Private
Your money is nobody's business
Most cryptocurrencies expose your balance and payment history on a public ledger. In Firo’s official wallets, Spark makes private payments the default.
Get a private wallet
Lelantus Spark
Firo’s privacy protocol for direct payments. Spark hides the sender, recipient, and amount from public ledger observers, while zero-knowledge proofs let the network verify every transaction without requiring a trusted setup.
Private balances and Payments
Spark addresses cannot be searched on the blockchain like ordinary public addresses. Funds held and payments made with Spark stay out of public view, while view keys let you share transaction information when you choose.
Large, overlapping anonymity sets
Each Spark spend is hidden among a large set of possible coins. These sets are arranged as overlapping windows, so a new set carries privacy forward from the previous one instead of starting with an empty crowd. The more Spark activity, the larger the crowd to hide in.
Privacy built to be understood and to last.
Private money should not depend on a single company or a small circle of experts. Spark combines established cryptographic building blocks, published research, open-source code, and a modular design to make independent scrutiny and long-term maintenance practical.
Design choices you can check
Privacy you cannot inspect is privacy you have to take on trust. Here is how Spark is built, and what each choice makes possible.
| Design choice | Spark | Why it matters |
|---|---|---|
| Established cryptographic foundations | Yes | Easier for independent experts to analyze |
| Public research and source code | Yes | Others can inspect, implement, and maintain the work |
| Modular construction | Yes | Components can be reviewed and upgraded separately |
| Independent audits | Cryptography and code | Scrutiny beyond the original developers |
| Trusted setup | Not required | No secret setup material to generate and destroy |
Where to next
Private is one side of Firo. Here are the other two.
