Block top - The block number and length from the blockchain (in blocks) on generation of the present block Nonce - The transaction selection for the from address (bear in mind this starts at 0 so a nonce of 100 would actually be the 101st transaction submitted by this account) https://bookmarkshq.com/story22109780/new-step-by-step-map-for-blockchain-explorer-unconfirmed-transaction-https-sparktv-net-post-810410-https-cryptoexplorerhub-com-in-the-ever-evolving-world-of-copyright-compreh-html