> Multiple defenses:
> - Proof of work: Computational challenges with adjustable difficulty.
> - Visual challenges: Multiple visual challenges, including our CERN-inspired particle collision challenge.
> - Privacy-preserving bot detection

Yet another example of PoW in the wild. Maybe the reason PoW never took off before was because it's better paired with other defenses. Hybrid approaches disfavor specialization.

k00b

When payment in sats to defend against spam/bots?