Block top - The block number and length in the blockchain (in blocks) on development of the present block Nonce - The transaction range with the 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://socialbookmarkgs.com/story20561144/a-review-of-blockchain-explorer-xrp-http-www-drugoffice-gov-hk-gb-unigb-cryptoexplorerhub-com