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59 lines
2.1 KiB
Markdown
59 lines
2.1 KiB
Markdown
---
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title: Software Components
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description: The Ocean Protocol network is brought to life by many interacting symbiotic software components.
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---
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Before reading this page, you should understand some [Ocean-specific terminology](/concepts/terminology/).
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## Aquarius
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Every marketplace must run an instance of Aquarius.
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Aquarius provides an API to an off-chain database ("OceanDB") to store and manage metadata about data assets: the assets listed in that marketplace.
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The off-chain database might be MongoDB, Elasticsearch or BigchainDB.
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<repo name="aquarius"></repo>
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## Brizo
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Publishers run Brizo to manage access control to assets on behalf of asset owners or data service providers.
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<repo name="brizo"></repo>
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## Keeper
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A computer running a blockchain client
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(such as [Parity Ethereum](https://www.parity.io/ethereum/))
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where the associated blockchain network is running the Ocean Protocol
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[💧 keeper-contracts](https://github.com/oceanprotocol/keeper-contracts)
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(smart contracts).
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<repo name="keeper-contracts"></repo>
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See also: [Set Up a Keeper](/setup/keeper/)
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## Pleuston
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An example marketplace front-end for consumers to explore, download, and publish data assets within the Ocean Protocol network. Implemented using [React](https://reactjs.org/) and [🦑 squid-js](https://github.com/oceanprotocol/squid-js).
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<repo name="pleuston"></repo>
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## Squid Libraries
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Client libraries used by applications (such as Pleuston or Jupyter notebooks) to interact with Ocean components, including Keepers, Aquarius nodes, Brizo nodes, etc.
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<repo name="squid-js"></repo>
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<repo name="squid-py"></repo>
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<repo name="squid-java"></repo>
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## Secret Store
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A [Parity Secret Store](https://wiki.parity.io/Secret-Store): software for distributed key pair generation, distributed key storage, and threshold retrieval. It's used to store asset access-control keys.
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We have created multiple clients for integrating the Parity Secret Store into Ocean:
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<repo name="secret-store-client-js"></repo>
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<repo name="secret-store-client-py"></repo>
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<repo name="secret-store-client-java"></repo>
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