both against the earlier records.

What it doesn’t establish

It does not prove when or where a photo was taken, whether it accurately depicts the site, or who caused damage. It does not establish client approval or guarantee a dispute outcome. You still have strong, checkable evidence of the exact photos and agreement version that existed by the recorded date, useful in a damage, scope or price dispute.

See how blockchain evidence has been used in court

Record it. Keep it. Show it.

  1. Record before work begins

    Record the original site photos and the agreed quote, scope or contract before starting work. Record later changes as new versions.

  2. Keep the files and proof

    Download the receipts and included proof PDFs when each record is complete. Keep them with the exact photos, agreements or ZIP you recorded.

  3. Show the record if challenged

    Share the recorded photos, agreements or ZIP and proof PDFs with your client or adviser. Anyone can use free Verify to check for a matching record, without an account.

Keep the rest of the story, too.

Keep signed copies, client approvals, change orders and inspection notes with the proof. They connect the files to the job and help explain what both sides agreed.

You can record one ZIP containing pre-work photos, agreements and job notes. Keep that exact ZIP: its proof verifies the archive, not individual extracted files.

Starting a job? Make a record first.

Create an account and choose a credit pack. Each file you record uses one credit; its proof PDF is included.

Record your job files