Block top - The block selection and duration of 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://socialaffluent.com/story6159462/explorer-blockchain-things-to-know-before-you-buy-https-pad-geolab-space-1eemv59krmalavl2pdd7cg