Block top - The block number and length from the blockchain (in blocks) on creation 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://linkingbookmark.com/story20731879/how-much-you-need-to-expect-you-ll-pay-for-a-good-blockchain-explorer-litecoin-https-rentry-co-4vomqtzo