Block top - The block quantity and size from the blockchain (in blocks) on development of the current block Nonce - The transaction number to the from address (bear in mind this commences at 0 so a nonce of 100 would essentially be the 101st transaction submitted by this account) https://letusbookmark.com/story22426280/what-does-blockchain-explorer-usdt-mean-https-skitterphoto-com-photographers-1387379-jimenez-deleuran