Quote from: mocacinno on December 25, 2019, 12:56:06 PM

Quote from: hazem70 on December 25, 2019, 12:46:00 PM

but I need a proof that this payment belongs to my user account !!

Usually, these kind of sites generate a unique deposit address for each user. That's the way these get tracked. The message in the uri you posted is for your information only, it never ends up in a block.

This is correct. Don't worry in proving that this payment came from your account.

However, it they still want a proof you can sign a message just like Theokool1s said.

Just transfer and don't worry. This address was generated exclusively for your purchase/transfer. No other user received that address as well (it would be highly unlikely)