2019-01-17 22:50:06 +01:00
While the blockchain is the innovation that makes LBRY _possible_ , the Data Network is the layer that actually makes the blockchain _useful_ .
At this level:
- Metadata stored in the blockchain is interpreted and validated.
- Data referenced by metadata is accessed and distributed via a peer-to-peer network.
2019-01-30 23:15:10 +01:00
- [[Identities]] are created, signed, and validated.
2019-01-17 22:50:06 +01:00
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.
### Additional Resources
2019-01-29 17:23:46 +01:00
- The [Specification ](/spec "Specification" ) contains a comprehensive specification of data network operations.
2019-01-17 22:50:06 +01:00
- [Resources ](/resources ) has further documentation on the LBRY SDK, including its APIs.
- [Build ](/build ) teaches you how to create your own app.
- [Contribute ](/contribute ) guides you on how to improve the protocol itself.
