Block top - The block number and length in the blockchain (in blocks) on development of the present block Nonce - The transaction selection for the from address (bear in mind this begins at 0 so a nonce of 100 would essentially be the one hundred and first transaction submitted https://bookmarkcitizen.com/story20601529/blockchain-explorer-usdt-trc20-fundamentals-explained-https-md-un-hack-bar-de-0oxwjunrtqeqpltmmf-tlw