Block top - The block number and length from the blockchain (in blocks) on development of the current block Nonce - The transaction range with the from address (Remember this starts at 0 so a nonce of 100 would really be the a hundred and first transaction submitted by this https://bookmarkinglive.com/story21225757/5-simple-statements-about-blockchain-explorer-solana-explained-https-www-multichain-com-qa-user-knotdrop3