Block top - The block number and length in the blockchain (in blocks) on development of the current block Nonce - The transaction selection for the from address (Keep in mind this begins at 0 so a nonce of one hundred would truly be the 101st transaction submitted by this https://vuf.minagricultura.gov.co/Lists/Informacin%20Servicios%20Web/DispForm.aspx?ID=11784754