Block top - The block number and length from the blockchain (in blocks) on creation of the current block Nonce - The transaction selection with the from address (bear in mind this starts at 0 so a nonce of 100 would truly be the a hundred and first transaction submitted https://bookmarkpath.com/story20631607/the-smart-trick-of-blockchain-explorer-app-that-nobody-is-discussing-https-codimd-fiksel-info-7obh-70jsduk4-4exx8mba