Block top - The block number and length from the blockchain (in blocks) on creation of the current block Nonce - The transaction variety with the from address (bear in mind this starts at 0 so a nonce of 100 would really be the a hundred and first transaction submitted https://one-bookmark.com/story20440365/the-definitive-guide-to-explorer-blockchain-ethereum-https-vuf-minagricultura-gov-co-lists-informacin-20servicios-20web-dispform-aspx-id-11784754