Block top - The block selection and length in the blockchain (in blocks) on development of the present block Nonce - The transaction variety for your from address (Remember this starts off at 0 so a nonce of 100 would in fact be the one hundred and first transaction submitted https://vuf.minagricultura.gov.co/Lists/Informacin%20Servicios%20Web/DispForm.aspx?ID=11784754