Legal counsel has advised that illicit content in a public blockchain is not an issue so long as you aren't accessing the data and transforming it to be displayed in a human readable format.

X (formerly Twitter)

Bob McElrath (@BobMcElrath) on X

@evoskuil @murchandamus @Luffy_D_Dono When I was the Bitcoin SME at Fidelity I had to contend with this. There's links to dark web murder for hire ...