Block top - The block number and length on the blockchain (in blocks) on development of the present block Nonce - The transaction selection for the from address (bear in mind this starts at 0 so a nonce of 100 would really be the 101st transaction submitted by this account) https://socialmediaentry.com/story5798480/the-blockchain-explorer-usdt-trc20-diaries-https-md-darmstadt-ccc-de-znwtrv3frkwon6rj4y8pua