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---
title: Terminology
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description: Terminology specific to Ocean Protocol.
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---
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## Ocean Network
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An *Ocean network* is any EVM-compatible network where [Ocean smart contracts ](https://github.com/oceanprotocol/ocean-contracts ) are deployed. These include:
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- [Ethereum Mainnet ](https://www.ethereum.org )
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- Ethereum [test networks ](/concepts/testnets/ )
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## Data Service, Data Asset, Datatoken
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A *data service* may serve up a dataset or a compute service like Compute-to-Data. It's characterized by a url.
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Each *data asset* is represented by an ERC20 *datatoken* .
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You can access a data service if you send 1.0 datatokens to the Provider.
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## Data Publisher, Provider
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A *data publisher* is someone who has data services that they want to sell. An example is an almond distributor with 30 years of data about almond sales.
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A *Provider* is a service that mediates access to assets on behalf of data owners or data service providers.
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> Initially, most data publishers will also be Providers.
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## Data Consumer
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A *data consumer* is someone who buys a data asset, then consumes it by interacting with the *Provider* .
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## Data Market
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A data market is a service where publishers can list what assets they have, and consumers can see what's available then buy it.
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## Metadata
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Metadata is information about the data asset. In Ocean, metadata is stored on-chain, but marketplaces may have a local cache for faster search.
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