Verification Details
This evidence has been cryptographically timestamped. Upload the original file to verify its authenticity.
Important: Use "Export Original File" from the Sealed Proof app's Hash tab. Files saved from Photos will have different hashes due to iOS re-encoding.
Drag & drop your evidence file here
or
Supports photos (.jpg, .jpeg, .heic) and videos (.mov, .mp4)
Computing SHA-256 hash...
Evidence Verified
File Hash
Timestamp Token
Verification Failed
Expected Hash
Computed Hash
Invalid Verification Link
This link appears to be invalid or corrupted. Please request a new verification link from the evidence owner.
Make sure you copied the complete URL including all characters after the # symbol.
Verify Evidence
Verify that a file matches its recorded SHA-256 hash. You can use a verification link or enter the hash manually.
Option 1: Enter Hash Manually
Copy the SHA-256 hash from the PDF certificate or the app, then upload the original file to verify.
Option 2: Use Verification Link
Get a verification link from the Sealed Proof app:
- Open the evidence in Sealed Proof
- Go to the Hash tab
- Tap "Share Verification Link"
- Send the link to whoever needs to verify
You must use the exact original file exported from the Sealed Proof app. In the app, go to the Hash tab and tap "Export Original File". Saving images from Photos or other apps won't work — iOS re-encodes files, which changes the hash.
Verify File
Upload the original file to check if it matches the hash.
Use "Export Original File" from the Sealed Proof app's Hash tab. Files saved from Photos will have different hashes.
Drag & drop your evidence file here
or
Supports photos (.jpg, .jpeg, .heic) and videos (.mov, .mp4)