Each Data Farming round has a pool of OCEAN rewards, where 50% of the pool is paid out in the form of passive rewards & 50% in the form of active rewards that [can be viewed here](https://df.oceandao.org/rewards).
<figure><imgsrc="../.gitbook/assets/data-farming/df-reward-streams.png"alt=""><figcaption><p>Rewards Page overview for each stream.</p></figcaption></figure>
veOCEAN holders can generate yield completely passively if they wish, though they are incentivized with larger real yield if they **actively participate** in farming yield from assets, or completing prediction challenges.
[Volume DF](df-volumedf.md#curate-data-in-volume-df) rewards Data Farmers that allocate their veOCEAN to Ocean datasets. It's called Volume DF because the amount of rewards relies on assets that are actively generating Data Consume Volume.
To get a good sense for how much APY you'll make, we recommend you understand the details of [how veOCEAN works](df-veocean.md). This will give you a basis for the calculations and provide you with an outline for what to expect in terms of rewards over time.
You can find the [how to estimate APY](user-guides/how-to-estimate-apy.md) user guide, calculate a reward schedule, and compare your lock up period with others.
Publishers are strongly incentivized to launch assets in the Ocean Ecosystem. When publishers curate and support their own assets, they [receive double the allocation power](df-volumedf.md#what-are-publisher-rewards).
Challenge DF rewards Data Scientists that produce prediction models that consistently improve the prediction of the price of Ethereum. It's called Challenge DF because weekly rewards are dispensed towards participants that are competing to improve the accuracy of how well we can predict price movements of Ethereum. Therefore, **Challenge DF yields depend on participants accurately outcompeting each other.** Only the top 3 predictions on the leaderboard win.
Predictoor DF rewards Data Scientists (as a predictoor) that submit continuous predictions for future price movements of different assets. It's called Predictoor DF because weekly rewards are dispensed towards predictoors that are competing to accurately predict asset prices. Therefore **Predictoor DF yields depend on participants being accurate and outcompeting each other**.
### What's the difference between Data Farming and Yield Farming?
If you are familiar with 'liquidity mining' then you will find Data Farming similar, but instead, tuned for the curation of high quality assets in the Ocean ecosystem.
Unlike yield farming in DeFi, data farming has real intrinsic utility for Ocean Protocol stakeholders as Data Farmers determine which are the highest quality assets in the Ocean ecosystem to purchase, and as these assets sell, they are rewarded in OCEAN . It's this **curation of the "best" assets in the Ocean ecosystem** that shortens the search times for those looking to shop for assets in the Ocean ecosystem.
To deepen this incentive, Publishers are boosted further and **gain 2x the allocation power** when pointing to their own assets.
The table below shows the total amount of OCEAN rewards that will be distributed among Passive and Active rewards each week. The table cross-references DF Round Number, Start Date, Phase & Week, Sub-Phase & Week, and OCEAN Rewards/Week.
<figure><imgsrc="../.gitbook/assets/data-farming/reward_schedule.png"alt=""><figcaption><p><em>Ocean Reward Schedule for the next 20+ years</em></p></figcaption></figure>
