Tamper-proof packing video: Packing videos nobody can call edited

Tamper-proof packing video is a recording of an order being packed that can prove it hasn’t changed since it was stored. In PallasMark, every packing video and photo is linked to its order number and gets a SHA-256 fingerprint, a unique code calculated from the file’s exact bytes, when it is stored. Anyone can open the file’s public verification page, re-check the stored file against that fingerprint and see whether it still matches. Technically this is tamper-evidence: any change to the file is detectable, which is what makes the footage credible in a dispute.

Record them in a system that fingerprints each file when it is stored and lets a third party check it independently. With PallasMark, your team opens the order by scanning its barcode in the iOS or Android app and films the packing. The stored file gets a SHA-256 fingerprint on the order, together with the recording and upload time, the team member, the device model and the operating system. When you answer a dispute, include the file’s verification link from the order’s evidence file, which you generate when you need it, so the reviewer can re-check the file in any browser without an account.

Any video file can be edited, which is why a clip from a camera roll is easy to dismiss. A PallasMark recording is credible because it is captured against a specific order and fingerprinted with SHA-256 when it is stored. Trimming, re-encoding or changing a single frame produces a different fingerprint, so an edited copy no longer matches the record. The order’s evidence file adds the context reviewers ask for: when it was recorded and uploaded, who recorded it, on which device, and, where location is shared, whether it was captured inside your warehouse area.

The SHA-256 fingerprint. When a packing video or photo is stored, PallasMark records a fingerprint calculated from the file’s exact bytes on the order. Change anything, whether you trim a second, re-encode the file or edit a single frame, and the file produces a completely different fingerprint, so it no longer matches the record. The public verification page re-downloads the stored file, hashes it again and shows whether it still matches. For photos and videos, the fingerprint of the original upload, taken before processing, is recorded as well.

Yes. Every fingerprinted file has a public verification page whose address is built from its SHA-256 fingerprint, and it opens in any browser with no account, login or software. The page confirms the record exists, shows a blurred still from the recording, the upload time and whether a stamp is burned into the file. When the reviewer runs the check, it re-downloads the stored file and compares it with the fingerprint. A buyer, bank, marketplace or carrier can confirm the file themselves instead of taking the merchant’s word for it.

Not on the verification page. It always checks the copy stored on the order, so nobody can swap in a different file. To compare a copy you received separately, calculate its SHA-256 hash with any standard tool, for example shasum -a 256 on macOS or Linux, or certutil -hashfile with SHA256 on Windows, and compare the result with the 64-character fingerprint shown on the verification page. If the two match, the files are identical byte for byte; if a single byte differs, so does the fingerprint.

Photos carry the company name, the order number and the upload time in UTC, burned into the image itself. For video, the recording and upload times are stored with the file on the order. The public verification page shows the upload time and states whether a stamp is burned into that particular video, and the order’s evidence file lists the recording time, the upload time, the team member and the device. So the reviewer sees when the footage reached PallasMark, and its fingerprint shows it hasn’t changed since.

No. Your team records on the phones they already have, using the PallasMark app for iOS and Android. They open the order by scanning its barcode, film the item going into the box and upload it. If the connection drops, the upload waits in a queue on the phone and resumes on its own when the network is back. Fingerprinting happens on PallasMark’s side when the file is stored, so nothing needs to be installed at the packing bench beyond the app.