Questions, answered plainly.
Your file stays on your device. During normal receipt creation, your device sends a randomized code made from its fingerprint, plus encrypted recovery data. It doesn't send the plain fingerprint or the random value that opens the code. Keep the original file and the complete receipt for checking. Privacy Policy.
Can the receipt establish trademark priority?
The receipt alone does not prove first use. It dates exact file bytes, not commercial activity or priority.
Can a dated mockup become a valid specimen?
Dating it does not turn a mockup into evidence of actual use. Check USPTO's specimen requirements.
Source summary as of October 30, 2026. Check the current source and its scope.
Context for this answerThe file tester runs on your device. It does not issue a timestamp or take a payment.