Skip to main content

About Japan Open Chain

Ethereum-compatible blockchain infrastructure operated by Japanese companies and ideal for business use. JOC prioritizes legal and technical practicality and provides a safe, secure, and cost-effective use for anyone worldwide to use with confidence.

Current Blockchain

While the utility of blockchain, the fundamental technology behind web3, has been recognized, there are still various issues and the practical societal implementation has not progressed significantly yet.

  • Safety Issue

    A public chain with numerous unspecified operators carries risks such as hacking and hard forks.

  • Slow & Expensive

    Some chains have the drawback of slow processing speeds and high transaction fees.

  • Impractical

    Due to the lack of clarity regarding the operators and responsibility of the chain, there are legal and technical uncertainties.

  • Inconvenient

    The use of cryptocurrencies for value exchange on the blockchain carries the risk of complexity in acquisition methods and price fluctuations.

What Sets JOC Apart from

JOC aims to address these issues and promote the societal implementation of blockchain technology.

  • High Security

    Validators are trusted Japanese companies. It adopts a PoA (Proof of Authority) method and operates under Japanese laws as a public chain.

  • Fast & Low-Cost

    By adopting PoA method, JOC achieves transaction speeds that are tens to hundreds of times faster than Ethereum, and the transaction fee for one token is less than 1 JPY, making it both fast and affordable to use.

  • Best for Business

    Designed with a balance between practical business requirements and technical challenges in mind, this blockchain is predicated on operation within the politically and legally stable environment of Japan.

  • Stable & Useful

    For stablecoins issued by financial institutions, there are expectations of web3 payments and transfers without the need for cryptocurrencies, as well as significant cost reductions and speed enhancements in transactions.

Start societal implementation through all types of business in JOC

  • Finance

    Stablecoin Issued by Financial Institution

    JOC, in collaboration with its validator G.U.Technologies and Japanese financial institutions, is advancing system development and pilot testing for the issuance of stablecoins, ensuring compliance with legal requirements. Given their cost and speed advantages over cash transactions, stablecoins are anticipated to gain traction as a payment method for inter-company settlements and international transfers.

  • Regional Revitalization

    Regional revitalization project utilizing NFTs.

    Ishikawa Prefecture's Kaga City has introduced the "e-Kaga City Resident System" through a pilot project aimed at increasing the population of individuals related to Kaga City. They have issued an original NFT called the "e-Kaga City Resident Card" on the JOC platform. We will continue to operate collaboratively with Japanese companies under Japanese laws and regulations as the ideal blockchain infrastructure for regional development projects that local governments and businesses can work on.

  • Telecommunication

    Safely and stably operating blockchain nodes, contributing to the efficiency and security of the entire blockchain network. Also venturing into providing decentralized identity (DID) management and authentication services.

  • Manufacture

    Leveraging blockchain technology, seamless collaboration among various suppliers with distinct databases, promoting high immutability, and anticipating substantial productivity improvements.

  • Distribution

    Recording all transactions within the supply chain, including those related to food and clothing, as verifiable information on the blockchain, ensures the provision of trustworthy products to consumers.

  • Game & Entertainment

    In the gaming industry, new gaming experiences are anticipated, such as the ability to use and trade items across different games. In the entertainment sector, NFTs are being offered for various purposes, ranging from trading cards to fan communities and event tickets.

  • Marketing

    To deepen engagement with customers and fans who own our NFTs, initiatives can be implemented, as well as targeting new younger customers. These strategies can also be harnessed with analytical tools and hold promise as a new marketing channel.

  • Blockchain technology can be applied across various industries. G.U.Technologies, one of the validators on JOC, is eager to offer advisory services to companies interested in leveraging blockchain technology for their businesses.

JOC Roadmap

  • PHASE 0


  • PHASE 1

    Testnet Operation

  • PHASE 2

    Mainnet Launch

  • PHASE 3

    Public Release
    Ecosystem Expansio

  • PHASE 4

    Enhanced Stability

JOC Native Token

JOC Native Token is utilized as a fee token which is essential for the operation of Japan Open Chain, and also functions both as a service fee within the network and as rewards for validators.

  • How It Works

    JOC native token is utilized in all transactions on JOC chain. Additionally, it is paid as a fee when validators authenticate transactions.

  • Legal Position

    This falls under the category of "Item 1 Cryptoassets" as defined in Article 2, Paragraph 5, Item 1 of the amended Order for Enforcement of the Payment Services Act in Japan.

  • Token Specification

    Designed as a native token for blockchain transactions, it conforms to Ethereum protocol standard.

About IEO

IEO (Initial Exchange Offering) is a method used by blockchain projects to raise funds. We plan to launch IEO in 2024, and you will have the opportunity to  get and use JOC token.

This token is currently not available for purchase or sale to anyone within Japan until it goes through the Initial Exchange Offering (IEO)
process with a registered cryptocurrency exchange approved by the Financial Services Agency (FSA).

JOC Founder

  • Daimei Inaba

    After a corporate account manager at a major commercial bank, he took on roles at Japan Risk Data Bank Co., Ltd. as the Vice President and Representative Director. He was responsible for developing credit risk models and AI, as well as planning and developing solutions for banks. In 2020, he founded G.U. Technologies Inc. and assumed the position of CEO.

  • Hidekazu Kondo

    After working at Sony Corporation, he founded Lunascape Corporation, a provider of web browser services. In 2020, he founded G.U. Technologies Inc. and assumed the position of CTO. He was recognized as a Super Creator under the IPA Exploratory Software Creation Project in 2004 and was selected as one of the "100 People to Rebuild Japan" by AERA magazine in 2011.