Block top - The block number and length in the blockchain (in blocks) on development of the current block Nonce - The transaction variety 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://cruxbookmarks.com/story20656492/top-guidelines-of-eth-blockchain-explorer-https-www-multichain-com-qa-user-knotdrop3