Block top - The block number and length on the blockchain (in blocks) on generation of the current block Nonce - The transaction amount for that from address (Remember this starts at 0 so a nonce of one hundred would in fact be the one hundred and first transaction submitted https://bookmarklethq.com/story20572239/the-2-minute-rule-for-blockchain-explorer-solana-https-canvas-instructure-com-eportfolios-4028322-entries-14252553