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153 lines
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btcd
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====
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[](https://travis-ci.org/btcsuite/btcd)
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[](http://copyfree.org)
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[](http://godoc.org/github.com/btcsuite/btcd)
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btcd is an alternative full node bitcoin implementation written in Go (golang).
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This project is currently under active development and is in a Beta state. It
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is extremely stable and has been in production use since October 2013.
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It properly downloads, validates, and serves the block chain using the exact
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rules (including consensus bugs) for block acceptance as Bitcoin Core. We have
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taken great care to avoid btcd causing a fork to the block chain. It includes a
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full block validation testing framework which contains all of the 'official'
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block acceptance tests (and some additional ones) that is run on every pull
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request to help ensure it properly follows consensus. Also, it passes all of
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the JSON test data in the Bitcoin Core code.
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It also properly relays newly mined blocks, maintains a transaction pool, and
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relays individual transactions that have not yet made it into a block. It
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ensures all individual transactions admitted to the pool follow the rules
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required by the block chain and also includes more strict checks which filter
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transactions based on miner requirements ("standard" transactions).
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One key difference between btcd and Bitcoin Core is that btcd does *NOT* include
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wallet functionality and this was a very intentional design decision. See the
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blog entry [here](https://blog.conformal.com/btcd-not-your-moms-bitcoin-daemon)
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for more details. This means you can't actually make or receive payments
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directly with btcd. That functionality is provided by the
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[btcwallet](https://github.com/btcsuite/btcwallet) and
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[Paymetheus](https://github.com/btcsuite/Paymetheus) (Windows-only) projects
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which are both under active development.
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## Requirements
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[Go](http://golang.org) 1.6 or newer.
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## Installation
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#### Windows - MSI Available
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https://github.com/btcsuite/btcd/releases
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#### Linux/BSD/MacOSX/POSIX - Build from Source
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- Install Go according to the installation instructions here:
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http://golang.org/doc/install
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- Ensure Go was installed properly and is a supported version:
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```bash
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$ go version
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$ go env GOROOT GOPATH
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```
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NOTE: The `GOROOT` and `GOPATH` above must not be the same path. It is
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recommended that `GOPATH` is set to a directory in your home directory such as
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`~/goprojects` to avoid write permission issues. It is also recommended to add
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`$GOPATH/bin` to your `PATH` at this point.
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- Run the following commands to obtain btcd, all dependencies, and install it:
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```bash
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$ go get -u github.com/Masterminds/glide
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$ git clone https://github.com/btcsuite/btcd $GOPATH/src/github.com/btcsuite/btcd
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$ cd $GOPATH/src/github.com/btcsuite/btcd
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$ glide install
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$ go install . ./cmd/...
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```
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- btcd (and utilities) will now be installed in ```$GOPATH/bin```. If you did
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not already add the bin directory to your system path during Go installation,
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we recommend you do so now.
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## Updating
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#### Windows
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Install a newer MSI
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#### Linux/BSD/MacOSX/POSIX - Build from Source
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- Run the following commands to update btcd, all dependencies, and install it:
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```bash
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$ cd $GOPATH/src/github.com/btcsuite/btcd
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$ git pull && glide install
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$ go install . ./cmd/...
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```
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## Getting Started
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btcd has several configuration options avilable to tweak how it runs, but all
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of the basic operations described in the intro section work with zero
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configuration.
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#### Windows (Installed from MSI)
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Launch btcd from your Start menu.
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#### Linux/BSD/POSIX/Source
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```bash
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$ ./btcd
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```
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## IRC
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- irc.freenode.net
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- channel #btcd
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- [webchat](https://webchat.freenode.net/?channels=btcd)
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## Mailing lists
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- btcd: discussion of btcd and its packages.
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- btcd-commits: readonly mail-out of source code changes.
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To subscribe to a given list, send email to list+subscribe@opensource.conformal.com
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## Issue Tracker
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The [integrated github issue tracker](https://github.com/btcsuite/btcd/issues)
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is used for this project.
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## Documentation
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The documentation is a work-in-progress. It is located in the [docs](https://github.com/btcsuite/btcd/tree/master/docs) folder.
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## GPG Verification Key
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All official release tags are signed by Conformal so users can ensure the code
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has not been tampered with and is coming from the btcsuite developers. To
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verify the signature perform the following:
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- Download the public key from the Conformal website at
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https://opensource.conformal.com/GIT-GPG-KEY-conformal.txt
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- Import the public key into your GPG keyring:
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```bash
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gpg --import GIT-GPG-KEY-conformal.txt
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```
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- Verify the release tag with the following command where `TAG_NAME` is a
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placeholder for the specific tag:
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```bash
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git tag -v TAG_NAME
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```
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## License
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btcd is licensed under the [copyfree](http://copyfree.org) ISC License.
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