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Yujin Choi

PROFILE

Yujin Choi

Over a three-month period, this developer integrated The Jay Network into the Cosmos ecosystem, focusing on asset registration, cross-chain interoperability, and branding across multiple repositories including cosmos/chain-registry and cosmostation/chainlist. They delivered production-ready onboarding by implementing IBC channel support, updating API endpoints, and ensuring schema compliance using JavaScript and JSON. Their work included optimizing asset metadata, configuring explorer URLs, and aligning chain parameters for seamless wallet integration. By adding branded assets and supporting IBC transfers for tokens like ATOM and INJ, they improved both technical reliability and user experience, demonstrating depth in API development, blockchain integration, and UI design.

Overall Statistics

Feature vs Bugs

86%Features

Repository Contributions

11Total
Bugs
1
Commits
11
Features
6
Lines of code
743
Activity Months3

Work History

June 2026

5 Commits • 3 Features

Jun 1, 2026

June 2026 monthly summary focusing on delivering cross-chain asset support, onboarding, and branding across Cosmos repos, with emphasis on business value and technical execution. No major defects reported this month; all work comprises feature-driven improvements and alignment across repos to enable production-ready IBC transfers for The Jay Network.

May 2026

5 Commits • 2 Features

May 1, 2026

May 2026 monthly summary: Implemented cross-chain interoperability updates for The Jay Network in the Cosmos Chain Registry, including IBC channel integrations, updated chain information, and robust API endpoints. Upgraded release binaries to v1.1.0 to align with CosmWasm and ensure isomorphic state handling, and verified all endpoints return HTTP 200 (including corrected genesis URL and restored binaries). In Keplr Chain Registry, added The Jay Network configuration, branding assets (logo), and token branding support (coinImageUrl); completed wallet validation after RPC endpoint fixes to ensure ongoing compatibility. Pre-staged nginx-backed rpc/grpc subdomains are ready for DNS enablement in a follow-up PR. Overall, these changes improve cross-chain onboarding, reliability, and brand visibility for The Jay Network, delivering measurable business value through faster integration and a better developer and user experience.

March 2026

1 Commits • 1 Features

Mar 1, 2026

March 2026: Delivered The Jay Network integration into cosmos/chain-registry, enabling rapid onboarding of a new Cosmos ecosystem chain with asset registration and compliant metadata. Key deliveries included adding The Jay Network (thejaynetwork-1) chain and asset registration (Cosmos SDK v0.53.6, ujay denom, yjay prefix), logo assets, and extensive chain/assetlist schema compliance updates. Implemented required fields (chain_type, genesis name, chain description), migrated to structured sdk/ibc/consensus objects, and removed deprecated fields. Optimized assets (PNG only, 512x512, ~153KB) and updated explorer/API URLs to HTTPS (jayscan.duckdns.org). These changes establish production-ready data quality, improved interoperability, and secure access for cross-chain interactions.

Activity

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Quality Metrics

Correctness100.0%
Maintainability96.4%
Architecture100.0%
Performance96.4%
AI Usage21.8%

Skills & Technologies

Programming Languages

JSONJavaScriptNoneSVG

Technical Skills

API developmentAPI integrationCosmos SDKUI designasset managementblockchain developmentbrandingconfiguration managementdata modelingdata structuringfull stack developmentgraphic designinter-blockchain communicationinter-blockchain communication (IBC)user interface design

Repositories Contributed To

3 repos

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

chainapsis/keplr-chain-registry

May 2026 May 2026
1 Month active

Languages Used

JSONJavaScriptSVG

Technical Skills

API integrationblockchain developmentbrandingconfiguration managementfull stack developmentgraphic design

cosmostation/chainlist

Jun 2026 Jun 2026
1 Month active

Languages Used

JSONNoneSVG

Technical Skills

API integrationUI designblockchain developmentbrandingdata modelingdata structuring

cosmos/chain-registry

Mar 2026 Jun 2026
3 Months active

Languages Used

JSON

Technical Skills

API integrationCosmos SDKblockchain developmentAPI developmentinter-blockchain communication (IBC)asset management