Block top - The block number and size with the blockchain (in blocks) on generation of the present block Nonce - The transaction number for your from address (bear in mind this begins at 0 so a nonce of one hundred would in fact be the a hundred and first https://thejillist.com/story10528003/blockchain-explorer-usdt-trc20-fundamentals-explained-https-canvas-instructure-com-eportfolios-4028322-entries-14252553