Block height - The block quantity and length in the blockchain (in blocks) on development of the present block Nonce - The transaction selection with 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://bookmarkhard.com/story20216804/the-definitive-guide-to-explorer-blockchain-ethereum-https-telegra-ph-blockchain-trackers-the-key-to-grasping-copyright-transactions-09-04