Block top - The block number and duration from the blockchain (in blocks) on development of the present block Nonce - The transaction selection for that from address (bear in mind this begins at 0 so a nonce of a hundred would actually be the a hundred and first transaction https://bookmarkstown.com/story20920547/top-guidelines-of-explorer-blockchain-solana-https-www-demilked-com-author-brokerwhorl5