[Crypto projects](https://revain.org/projects/) › Goldcoin

# Goldcoin (GLC): how it works, supply and reviews

## In short

- **Type**: Layer 1 proof-of-work chain; also a token on Solana and Robinhood Chain.
- **Maximum supply**: 1,172,245,700 GLC total coins.
- **Risks and caveats**: Official supply and treasury numbers differ between pages (fixed 1,172,245,700 GLC vs. 'Total Blocks: Infinite'; 1.1 billion vs. one billion GLC treasury).
- **Checked**: 1 November 2026

## Key facts

- **Ticker**: GLC
- **Official site**: [goldcoinproject.org](https://www.goldcoinproject.org/)

Key facts checked on 1 November 2026 against official sources.

## What is Goldcoin

Goldcoin (GLC) is an open-source cash payment cryptocurrency on its own proof-of-work chain, launched in May 2013 as a fork of Feathercoin. Since 2026 GLC also exists as a token on Solana and Robinhood Chain.

## Network and consensus

| Parameter | Details |
|---|---|
| Type | Layer 1 proof-of-work chain; also a token on Solana and Robinhood Chain. |
| Consensus | Proof of work with the Scrypt algorithm. |
| Launched | 14 May 2013 on the bitcointalk.org forum; originally forked from Feathercoin. |
| Block time | 2-minute block target (2.5 minutes up to block 44,999); difficulty retargets every block. |
| Capacity | 32 MB blocks; the project states 1,120 transactions per second. |
| Fees | Transactions are free by default; a small fee buys miner priority under heavy traffic. |
| Attack protection | The chain uses its own 'Golden River' difficulty algorithm and a dual 51% defense system. |

## Supply and issuance

| Parameter | Details |
|---|---|
| Maximum supply | 1,172,245,700 GLC total coins. |
| Issuance | Block reward of 3 GLC from block 1,468,200, then reduced each year by a formula; block rewards end in 2100. |
| Treasury | In August 2026 one billion GLC was locked on-chain in two hundred 5-million-GLC tranches. |
| Treasury release | The locked treasury is released on a fixed annual schedule enforced by consensus. |

## What GLC is used for

- GLC is used as a peer-to-peer cash payment currency.
- Miners receive GLC block rewards for securing the proof-of-work chain.

## Who develops and governs Goldcoin

- **Developer**: An international community of volunteers maintains the project; anyone can contribute.
- **Open source**: Free software under the MIT license; code on GitHub.
- **Development model**: The README says AI agents do most coding and release engineering, with humans approving releases.
- **Foundation**: The roadmap marks the setting up of a Goldcoin Foundation (Q4 2024) as completed; no entity is named.

## History

| Date | Event |
|---|---|
| 14 May 2013 | Goldcoin launched on the bitcointalk.org forum, originally forked from Feathercoin. |
| 24 July 2026 | Goldcoin Core v0.17.0-beta1, a rewrite of the client, was released as a public beta; it fixes a critical consensus bug. |
| August 2026 | One billion GLC was locked on-chain as a treasury in two hundred 5-million-GLC tranches. |
| 2026 | GLC launched as a token on Solana and Robinhood Chain. |

## Security and audits

- The chain uses a dual 51% defense system and automated checkpointing; the v0.17.0 client rewrote the 51% defense system.
- The v0.17.0-beta1 release notes say it fixes a critical consensus bug and a wallet-corruption risk on Windows.

## Security incidents

No security incident is recorded in the sources checked on 1 November 2026 (the company’s own channels and incident databases): [defillama.com/hacks](https://defillama.com/hacks), [hacked.slowmist.io](https://hacked.slowmist.io/), [rekt.news/leaderboard](https://rekt.news/leaderboard/), [github.com/goldcoin/goldcoin/releases](https://github.com/goldcoin/goldcoin/releases), [goldcoinproject.org/roadmap.html](https://www.goldcoinproject.org/roadmap.html)

## Official GLC contracts

| Network | Contract address |
|---|---|
| Solana | [GLCzUtuEUJJRBozMrwH3BN5TEy2T7XftGH8TR3yNX5HH](https://explorer.solana.com/address/GLCzUtuEUJJRBozMrwH3BN5TEy2T7XftGH8TR3yNX5HH) |

Native GLC runs on its own chain. The home page also lists a Robinhood Chain GLC token and a separate community memecoin on Solana, which is not GLC.

## Risks and caveats

- Official supply and treasury numbers differ between pages (fixed 1,172,245,700 GLC vs. 'Total Blocks: Infinite'; 1.1 billion vs. one billion GLC treasury).
- The project plans an AI engine that trades at high frequency to align GLC prices across chains.
- The README says AI agents perform most of the development work.

## Official links

- Website: [www.goldcoinproject.org](https://www.goldcoinproject.org/)
- Whitepaper: [github.com/goldcoin/wiki/wiki/GoldCoin-Whitepaper](https://github.com/goldcoin/wiki/wiki/GoldCoin-Whitepaper)
- Source code: [github.com/goldcoin/goldcoin](https://github.com/goldcoin/goldcoin)
- Block explorer: [chainz.cryptoid.info/glc](https://chainz.cryptoid.info/glc/)
- Roadmap: [www.goldcoinproject.org/roadmap.html](https://www.goldcoinproject.org/roadmap.html)

## Questions and answers

**What is Goldcoin?**

Goldcoin (GLC) is an open-source proof-of-work payment cryptocurrency launched on 14 May 2013, originally forked from Feathercoin.

**What is the maximum supply of Goldcoin?**

The block-rewards page lists 1,172,245,700 GLC in total; the explorer showed about 1.147 billion GLC on 1 November 2026.

**How does Goldcoin work?**

It is a Scrypt proof-of-work chain with 2-minute blocks, 32 MB block size and a dual 51% defense system.

**Is Goldcoin on other blockchains?**

Yes. Since 2026 GLC also exists as a token on Solana and Robinhood Chain.

## Sources

- [Goldcoin — Home](https://www.goldcoinproject.org/)
- [Goldcoin — About](https://www.goldcoinproject.org/about.html)
- [Goldcoin — Block rewards](https://www.goldcoinproject.org/block-rewards.html)
- [Goldcoin — Roadmap](https://www.goldcoinproject.org/roadmap.html)
- [Goldcoin — Whitepaper (GitHub wiki)](https://github.com/goldcoin/wiki/wiki/GoldCoin-Whitepaper)
- [Goldcoin — GitHub README](https://github.com/goldcoin/goldcoin)
- [Goldcoin — GitHub releases](https://github.com/goldcoin/goldcoin/releases)
- [GoldCoin explorer (chainz)](https://chainz.cryptoid.info/glc/)

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Page updated: 2026-11-01

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Source: https://revain.org/projects/goldcoin/