Block height - The block range and length in the blockchain (in blocks) on creation of the current block Nonce - The transaction number for the 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://bookmarkstown.com/story20920547/top-guidelines-of-explorer-blockchain-solana-https-www-demilked-com-author-brokerwhorl5