Markus SchofneggerMarkus Schofnegger co-authored Poseidon2, a hash function designed for zero-knowledge proof systems.2 talks by Markus SchofneggerZK13: Arithmetization-Friendly Primes and Efficient Constraint Evaluation: STARKs on Custom HardwareZK9: Poseidon2: A Faster Version of the Poseidon Hash Function – Markus Schofnegger (Horizen Labs)