Block top - The block variety and length with the blockchain (in blocks) on creation of the current block Nonce - The transaction number for that from address (bear in mind this starts at 0 so a nonce of a hundred would really be the one hundred and first transaction https://bookmarkize.com/story20568242/the-smart-trick-of-explorer-blockchain-ethereum-that-nobody-is-discussing-https-hedgedoc-eclair-ec-lyon-fr-6mkao4fyqry-pm5xpak7hg