Block top - The block number and length from the blockchain (in blocks) on creation of the current block Nonce - The transaction amount for your from address (bear in mind this starts at 0 so a nonce of 100 would actually be the 101st transaction submitted by this account) https://bookmarkindexing.com/story20409002/the-2-minute-rule-for-blockchain-explorer-solana-https-www-giveawayoftheday-com-forums-profile-1172807