As per the following official Twitter thread
https://twitter.com/RigoBlock/status/1337502966656495619?s=20
GRG staking was launched on the 11th of December, with a grace period of 14 days.

This means that until the 25th of December 2020, RigoBlock pools operators have time to register their staking pools to the staking system and GRG holders have enough time to stake. Once GRG is staked, the amount staked is included for calculations from the beginning of the following epoch. Each epoch is 14 days long.

The individual pool rewards are based on the RigoBlock “Proof of Performance” incentives mechanism, coupled with a competitive market for stake…

RigoBlock

Asset Management Network

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