Block top - The block range and duration with the blockchain (in blocks) on creation of the current block Nonce - The transaction variety with the from address (bear in mind this starts at 0 so a nonce of 100 would in fact be the a hundred and first transaction https://bookmark-search.com/story20420779/blockchain-explorer-usdt-trc20-fundamentals-explained-https-md-un-hack-bar-de-0oxwjunrtqeqpltmmf-tlw