Block top - The block number and duration of the blockchain (in blocks) on generation of the present block Nonce - The transaction selection to the from address (bear in mind this starts at 0 so a nonce of 100 would truly be the a hundred and first transaction submitted https://bookmarkshut.com/story21991450/blockchain-explorer-usdt-trc20-fundamentals-explained-https-files-fm-f-e6nkandt95