On the mixer or exchange Deposit page, click the Get Letter of Guarantee button. Open the downloaded file.
In the Guarantee Letter, locate the DIGITAL SIGNATURE section and copy the entire block (starting with -----START DIGITAL SIGNATURE-----
). You can also use the Copy Signature button.
On the Signature Validation page, paste your copied signature into the ENTER YOUR DIGITAL SIGNATURE field and click the Validate button.
If valid, you will see the “The signature has been validated successfully. The provided data is correct.” message. If invalid, make sure the Guarantee Letter belongs to you, is up to date, and the signature is copied in full.
-----START DIGITAL SIGNATURE-----
and the last line -----END DIGITAL SIGNATURE-----
are included. Do not add extra spaces or characters.