16 lines
922 B
Markdown
16 lines
922 B
Markdown
While the blockchain is the innovation that makes LBRY _possible_, the Data Network is the layer that actually makes the blockchain _useful_.
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At this level:
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- Metadata stored in the blockchain is interpreted and validated.
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- Data referenced by metadata is accessed and distributed via a peer-to-peer network.
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- [[Identities]] are created, signed, and validated.
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Data network operations are provided by the [lbrysdk](https://github.com/lbryio/lbry). This SDK also provides local wallet functionality and a set of APIs to facilitate building applications.
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### Additional Resources
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- The [Specification](/spec "Specification") contains a comprehensive specification of data network operations.
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- [Resources](/resources) has further documentation on the LBRY SDK, including its APIs.
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- [Build](/build) teaches you how to create your own app.
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- [Contribute](/contribute) guides you on how to improve the protocol itself.
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