Block peak - The block variety and size with the blockchain (in blocks) on generation of the present block Nonce - The transaction number for the from address (bear in mind this starts at 0 so a nonce of 100 would really be the 101st transaction submitted by this account) https://bookmarkalexa.com/story5901534/explorer-blockchain-base-an-overview-https-pad-geolab-space-1eemv59krmalavl2pdd7cg