POSDAO Whitepaper

xDai will transition to a new type of dPOS consensus called POSDAO.

Barinov, I., Arasev, V., Fackler, A., Komendantskiy, V., Gross, A., Kolotov, A. and Isakova, D. POSDAO: Proof of Stake Decentralized Autonomous Organization (April 29, 2019). Available at SSRN: https://ssrn.com/abstract=3368483 or http://dx.doi.org/10.2139/ssrn.3368483

The xDai chain is currently functioning in a permissioned POSDAO-based consensus, where selected validators use xDai-based STAKE tokens to secure the chain. xDai will transition to public POSDAO in the coming months, where community members can become validator candidates as well as delegate STAKE to candidates and validators.

POSDAO introduces a staking token, called STAKE, as well as a new consensus model where individuals who own STAKE may become validators or may delegate their stake on current validators in order to protect the chain. Validators and delegators receive rewards in exchange for providing STAKE.