Anyway, out of curiosity, even if the date was accurate, why would this be an attack? Aren't network attacks usually the opposite? Spamming transactions so that the mempool gets full, the network gets slower and fees get higher?
That value must be a quarter to half average of the final result.
Check it again tomorrow and if still displays sub 50,000s, there's really a huge drop in activities by Bitcoin wallet/node users.
Not blockchain.info's inaccuracy, neither (Although, displaying the partial count can make misunderstandings like this)
I requested to lock this thread (And PMed the Author) since it still causing misinformation among the (...) members.