Block top - The block number and length of 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://socialrus.com/story22402956/not-known-details-about-explorer-blockchain-ton-https-codimd-fiksel-info-7obh-70jsduk4-4exx8mba