COPYRIGHT CERTIFICATE OF ANTERIORITY
To whom it may concern
Perpetual Calendar
- Owner: GUANGCHAO SUN
- Certificate Status:
- Copyright Number: DEP637618518037255688
- Deposit Date: 7/14/2021 9:17:07 AM
- MD5: ap/dj1iGPKhZbD/40CN1Nw==
This Is A Perpetual Calendar.Turn the circle to change the date.We Have The 3d Designs And Photos.
This certificate provides signature and time-stamping associated with a official public notary + provides a proof that is indisputable.
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- Digital signature
- The electronic time stamping
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