Block top - The block selection and length from the blockchain (in blocks) on creation of the current block Nonce - The transaction variety for that from address (Remember this starts off at 0 so a nonce of a hundred would actually be the 101st transaction submitted by this account) https://socialbuzzmaster.com/story5868269/5-essential-elements-for-blockchain-explorer-ethereum-https-www-saludcapital-gov-co-sitios-vigilanciasaludpublica-lists-contactenos-dispform-aspx-id-2972663