"Enabling NIPoPoW Applications on Bitcoin Cash" -@gtklocker (NiPoPow = Non-Interactive Proofs of Proof of Work)
https://arctan.gtklocker.com/thesis.pdf
via
"At the time of writing of this thesis, both implementations run in production on the Bitcoin Cash testnet chain and have been running for over 3 months"
The median Bitcoin Cash fee per byte at the time of writing (November 2018) is 1 satoshi. Multiplied by our transaction size this gives us a transaction fee of 244 satoshis.