About the Japan Open Chain Specifications
With the Tokyo Hardfork, the consensus mechanism and the Hard Fork value for Testnet have changed. See Tokyo Hardfork for details.
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 Name | Japan Open Chain (Mainnet) |
| Chain Id | 81 |
| Token Name | Japan Open Chain Token (Provisional) |
| Token Symbol | JOC |
| Hard Fork | London |
Block Explorer
| URL(s) | |
|---|---|
| Block Explorer | https://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
- Examples of endpoint providing services:
Testnet
The specifications for the testnet are as follows:
Chain Information
| Value | |
|---|---|
| Chain Name | Japan Open Chain (Testnet) |
| Chain Id | 10081 |
| Token Name | Japan Open Chain Testnet |
| Token Symbol | JOCT |
| Hard Fork | London |
Block Explorer
| URL(s) | |
|---|---|
| Block Explorer | https://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.