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Anonymous, succinct.

Meet Neptune, a Layer-1 peer-to-peer privacy-preserving cash protocol featuring scalability and post-quantum security.

Redefining The Cash

Neptune Cash is more than a privacy coin. It's the first blockchain to integrate zk-STARKs directly at Layer-1 and to introduce Mutator Sets, a breakthrough in private transactions that scale without compromise.

With built-in smart contract support, Neptune is not only money; it's a platform for private applications and the future of finance.

As the cherry on top, all cryptography used in the Neptune protocol is post-quantum secure, meaning that it promises to resist attacks from future quantum computers. Together with privacy and programmability, this makes Neptune a competitor for the world's best money.

What sets Neptune apart

Learn about the technical foundations that make Neptune Cash unique in today's blockchain ecosystem

zk-STARKs

First Layer-1 implementing zk-STARKs. Client-side proving. Every block contains only one big transaction and one proof.

Mutator Sets

Novel privacy primitive enabling privacy without sacrificing succinctness

Post‑Quantum Security

Cryptography designed to resist quantum attacks while efficient today.

Smart Contracts

Arbitrary logic supported by the prover.

Private smart contract platform with strong money properties.

The Fundamentals

Neptune Cash was built with clear and deliberate strategic choices that set it apart from other blockchains and smart contract platforms

Supply Limit

The asymptotic (hard) limit on the coin supply is 42 million coins. The concrete number is irrelevant, instead the fact that this limit exists is the relevant feature. It guarantees that once you own a share of the supply, that share will never shrink.

Premine

1.98% (831,488 coins) was premined to raise funds for bootstrapping the project and supporting initial development. The remaining supply will be mined competitively through proof-of-work by participants who purchase tokens at market prices, earning rewards in return for securing the network.

Founding Company

The founding company will dissolve shortly after launch. After that, the responsibility for fixing any remaining issues falls on a community of volunteer developers. This course of action is necessary because any project that cannot motivate a decentralized governance structure is either incapable of adaptation or decentralized in name only.

Tokenomics

Click on the chevrons to learn more about each aspect of Neptune's tokenomics.

Block Time

~9.8 min

Halving

~3 years

Supply limit

42,000,000 NPT

Premine

831,488 NPT

Neptune Supply

Circulating and time-locked supplies, and the asymptotic supply limit.

You can learn more about Neptune's tokenomics in this blog post.

Contribute

Help build the future of digital cash.

Neptune's strength lies in its community-driven development. Everyone is welcome to take part in the journey of building a decentralized future.

Whether you're a developer, researcher, designer, or simply an enthusiast, your contributions are invaluable.

Join our community to connect with others, propose enhancements, or contribute code. Together, we can shape the future of privacy-preserving, scalable, and secure digital cash.

Join our community

Core maintainers

Throkil Schmidiger
Alan Szepieniec
Dan Da
Jan Ferdinand

Resources

Want to dive deeper? We've got you covered.

Blog

Latest updates and insights about Neptune.
Read Blog

Documentation

Technical documentation on how Neptune works under the hood.
Read Documentation

Triton VM

Explore TritonVM, the zero-knowledge STARK engine tailored to the needs of Neptune Cash.
Learn More

Trade

Check the current price and find exchanges to trade Neptune on CoinMarketCap.
Trade Now

Whitepaper

The complete technical foundation of Neptune Cash. Dive deep into the cryptographic protocols and consensus mechanisms.
Read More

GitHub

Explore Neptune's open-source codebase and contribute.
View Code

Neptune Talk

Neptune's official forum for community discussions, questions, and announcements.
Visit forum

Learn

Educational materials and tutorials to expand your knowledge on how Neptune works.
Learn

Mutator Sets

Novel privacy primitive enabling privacy without sacrificing succinctness
Learn more

Frequently Asked Questions

Got questions? We've got answers.