Block top - The block variety and length on the blockchain (in blocks) on creation of the current block Nonce - The transaction number to the from address (bear in mind this commences at 0 so a nonce of 100 would actually be the 101st transaction submitted by this account) https://esocialmall.com/story5671725/5-simple-techniques-for-explorer-blockchain-base-https-lamptie2-bravejournal-net-beyond-these-blocks-discovering-the-realm-of-distributed-ledger-explorers