Block top - The block selection and duration of the blockchain (in blocks) on creation of the current block Nonce - The transaction range for that from address (Remember this starts off at 0 so a nonce of a hundred would basically be the one hundred and first transaction submitted https://toplistar.com/story22516462/5-easy-facts-about-blockchain-explorer-api-described-https-www-webwiki-nl-cryptoexplorerhub-com