Haircomb is an extension of the Bitcoin protocol, a virtual directed
cyclic graph (DCG) of stealth payments on top of the Bitcoin blockchain.
Haircomb commitment set is the distributed ledger of all the unique P2WSH
outputs mapped to heights when they first appeared.
Bitcoin will forever be required for paying the haircomb transaction fees as well
as the Bitcoin miners are collecting the reward (in Bitcoin) for any new comb
coins generated by the claimers.