Block top - The block variety and length with the blockchain (in blocks) on generation of the current block Nonce - The transaction variety with the from address (Remember this starts at 0 so a nonce of 100 would in fact be the a hundred and first transaction submitted by https://allbookmarking.com/story20802888/the-fact-about-explorer-blockchain-base-that-no-one-is-suggesting-https-graph-org-unveiling-transparency-how-blockchain-explorers-function-09-04