Block top - The block amount and size in the blockchain (in blocks) on development of the current block Nonce - The transaction range 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://userbookmark.com/story20442884/helping-the-others-realize-the-advantages-of-blockchain-explorer-one-http-www-drugoffice-gov-hk-gb-unigb-cryptoexplorerhub-com