Block top - The block number and length from the blockchain (in blocks) on creation of the current block Nonce - The transaction amount to the from address (Keep in mind this commences at 0 so a nonce of one hundred would essentially be the one hundred and first transaction https://listbell.com/story10423546/blockchain-explorer-usdt-trc20-fundamentals-explained-https-pad-geolab-space-1eemv59krmalavl2pdd7cg