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RLN Status L2

Oct 15, 2025, 6 min read

vac:acz:ift:2025q4-rln-status-l2

Description

This commitment entails testing the deployed RLN prover module for the gasless feature of Status L2 architecture in testnet and devnet. Specificaly, testing that all RLN components such as prover, verifier, deny list and RPC node in monorepo.

Background

Status L2 is a rollup with Linea and builds a platform with the capacity to support SocialFi and GameFi apps, governance experiments, the Status voting system, and more, all while aiming to keep transaction costs low and throughput high. Status L2 will incorporate a gasless feature, necessitating an effective anti-spam mechanism. Rate-Limiting Nullifier (RLN) is a potential solution that could be deployed on Status L2 to prevent spam and support the gasless functionality.

In 2025q3, we released the RLN prover module with tracking module, tests, optimizations and benchmarks.

Narratives

By utilizing this commitment, we will reinforce the Conduit of Expertise narrative by:

  • Continue sharing the RLN knowledge with the Status L2 team.
  • Testing modified RLN design to make sure all components work seamlessly.

We will also strengthen the Premier Research Destination narrative by:

  • Offering an RLN use-case to the ecosystem that can be used for other gasless roll-up projects.

Task List

Prover Module maintaining

  • fully qualified name: vac:acz:ift:2025q4-rln-status-l2:maintaining
  • owner: Sylvain
  • status: not started
  • start-date: 2025/10/01
  • end-date: 2025/02/30

Description

This task encompasses all maintenance updates for prover module, including CI updates and the creation of future issues.

Deliverables

Multi Tree Support

  • fully qualified name: vac:acz:ift:2025q4-rln-status-l2:multi-tree
  • owner: Sylvain
  • status: started (15%)
  • start-date: 2025/10/01
  • end-date: 2025/10/15

Description

This task entails extending the Prover module to scale from supporting a single tree with up to 1M users to a multi-tree architecture capable of handling up to 32M users without compromising performance. The current design, limited to a single tree, cannot efficiently manage larger user sets. While an initial approach based on consistent hashing was considered, it was ultimately discarded due to performance drawbacks. The new approach introduces a dual-identifier database structure using both tree_id and rln_identifier_id to efficiently distribute and manage user commitments across multiple trees. When one tree reaches its capacity, the system will automatically allocate new users to the next available tree, ensuring seamless scalability and high performance. This task is complete when the Prover module can reliably handle up to 32M users across multiple trees with proper data management and performance validation.

Deliverables

Gas checking support

  • fully qualified name: vac:acz:ift:2025q4-rln-status-l2:gascheck
  • owner: Sylvain
  • status: not started
  • start-date:
  • end-date:

Description

This task entails updating the Prover module to handle cases where a single transaction exceeds the maximum quota and therefore requires burning multiple message IDs. Currently, the module generates one RLN proof per transaction, without accounting for transactions that surpass the allowed quota.

The updated implementation must ensure that the gas information associated with each incoming transaction is received alongside the transaction data. Using both the max quota value and the transaction’s gas amount, the module should calculate the exact number of message IDs to be burned and deduct them from the user’s remaining tier limit accordingly. This task is complete when the Prover module computes and applies the required number of message ID burns based on transaction gas and quota values, ensuring accurate user limit tracking.

Deliverables

Monorepo Review

  • fully qualified name: vac:acz:ift:2025q3-rln-status-l2:monorepo-review
  • owner: Sylvain
  • status: done
  • start-date: 2025/10/01
  • end-date: 2025/11/01

Description

This task entails getting familiar with and testing the monorepoin preparation for the prover integration. In addition to basic exploration and setup, it includes a brief review of the implementation of the sequencer, prover, and smart contracts, as well as a review of the deployment process to identify and fix existing platform-specific bugs. The task also involves testing newly added features to ensure compatibility, stability, and readiness for prover integration. This task is complete when the monorepo environment is fully reviewed, deployment issues are resolved, and new features have been successfully tested and validated.

Deliverables

Decentralized slashing

  • fully qualified name: vac:acz:ift:2025q3-rln-status-l2:monorepo-review
  • owner: Sylvain
  • status: done
  • start-date: 2025/10/01
  • end-date: 2025/11/01

Description

This task entails updating the Prover module to listen for slashing events emitted by the karma.sol smart contract and to handle the corresponding user data accordingly. When a slashing occurs, the Prover must identify the affected user through the event data and remove that user’s commitment from the local database to maintain consistency between on-chain and off-chain states. This task is complete when the Prover module successfully detects slashing events from karma.sol, correctly identifies the corresponding user, and reliably removes their commitment from the local database.

Deliverables

Multi-prover with shared Database

  • fully qualified name: vac:acz:ift:2025q4-rln-status-l2:shared-db
  • owner: Sylvain
  • status: not started
  • start-date:
  • end-date:

Description

This task entails modifying the prover instance to release the multi-prover that each prover module can write to the shared DB for having a prover cluster based on the pre-research in 2025q3.

Deliverables

Devnet testing

  • fully qualified name: vac:acz:ift:2025q4-rln-status-l2:devnet-testing
  • owner: Sylvain
  • status: not started (5%)
  • start-date: 2025/10/15
  • end-date: 2025/11/15

Description

This task focuses on testing the internal devnet. The findings and feedback will be reflected in the RLN specification.

Deliverables

RLN public website

  • fully qualified name: vac:acz:ift:2025q4-rln-status-l2:rln-public-website
  • owner: Ugur
  • status: not started
  • start-date: 2025/10/13
  • end-date: 2025/11/03

Description

This task entails preparing a comprehensive and publicly shareable Notion document that consolidates the latest and most accurate notes on RLN (Rate Limiting Nullifier). The document should explain in technical detail how RLN enables the gasless feature in the Gasless L2, including the underlying cryptographic mechanisms that make gasless operations possible. This task is complete when the Notion document accurately compiles the most recent RLN insights, clearly articulates the technical reasoning behind the Gasless L2’s gasless functionality, and is structured in a manner suitable for public presentation.

Deliverables

SN RLN whitepaper

  • fully qualified name: vac:acz:ift:2025q4-rln-status-l2:whitepaper
  • owner: Ugur
  • status: not started
  • start-date: 2025/11/03
  • end-date: 2025/12/03

Description

This task entails writing the Prover module section of the IEEE-format whitepaper, providing a detailed and technically rigorous explanation of RLN as implemented in the system. The section should build upon the existing RLN specification, expanding it with clear descriptions of the Prover’s responsibilities, data flow, and interactions with other components. It should also illustrate the key mechanisms and cryptographic processes that enable the Prover to function correctly within the RLN framework. This task is complete when the whitepaper section presents a comprehensive, technically accurate, and publication-ready explanation of the Prover module and its integration with RLN.

Deliverables

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