Block top - The block number and length from the blockchain (in blocks) on creation of the present block Nonce - The transaction number for your from address (bear in mind this begins at 0 so a nonce of 100 would truly be the a hundred and first transaction submitted https://bookmarkmoz.com/story20737742/the-fact-about-explorer-blockchain-base-that-no-one-is-suggesting-https-graph-org-unveiling-transparency-how-blockchain-explorers-function-09-04