Verify a report

Type the verification code printed in the footer of an Earwitness report. We tell you whether the document you hold matches the one that was generated.

This report is unaltered

Code NR-7K2M-4Q matches a report generated by Earwitness.

Report fingerprint

sha-256 · 9f3a 1c7e 4b02 d8e6 …

A fingerprint is a short code computed from the whole file. Change one letter and it changes.

Generated

30 Oct 2026, 09:12 AEDT

16 pages · A4 · 3.8 MB

Sessions sealed

Each recording session was time-stamped by an independent timestamp authority when it ended, so its clock cannot be moved later.

9 Oct – 29 Oct 2026 · 21 sessionsSealed by a public timestamp authority

30 Oct – 6 Nov 2026 · 7 sessionsSealed by a public timestamp authority

Grades used in this report

Calibrated mic Class 1 instrument Indicative

Calibrated mic: days 1–21. Class 1 instrument: days 22–28. Indicative: the phone itself, used for timing, diary and photos only.

What this check does and does not do

We show no content, only whether the document matches. Nothing from the report is stored or displayed on this page.
Anyone with the report can check. No account, no app.
A match means the file was not changed after it was generated. It does not judge whether the noise was unreasonable.
If the result says "does not match", ask the person who gave you the report for the original file.

Earwitness · not legal advice. Phone readings are indicative unless marked otherwise.