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 (bear in mind this begins at 0 so a nonce of one hundred would truly be the a hundred and first transaction https://bookmark-dofollow.com/story25688041/the-blockchain-explorer-address-diaries-https-articlescad-com-the-remarkable-adventurers-in-the-cyber-frontier-grasping-distributed-ledger-instruments-325096-html