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://mysocialfeeder.com/story5557028/blockchain-explorer-fundamentals-explained-https-list-ly-churchkjeldsen86wpibju