Block top - The block number and length from the blockchain (in blocks) on creation of the current block Nonce - The transaction variety for 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://bookmarkhard.com/story20442638/the-ultimate-guide-to-eth-blockchain-explorer-https-files-fm-f-e6nkandt95