Block top - The block selection and length from the blockchain (in blocks) on creation of the current block Nonce - The transaction range with the from address (bear in mind this starts at 0 so a nonce of 100 would in fact be the a hundred and first transaction https://sociallytraffic.com/story5195507/a-review-of-blockchain-explorer-usdt-https-vuf-minagricultura-gov-co-lists-informacin-20servicios-20web-dispform-aspx-id-11784754