Block top - The block number and length 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 really be the 101st transaction submitted by this account) https://bookmarkwuzz.com/story20408586/facts-about-blockchain-explorer-confirmed-transactions-revealed-https-www-webwiki-ch-cryptoexplorerhub-com