Block top - The block variety and size with the blockchain (in blocks) on creation of the current block Nonce - The transaction variety with the from address (bear in mind this begins at 0 so a nonce of one hundred would essentially be the one hundred and first transaction https://worldlistpro.com/story22536251/explorer-blockchain-base-an-overview-https-pad-fs-lmu-de-h2fzbno0rjqfpyic-69lxg