While this news is primarily of interest to developers, it’s good for the broader community to be aware of progress being made “behind the scenes.” It’s important for all BTG users and BTG investors to know that we’re constantly improving our infrastructure and environment so that development progress is well-supported, for outside developers as well as for those working on the Bitcoin Gold Project, itself.

Launched: Testnet v3

The team has recently finished a testnet reset for the Bitcoin Gold ecosystem and has stood up a few new resources that are useful to developers.

A testnet is critical for developers to be able to freely experiment and trial their ideas without having to put real BTG on the mainnet at risk. We’ve established this testnet infrastructure to give developers a system to work with that will be readily available. We want all devs, from professionals to hobbyists, to be free to work without worrying about a test environment.

Another notable development: this testnet uses a new state-of-the-art Difficulty Adjustment Algorithm (developed with DAA researcher zawy12). This refined algorithm should be more sensitive to rapid changes in network hashpower while being less likely to over-compensate and should reduce the impacts of large hashpower swings on the overall block find-time. We plan to incorporate this improved DAA on the Bitcoin Gold mainnet in the future. The changed DAA on the testnet has no impact on developers writing software that uses BTG.

Other Resources:

We’ve also provided a few other important resources for developers, which will also be public:

A Testnet Faucet – https://test-faucet.bitcoingold.org/

This gives developers an easy way to pick up “test coins” that can be used during development, testing, and experiments, without having to start mining and waiting to earn them. (Testnet coins cannot be bought or sold on the market.)

A Testnet Explorer – https://test-explorer.bitcoingold.org/insight2

This explorer allows an easy way to observe and browse the testnet blockchain and monitor the status of the network, and it also provides a full Insight API. This means that developers can focus on their particular application, and call the Insight API to perform the actual interaction with the blockchain – just like with our live mainnet explorer, https://explorer.bitcoingold.org/ (Developers can find the Insight API documentation here.)

Large organizations or projects may want to stand up their own private Insight instances on testnet and mainnet, but ours will be kept public to ensure that everyone around the world has a fair chance to get involved with developing software for blockchain.

A Testnet Pool – http://testnet.pool.gold:8080

This allows developers of miner software to access a test pool, and allows volunteer miners to dedicate some hashpower support the testnet. (Note: mining on the testnet only generate testnet coins, which have no market value.)

An SPV Wallet to be released shortly

An SPV Wallet (Simplified Payment Verification), sometimes called a “Light Wallet,” greatly reduces the resource load necessary to provide wallet services. This is important for developers working on limited resources, or for those who are developing tools intended to work on low-resource systems. On the mainnet, there’s security added to the whole network each time another full node shares the full blockchain, but for development, testing, and some services, it’s good not to have to download and parse the entire blockchain.

I’m a developer. How do I get on the new testnet?

Technical details are published on the Tesnet v3 wiki on GitHub3.


All the testnet components described above are open to the public, and are built with open-source projects. While it should be clear that this helps make our ecosystem accessible to new developers, it’s worth noting that having this infrastructure in place also eases the project’s own development burdens! Simply put, it makes it easier to work, and makes the BTG development space more inviting to new developers.

Establishing and maintaining these testing resources is vital to the continued healthy growth and development of the code for the Bitcoin Gold, for the many projects being built for it and on it – and the many projects new developers have yet to conceive!

Laying a solid foundation,
The Bitcoin Gold Organization

Testnet v3 Chinese

Testnet v3 Korean