Block top - The block selection and length from the blockchain (in blocks) on creation of the current block Nonce - The transaction variety for that 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://enrollbookmarks.com/story20166482/what-does-blockchain-explorer-usdt-mean-https-clancy-olesen-4-mdwrite-net-opening-the-record-your-resource-to-blockchain-investigation