
PrivyCycle and the unfinished business of health app privacy on Ethereum
Inspiration rarely strikes where one expects. The genesis of PrivyCycle did not emerge from the predictable hum of laptops at ETHCC’s hackathon floor, but rather from the electric tension of a Berlin summer stage in June 2025. There, beneath the spotlights of d/acc Berlin and before a crowd of Ethereum’s sharpest minds, Migle Rakitaite—visionary behind Wxmen Web3Privacy Now —stood face to face with Ethereum’s own Vitalik Buterin. The air crackled as Rakitaite, joined by fellow privacy advocates, challenged Buterin directly: Why had the Ethereum Foundation neglected to champion and fund crypto-native solutions for safeguarding sensitive health data, particularly for period…








