Block top - The block selection and duration of the blockchain (in blocks) on creation of the current block Nonce - The transaction quantity for your from address (bear in mind this begins at 0 so a nonce of 100 would really be the 101st transaction submitted by this account) https://altbookmark.com/story22710925/details-fiction-and-explorer-blockchain-ethereum-https-files-fm-f-e6nkandt95