Block top - The block number and length from the blockchain (in blocks) on development of the present block Nonce - The transaction selection with the from address (bear in mind this starts at 0 so a nonce of 100 would actually be the 101st transaction submitted by this account) https://bookmarkshome.com/story6594311/the-ultimate-guide-to-eth-blockchain-explorer-https-pad-stuve-uni-ulm-de-qjwqtezvsfelat3ec1kc9q