Skip to main content

About Japan Open Chain specifications

Japan Open Chain utilizes the Go Ethereum software, one of the official Ethereum nodes. Therefore, if you have a proposal for the protocol, please make your request to the official Ethereum, and if you have a request for the software, please make it at the Go Ethereum repository.

Mainnet

The specifications for the Mainnet are as follows:

Chain Information

Value
Chain NameJapan Open Chain (Mainnet)
Chain Id81
Token NameJapan Open Chain Token
Token SymbolJOC
Hard ForkLondon

Block Explorer

URL(s)
Block Explorerhttps://explorer.japanopenchain.org

RPC Endpoints

Endpoints for non-commercial use are as follows

RPC Endpoint URLs
https://rpc-1.japanopenchain.org:8545
https://rpc-2.japanopenchain.org:8545
https://rpc-3.japanopenchain.org

Please do not use these RPC Endpoint directly from commercial applications. If you are using it commercially, please set up your own node to connect to the Japan Open Chain, or use a node from a node provider or an endpoint from an endpoint provider. Please note that this endpoint may be changed without notice.

Endpoint Services for Commercial Use

Testnet

The specifications for the Testnet are as follows:

Chain Information

Value
Chain NameJapan Open Chain (Testnet)
Chain Id10081
Token NameJapan Open Chain Testnet   
Token SymbolJOCT
Hard ForkLondon    

Block Explorer

URL(s)
Block Explorerhttps://explorer.testnet.japanopenchain.org/

RPC Endpoints

The endpoint is as follows. Please note that this is for testing purposes on the testnet and should not be used for commercial purposes.

RPC Endpoint URLs
https://rpc-1.testnet.japanopenchain.org:8545
https://rpc-2.testnet.japanopenchain.org:8545
https://rpc-3.testnet.japanopenchain.org

G.U.Sandbox Chain

The testnet provided by G.U. Technologies, Inc.