Block top - The block number and length in the blockchain (in blocks) on development of the present block Nonce - The transaction range with the from address (Remember this starts at 0 so a nonce of 100 would actually be the 101st transaction submitted by this account) Agreement development https://socialtechnet.com/story5734207/not-known-details-about-explorer-blockchain-ton-https-www-demilked-com-author-brokerwhorl5