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These kind of measures are political suicide in Western democracies

CSAM has entered the chat. ("Why do you support child abuse, Senator?")

The fastest way to kill Bitcoin would be to use it to publish the torrent hashes of child porn. Since it is nearly impossible to erase information from the chain, this “taint” is forever. Any participant node processing the chain will be “distributing child pornography.”

That’s thoroughly illegal pretty much everywhere. Worse, it has a very powerful social stigma against it, which means you can’t even fight it in court.

It has already been done [1], the issue is that Bitcoin is not really made for large files storage, so you'd store hashes to a torrent as you suggested or you'd split parts of the illegal content that then would require some other protocol be recomposed... Historically that has not been enough to cause legal trouble for network participants, another reason is that this data can also be deleted from your own node once you are made aware of it. It's been an anti-Bitcoin talking point for many years, nobody really cares about it.

[1] https://blockchain.comsys.rwth-aachen.de/

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