Ethereum

Introducing ethers-i18n: Multilingual Error Messages for ethers.js

The Problem When building dApps with ethers.js, error messages are always in English: Error: insufficient funds for intrinsic transaction cost While developers understand these messages, they aren’t user-friendly — especially for non-English-speaking end users. Translating ethers.js error messages manually in every project leads to duplicated effort and inconsistent quality. ethers-i18n solves this by providing a lightweight i18n plugin for ethers.js error messages. https://github.com/nakamura196/ethers-i18n What is ethers-i18n? ethers-i18n provides localized translations for ethers.js v6 error codes. It currently supports 4 languages: English, Japanese, Korean, and Chinese. ...

March 3, 2026 · 4 min · Nakamura

I Created a Japanese Tutorial for ethers.js v6

Introduction I created a Japanese tutorial for ethers.js, a JavaScript library for Ethereum. https://github.com/nakamura196/ethers-ja-tutorial It is also published as a static site using VitePress. https://nakamura196.github.io/ethers-ja-tutorial/ Background ethers.js is one of the most widely used libraries in Ethereum development. Japanese articles about v6 were mostly focused on migration guides from v5, and there was no systematic tutorial for beginners to learn from scratch. Since the official documentation is only available in English, I created a tutorial that allows learners to study the basics step by step in Japanese. ...

February 25, 2026 · Updated: February 25, 2026 · 2 min · Nakamura

Prototyping a Digital Cultural Heritage Management System Using Blockchain and Pinata IPFS

Notice: 2025-06-14 The development progress is summarized at the following link. https://zenn.dev/nakamura196/books/41693d2d017082 Overview As part of learning blockchain technology, I created a prototype management system for digital cultural heritage. Since the purpose is learning blockchain, there are many missing features, but I plan to add and improve them in the future. https://digital-heritage-five.vercel.app/ Technologies Used The Ethereum Sepolia network is used. Since the purpose is blockchain learning and prototype development, a test network is used. Pinata is used as the hosting service for the distributed file storage IPFS. https://pinata.cloud/ ...

June 12, 2025 · Updated: June 12, 2025 · 3 min · Nakamura