Block top - The block selection and length of the blockchain (in blocks) on creation of the current block Nonce - The transaction range for that from address (bear in mind this starts at 0 so a nonce of 100 would truly be the 101st transaction submitted by this account) https://ledbookmark.com/story6304686/how-much-you-need-to-expect-you-ll-pay-for-a-good-blockchain-explorer-litecoin-https-urlscan-io-result-0199164a-7dbe-7737-944c-199699cc315c