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 100 would actually be the 101st transaction submitted by this account) Contract https://topsocialplan.com/story5821377/new-step-by-step-map-for-blockchain-explorer-unconfirmed-transaction-https-www-pdc-edu-url-https-cryptoexplorerhub-com