St-YCRV (Staked YCRV) is a token that is earned by staking YCRV (Yearn Curve Token) in the Yearn Finance platform. Staked YCRV is a reward given to those who actively participate in the Yearn Finance ecosystem. This reward is given in the form of a token that can be used to purchase additional YCRV or other products and services within the Yearn Finance platform. Staked YCRV also gives holders the ability to earn additional rewards through the Yield Farming feature. By staking YCRV, users are able to earn additional rewards that can be used to purchase additional YCRV or other products and services within the Yearn Finance platform. Staked YCRV can also be used to participate in governance decisions and vote on the future of the Yearn Finance platform.