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About the Japan Open Chain Specifications

Japan Open Chain utilizes the Go Ethereum software, an official Ethereum node. For protocol proposals, please refer to the official Ethereum site, and for software requests, please address them in 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 (Provisional)
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 Endpoints directly from commercial applications. For commercial use, set up your own node to connect to Japan Open Chain or utilize nodes provided by node providers or endpoints by Endpoint Providers. Note that these endpoints may change without notice.

Endpoint Services

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

Endpoints are as follows. They are non-commercial as it is a testnet.

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

This is a testnet provided by G.U. Technologies.