Chiado (Testnet)
Image: Trams in Lisbon (credit: Lisa Fotios)
Overview
Purpose
- Chiado is a Gnosis testnet that was launched in October 2022
- Chiado's primary purpose is to be a long-lived testnet with tooling for developers
- Chiado's secondary purpose was to test "The Merge", Gnosis' transition from Proof-of-Authority to the Beacon Chain.
- Chiado is named after the Chiado metro station in Lisbon, Portugal.
Validators
- Chiado is optimized for testnet stability for developers, and has a semi-permissioned validator set similar to Ethereum's Sepolia testnet
- Chiado is not intended for broad public validator participation, as frequent cycling of validators affect Testnet stability and make it unreliable for developers (e.g. Ethereum's Prater testnet)
- Chiado validators are run by core contributor teams at Nethermind, Gateway and Gnosis (and possibly more in the future)
- 6,000 validator keys were defined in the genesis of Chiado Beacon Chain for Gateway, Nethermind and Gnosis to run as validators
Public Participation
- Community members can still run a full node and go through the Chiado merge as it happens
- 1,000 Testnet GNO on Chiado may be available in the future for community public validator participation
- Community participation will be limited to 14% of the Chiado Network to ensure network stability
- 1 Testnet GNO is required to run a validator, similar to Gnosis mainnet
- Requests for Chiado participation keys can be made in the #chiado-testnet channel in Discord
How to Participate
- Running a Chiado node with Nethermind Sedge
- (Here by Dragons): If you can get your hands on Testnet GNO on Chiado, you will need to interact with the deposit contract programmatically, or follow the Chiado deposit instructions
Summary
Key Infra
| Network Name | Chiado |
|---|---|
| Native (fee) token | Testnet xDai on Chiado |
| Staking token | Testnet GNO on Chiado |
| Chain ID | 10200 |
| Execution Layer RPC (archive) | https://rpc.chiado.gnosis.gateway.fm |
| Execution Layer RPC | https://rpc.chiadochain.net |
| Execution Layer RPC (WS) | wss://rpc.chiadochain.net/wss |
| Execution Layer Explorer | https://gnosis-chiado.blockscout.com/ |
| Consensus Layer Explorer | https://beacon.chiadochain.net |
| Beacon Checkpoint Sync | https://checkpoint.chiadochain.net |
| Fork monitor | https://forkmon.chiadochain.net |
| EthStats | https://ethstats.chiadochain.net |
| Faucet | https://faucet.gnosischain.com/?chain=chiado |
Key Parameters
| Param | Value |
|---|---|
| Slot Time | 5s |
| Epoch | 16 slots |
| Finalization Time | 2.7 min |
| Staking Deposit | 1 Testnet GNO on Chiado |
Native Tokens
Fee Token
- Name: Testnet xDai on Chiado
- Type: Native Asset
You can find a list of contract addresses for Chiado tokens in the Useful Addresses page.
Network Config
Config Repo
Gnosis maintains a Configs Repo that is the canonical source for Gnosis Chain networks.
Consensus Layer
Execution Layer
DApps
| DApp | |
|---|---|
| Uniswap | TBD |
| Chainlink | TBD |
Previous Iterations
Chiado 0.2
Chiado was previously launched with network ID 100100. Soon after launch, the network entered a forked state. The root causes were identified and fixed as part of the Chiado relaunch.
Appendix
[1]: See Github Issue on Testnet GNO on Chiado Staking Contracts