Block top - The block number and length from the blockchain (in blocks) on development of the current block Nonce - The transaction variety for that from address (Remember this starts off at 0 so a nonce of a hundred would actually be the 101st transaction submitted by this account) https://extrabookmarking.com/story20423775/5-simple-statements-about-blockchain-explorer-solana-explained-https-hedgedoc-k8s-eonerc-rwth-aachen-de-0szjqhm8rceyuj2fq5ha9g