Block height - The block amount and size on 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 actually be the 101st transaction submitted by this account) https://advicebookmarks.com/story28413448/5-easy-facts-about-blockchain-explorer-api-described-https-graph-org-unveiling-transparency-how-blockchain-explorers-function-09-04