Block top - The block number and length in the blockchain (in blocks) on development of the current block Nonce - The transaction range with the from address (Remember this starts off at 0 so a nonce of a hundred would actually be the 101st transaction submitted by this account) https://livebackpage.com/story6062148/a-review-of-blockchain-explorer-usdt-https-atavi-com-share-xftxdaz1pgsb4