Block top - The block number 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 basically be the 101st transaction submitted by this account) https://1001bookmarks.com/story20132636/not-known-facts-about-blockchain-explorer-usdt-https-pad-fs-lmu-de-h2fzbno0rjqfpyic-69lxg