The other impossible one
"We found out that this is the second" plus six words and a period. Like block 13, it needed the final Wattpad chapter, published months later. The post printed this key's tail, mph, so nobody had to wait.
In the final chapter the sentence ends in climate emergency episode on this planet.. The claim came on July 22, 2019. A player then posted the string, the MD5 and the WIF, which is where the record's key comes from.