Block top - The block quantity and size with the blockchain (in blocks) on generation of the current block Nonce - The transaction amount for that from address (Remember this starts at 0 so a nonce of a hundred would basically be the 101st transaction submitted by this account) Contract https://bookmarkuse.com/story20358081/a-review-of-blockchain-explorer-xrp-https-wikimapia-org-external-link-url-https-cryptoexplorerhub-com