Block height - The block quantity 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 starts at 0 so a nonce of 100 would truly be the a hundred and first transaction submitted https://socialtechnet.com/story5750619/what-does-blockchain-explorer-usdt-mean-https-fletcher-odonnell-thoughtlanes-net-exploring-further-the-world-of-blockchain