Block height - The block variety and size from 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 truly be the a hundred and first transaction submitted https://brightbookmarks.com/story20441785/not-known-details-about-blockchain-explorer-usdt-trc20-https-www-instapaper-com-p-16864836