Block height - The block amount and length on the blockchain (in blocks) on generation of the current block Nonce - The transaction variety with the from address (bear in mind this commences at 0 so a nonce of 100 would essentially be the 101st transaction submitted by this account) https://gogogobookmarks.com/story20372470/the-definitive-guide-to-explorer-blockchain-ethereum-https-md-darmstadt-ccc-de-znwtrv3frkwon6rj4y8pua