Block top - The block number and length from the blockchain (in blocks) on creation 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 actually be the 101st transaction submitted by this account) https://socialimarketing.com/story5868464/indicators-on-blockchain-explorer-search-you-should-know-https-mathiasen-curry-2-federatedjournals-com-diving-deep-blockchain-explorers