Block height - The block variety and duration of your blockchain (in blocks) on creation of the current block Nonce - The transaction variety with the from address (Remember this starts at 0 so a nonce of one hundred would in fact be the 101st transaction submitted by this account) https://bookmarkpressure.com/story20530894/the-2-minute-rule-for-blockchain-explorer-solana-https-clancy-olesen-4-mdwrite-net-opening-the-record-your-resource-to-blockchain-investigation