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Ho

PROFILE

Ho

Fan contributed to the scroll-tech/scroll repository by engineering robust backend systems for zero-knowledge proof workflows and rollup infrastructure. Over five months, Fan delivered features such as dynamic prover asset loading, end-to-end rollup integration testing, and multi-fork verification support, focusing on reliability and upgradeability. Using Go and Rust, Fan refactored coordinator and prover components to support universal task orchestration, improved compatibility across hard fork phases, and enhanced performance monitoring. Fan also addressed build and compatibility issues, modernized CI/CD pipelines, and managed complex dependency upgrades, demonstrating depth in distributed systems, version control, and cross-language integration to ensure stable, scalable deployments.

Overall Statistics

Feature vs Bugs

78%Features

Repository Contributions

13Total
Bugs
2
Commits
13
Features
7
Lines of code
50,706
Activity Months5

Work History

October 2025

1 Commits

Oct 1, 2025

October 2025: Delivered a Prover-Coordinator Compatibility Update for the scroll-tech/scroll repository, addressing backward compatibility with older prover versions and upgrading dependencies to 4.6.1. This upgrade improves stability and interoperability with the Scroll coordinator, reduces cross-version integration risk, and sets the foundation for future prover-version migrations across the ecosystem.

September 2025

4 Commits • 3 Features

Sep 1, 2025

September 2025 performance summary for scroll-tech/scroll. The team delivered three major capabilities in the scroll project: (1) ZKVM upgrade to v0.6 with OpenVM 1.4, updating dependencies (alloy, revm, openvm) to boost cryptographic strength and execution capabilities; (2) Prover compatibility and version tooling, including updates to a newer zkvm-prover commit and enhanced version-detection tooling (parsing Cargo.lock) with a new Makefile version target; (3) End-to-end Rollup integration test tooling, introducing an integration test tool for end-to-end testing of the rollup system, including data import into the database and setup scripts to facilitate local testing of coordinator and prover components. In addition, bug fixes strengthened compatibility with the current prover (pre-0.5.6) and added a script to detect plonky3gpu version to reduce upgrade risk. These changes were implemented via commits: 1098876183d42e271663cfd3a55a4699ad317931; a5a7844646689998e4301f96089cb6a92a80085e; c11e0283e8596076bcf2aefb0b1fd58f99bb8f37; 3b323198dcfb77605227c648f0cf2069d9b8f43d.

August 2025

1 Commits • 1 Features

Aug 1, 2025

August 2025 monthly summary for scroll-tech/scroll. Key feature delivered: Dynamic Prover Asset Loading with Performance Metrics. Implemented dynamic loading of prover assets (circuits) across hard fork phases, refactored prover configuration to fetch assets from URLs, and updated the coordinator to manage dynamic asset loads. Added comprehensive performance metrics for prover operations and updated dependencies to enable these capabilities. No critical bugs reported this month.

July 2025

4 Commits • 1 Features

Jul 1, 2025

Concise monthly summary for 2025-07 focusing on business value and technical achievements for the scroll-tech/scroll repository. Key features delivered: - Feynman release upgrade: Upgraded zkVM prover and Scroll crates to the Feynman fork, upgraded the Feynman client, and refreshed CI/CD workflows and scripts to support new circuit/verifier configurations. Major bugs fixed: - GPU image build fix: Resolved a GPU image build failure by removing the problematic update target from the Makefile and ensuring the prover target compiles. Overall impact and accomplishments: - Enabled smoother production releases with better compatibility for new circuit/verifier configurations, and improved CI reliability, reducing pipeline friction and build-time failures. Technologies/skills demonstrated: - Dependency/version management across a multi-crate workspace, CI/CD workflow modernization, Makefile/build debugging, and GPU image troubleshooting.

June 2025

3 Commits • 2 Features

Jun 1, 2025

June 2025 focused on expanding prover task orchestration and tightening verification flows. Delivered universal prover task support in the coordinator, refactored task assignment logic, and enabled end-to-end proof generation with metadata management. Strengthened ZKVM prover/verifier with a new verify command and multi-fork verification support, while aligning tooling and dependencies to ensure scalable, secure proof validation.

Activity

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Quality Metrics

Correctness80.8%
Maintainability80.0%
Architecture77.8%
Performance66.2%
AI Usage20.0%

Skills & Technologies

Programming Languages

CDockerfileGoJSONMakefileRustSQLShellTOMLYAML

Technical Skills

API DesignAPI DevelopmentAPI IntegrationBackend DevelopmentBlockchain DevelopmentBuild System ManagementBuild SystemsCCI/CDCI/CD ConfigurationCircuit VerificationCloud IntegrationConfiguration ManagementCoordinatorCross-language Integration

Repositories Contributed To

1 repo

Overview of all repositories you've contributed to across your timeline

scroll-tech/scroll

Jun 2025 Oct 2025
5 Months active

Languages Used

DockerfileGoMakefileRustShellTOMLYAMLJSON

Technical Skills

API DevelopmentBuild System ManagementCI/CDCI/CD ConfigurationConfiguration ManagementCoordinator

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