Block top - The block number and length in the blockchain (in blocks) on development of the current block Nonce - The transaction variety with the from address (bear in mind this begins at 0 so a nonce of 100 would essentially be the 101st transaction submitted by this account) https://bookmarkjourney.com/story20708508/top-guidelines-of-explorer-blockchain-solana-https-pad-stuve-uni-ulm-de-qjwqtezvsfelat3ec1kc9q