lnd.xprv/README.md

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## Lightning Network Daemon
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[![Build Status](https://img.shields.io/travis/lightningnetwork/lnd.svg)](https://travis-ci.org/lightningnetwork/lnd)
[![MIT licensed](https://img.shields.io/badge/license-MIT-blue.svg)](https://github.com/lightningnetwork/lnd/blob/master/LICENSE)
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[![Irc](https://img.shields.io/badge/chat-on%20libera-brightgreen.svg)](https://web.libera.chat/#lnd)
[![Godoc](https://godoc.org/github.com/lightningnetwork/lnd?status.svg)](https://godoc.org/github.com/lightningnetwork/lnd)
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<img src="logo.png">
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The Lightning Network Daemon (`lnd`) - is a complete implementation of a
[Lightning Network](https://lightning.network) node. `lnd` has several pluggable back-end
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chain services including [`btcd`](https://github.com/btcsuite/btcd) (a
full-node), [`bitcoind`](https://github.com/bitcoin/bitcoin), and
[`neutrino`](https://github.com/lightninglabs/neutrino) (a new experimental light client). The project's codebase uses the
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[btcsuite](https://github.com/btcsuite/) set of Bitcoin libraries, and also
exports a large set of isolated re-usable Lightning Network related libraries
within it. In the current state `lnd` is capable of:
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* Creating channels.
* Closing channels.
* Completely managing all channel states (including the exceptional ones!).
* Maintaining a fully authenticated+validated channel graph.
* Performing path finding within the network, passively forwarding incoming payments.
* Sending outgoing [onion-encrypted payments](https://github.com/lightningnetwork/lightning-onion)
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through the network.
* Updating advertised fee schedules.
* Automatic channel management ([`autopilot`](https://github.com/lightningnetwork/lnd/tree/master/autopilot)).
## Lightning Network Specification Compliance
`lnd` _fully_ conforms to the [Lightning Network specification
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(BOLTs)](https://github.com/lightningnetwork/lightning-rfc). BOLT stands for:
Basis of Lightning Technology. The specifications are currently being drafted
by several groups of implementers based around the world including the
developers of `lnd`. The set of specification documents as well as our
implementation of the specification are still a work-in-progress. With that
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said, the current status of `lnd`'s BOLT compliance is:
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- [X] BOLT 1: Base Protocol
- [X] BOLT 2: Peer Protocol for Channel Management
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- [X] BOLT 3: Bitcoin Transaction and Script Formats
- [X] BOLT 4: Onion Routing Protocol
- [X] BOLT 5: Recommendations for On-chain Transaction Handling
- [X] BOLT 7: P2P Node and Channel Discovery
- [X] BOLT 8: Encrypted and Authenticated Transport
- [X] BOLT 9: Assigned Feature Flags
- [X] BOLT 10: DNS Bootstrap and Assisted Node Location
- [X] BOLT 11: Invoice Protocol for Lightning Payments
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## Developer Resources
The daemon has been designed to be as developer friendly as possible in order
to facilitate application development on top of `lnd`. Two primary RPC
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interfaces are exported: an HTTP REST API, and a [gRPC](https://grpc.io/)
service. The exported API's are not yet stable, so be warned: they may change
drastically in the near future.
An automatically generated set of documentation for the RPC APIs can be found
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at [api.lightning.community](https://api.lightning.community). A set of developer
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resources including talks, articles, and example applications can be found at:
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[dev.lightning.community](https://dev.lightning.community).
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Finally, we also have an active
[Slack](https://lightning.engineering/slack.html) where protocol developers, application developers, testers and users gather to
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discuss various aspects of `lnd` and also Lightning in general.
## Installation
In order to build from source, please see [the installation
instructions](docs/INSTALL.md).
## Docker
To run lnd from Docker, please see the main [Docker instructions](docs/DOCKER.md)
## IRC
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* irc.libera.chat
* channel #lnd
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* [webchat](https://web.libera.chat/#lnd)
## Safety
When operating a mainnet `lnd` node, please refer to our [operational safety
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guidelines](docs/safety.md). It is important to note that `lnd` is still
**beta** software and that ignoring these operational guidelines can lead to
loss of funds.
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## Security
The developers of `lnd` take security _very_ seriously. The disclosure of
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security vulnerabilities helps us secure the health of `lnd`, privacy of our
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users, and also the health of the Lightning Network as a whole. If you find
any issues regarding security or privacy, please disclose the information
responsibly by sending an email to security at lightning dot engineering,
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preferably encrypted using our designated PGP key
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(`91FE464CD75101DA6B6BAB60555C6465E5BCB3AF`) which can be found
[here](https://gist.githubusercontent.com/Roasbeef/6fb5b52886183239e4aa558f83d085d3/raw/5fa96010af201628bcfa61e9309d9b13d23d220f/security@lightning.engineering).
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## Further reading
* [Step-by-step send payment guide with docker](https://github.com/lightningnetwork/lnd/tree/master/docker)
* [Contribution guide](https://github.com/lightningnetwork/lnd/blob/master/docs/code_contribution_guidelines.md)