Block top - The block number 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://socialtechnet.com/story6344079/not-known-details-about-blockchain-explorer-usdt-trc20-https-pad-stuve-uni-ulm-de-qjwqtezvsfelat3ec1kc9q