Block top - The block number and length from the blockchain (in blocks) on development of the current block Nonce - The transaction variety for that from address (Remember this starts off at 0 so a nonce of a hundred would basically be the 101st transaction submitted by this account) https://bookmarkboom.com/story20245693/explorer-blockchain-base-an-overview-https-mathiasen-curry-2-federatedjournals-com-diving-deep-blockchain-explorers