Stellar has open-sourced Private Payments, a new privacy-focused system for the XLM network that uses zero-knowledge proofs to support private deposits, transfers, and withdrawals. The design does not aim for full anonymity. Instead, it adds a control layer called Association Set Providers (ASPs), intended to keep checks in place while hiding balances and transaction details.
Groth16 proofs power hidden transfers on Soroban
The system uses Groth16 proofs and runs on Soroban smart contracts, Stellar’s smart contract framework. Users can deposit tokens into a private pool, move funds without disclosing the amount, and withdraw by proving ownership. The core idea is simple: the network can verify that a transaction is valid without exposing sensitive on-chain data.
That makes Private Payments different from standard transparent transfers. Verification stays visible, but account balances and payment details do not. A short point, but an important one. The release is built around privacy, though not around unrestricted anonymity.
ASP model uses Merkle trees to manage approved and blocked keys
To reduce misuse, ASPs manage approved and blocked public keys through special Merkle tree structures. This allows the network to confirm whether a participant belongs to an allowed set without revealing personal details. In practice, the model is trying to hold two goals at once: private transaction flows and verifiable access controls.
That framing gives the release a distinct position in the privacy stack. It is not presented as a censorship-free anonymous rail. It is a privacy payment model with embedded guardrails, which may matter for developers and institutions evaluating whether the design can fit real-world requirements.
Release is still early and has not completed a full security audit
Stellar also notes that Private Payments is still at an early stage. The current version is a proof of concept and has not gone through a full security audit. So while the code is working, it should not be read as a finished production deployment. The article says there is already a live demo, and developers can deploy the contracts, run a frontend locally, and test the system themselves.
The open-source release is a key part of the announcement. By making the code available now, Stellar is opening the door for developers to review it, improve it, and build on top of it. Whether this turns into a widely used privacy layer for the network will depend on adoption and on how the system evolves after testing and feedback.
XLM trades near $0.166 after a 24-hour gain of about 6% to 7%
On the market side, XLM is trading around $0.166, up roughly 6% to 7% over the past 24 hours. Market capitalization is listed near $5.45 billion, with trading volume around $121 million. The report also says XLM recently bounced from the $0.15 support area, which many traders viewed as a strong demand zone.
Short-term levels remain in focus. If XLM holds above the pivot near $0.1619, price could test $0.1713; if it slips below $0.1594, the market may revisit the $0.15 area. The article links the rebound mainly to technical recovery and to a broader crypto market bounce, while the Private Payments update adds a longer-term product narrative for the Stellar ecosystem.