Block top - The block quantity and size on the blockchain (in blocks) on generation of the current block Nonce - The transaction range with the from address (bear in mind this begins at 0 so a nonce of 100 would basically be the 101st transaction submitted by this account) https://thebookmarknight.com/story20200708/the-ultimate-guide-to-eth-blockchain-explorer-https-skitterphoto-com-photographers-1387379-jimenez-deleuran