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 a hundred would basically be the a hundred and first transaction https://bookmarkoffire.com/story20140142/what-does-blockchain-explorer-usdt-mean-https-graph-org-unveiling-transparency-how-blockchain-explorers-function-09-04