Block top - The block number and length from the blockchain (in blocks) on creation of the present block Nonce - The transaction number for the from address (bear in mind this starts at 0 so a nonce of 100 would really be the 101st transaction submitted by this account) https://socialwebleads.com/story6294208/the-blockchain-explorer-usdt-trc20-diaries-https-peatix-com-user-27717689