Block top - The block selection and duration of the blockchain (in blocks) on creation of the current block Nonce - The transaction amount to the from address (Keep in mind this starts at 0 so a nonce of 100 would really be the 101st transaction submitted by this account) https://highkeysocial.com/story6158353/what-does-blockchain-explorer-usdt-mean-https-pad-karuka-tech-vc6p2vmyr6a9ij1xxkanwg