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https://github.com/piotrnar/gocoin

Full bitcoin solution written in Go (golang)
https://github.com/piotrnar/gocoin

bitcoin gocoin golang node wallet

Last synced: about 1 month ago
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Full bitcoin solution written in Go (golang)

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# About Gocoin



**Gocoin** is a full **Bitcoin** solution written in Go language (golang).



The software architecture is focused on maximum performance of the node

and cold storage security of the wallet.



The **wallet** is designed to be used offline.

It is deterministic and password seeded.

As long as you remember the password, you do not need any backups ever.

Wallet can be used without the client, but with the provided **balio** tool instead.



The **client** (p2p node) is an application independent from the **wallet**.

It keeps the entire UTXO set in RAM, providing an instant access to all its records

and - in consequece - an extraordinary blochchain processing performance.



System memory and time Gocoin client 1.10.1 needs to sync the blockchain up to

the given block number, with comparision to Bitcoin Core 23.0:



![SyncChart](website/quick_sync_gocoin_vs_core.png)

*The above data was collected using [Hetzner](https://hetzner.com) dedicated server

with 3.6GHz Intel i7-7700 CPU, 2x512MB SSD and 1Gbit internet connection,

running Debian 11 (bullseye).

Clients using their default configuration, except for the second (blue) Bitcoin Core

that is set to use **dbcache=16384**.


For other performance charts see [gocoin.pl](https://gocoin.pl/gocoin_performance.html) website.*



# Requirements



## Hardware



**client**:



* 64-bit architecture OS and Go compiler.

* File system supporting files larger than 4GB.

* At least 32GB of system RAM (more recommended).



**wallet**:



* Any platform that you can make your Go (cross)compiler to build for (Raspberry Pi works).

* For security reasons make sure to use encrypted swap file (if there is a swap file).

* If you decide to store your password in a file, have the disk encrypted (in case it gets stolen).



## Operating System

Having hardware requirements met, any target OS supported by your Go compiler will do.

Currently that can be at least one of the following:



* Windows

* Linux

* macOS

* Free BSD



## Build environment

In order to build Gocoin yourself, you will need the following tools installed in your system:



* **Go** (recent version) - http://golang.org/doc/install

* **Git** (optional) - http://git-scm.com/downloads



If the tools mentioned above are properly installed, you should be able to execute `go` and

(optionally) `git` from your OS's command prompt without a need to specify full path to the

executables.



# Getting sources



Download the source code from github to a local folder of your choice by executing:



	git clone https://github.com/piotrnar/gocoin.git



Alternatively - if you don't want to use git - download the code archive

from [github.com/piotrnar/gocoin](https://github.com/piotrnar/gocoin)

using any web browser. Then extract the archive to your local disk.



# Building



## Client node

Go to the `client/` folder and execute `go build` there.



## Wallet

Go to the `wallet/` folder and execute `go build` there.



## Tools

Each sub-folder inside `tools/` folder is a separate tool.



Go to a chosen sub-folder and execute `go build` there.



# Binaries



Windows or Linux (amd64) binaries can be downloaded from



 * https://sourceforge.net/projects/gocoin/files/?source=directory



Please note that the binaries are usually not up to date.

I strongly encourage everyone to build the binaries himself.



# Development

Although it is an open source project, I am sorry to inform you that **I will not merge in any pull requests**.

The reason is that I want to stay an explicit author of this software, to keep a full control over its

licensing. If you are missing some functionality, just describe me your needs and I will see what I can do

for you. But if you want your specific code in, please fork and develop your own repo.



# Support

The official web page of the project is served at gocoin.pl

where you can find extended documentation, including **User Manual**.



Please do not log github issues when you only have questions concerning this software.

Instead see [Contact](http://gocoin.pl/gocoin_links.html) page at [gocoin.pl](http://gocoin.pl) website

for possible ways of contacting me.



If you want to support this project, I ask you to run your own Gocoin node, prefably with TCP port 8333

open for the outside world. Do not hestiate to report any issues you find.