Chia (XCH) is a cryptocurrency developed by Chia Network Inc. that uses a “proof of space and time” (PoST) consensus mechanism. The native token, XCH, is used to reward “farmers” who allocate unused disk space to secure the network. Chia aims to reduce the environmental impact of crypto farming and mining. XCH is used as a reward mechanism, for transaction fees, and as a digital medium of exchange. Chia was created by Chia Network Inc., co-founded in 2017 by Bram Cohen, the inventor of BitTorrent.