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 deploy your own Deposit UI with the updated config files
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://blockscout.com/gnosis/chiado |
| Execution Layer Explorer | https://blockscout.chiadochain.net |
| 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://gnosisfaucet.com |
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
Staking Token 1
To mimic Ethereum-Gnosis conditions, Chiado uses a "Testnet GNO" token that is issued on Goerli and bridged over via the AMB.
| Token | Address |
|---|---|
| Testnet GNO on Goerli | 0x7f477c3f03213970d939104cc436dc995cf615b5 |
| Testnet GNO on Chiado | 0x19C653Da7c37c66208fbfbE8908A5051B57b4C70 |
| Testnet mGNO on Chiado | 0xc5be8bf53755a41c2385e7aa86f6a9e28746f466 |
| Deposit Contract | 0xb97036A26259B7147018913bD58a774cf91acf25 |
Network Config
Config Repo
Gnosis maintains a Configs Repo that is the canonical source for Gnosis Chain networks.
Consensus Layer
Execution Layer
Key Contracts
Bridges 2
Using the Tokenbridge nomenclature, Home refers to Chiado while Foreign refers to Goerli
| Contract | Address |
|---|---|
| Governance Safes | |
| Governance Safe Chiado | 0x0Ad7de9064BAA98892a244e1415Ca8a2766096D2 |
| Governance Safe Goerli | 0xf02796C7B84F10Fa866DAa7d5701A95f3131A727 |
| Native Bridge | |
| Chiado TokenBridge | 0xbb3c86f9918C3C1d83668fA84e79E876d147fFf2 |
| Chiado ValidatorsProxy | 0x0ee7EBC72b26e8CeAbbdF275A19dA8e4361685Ce |
| Goerli TokenBridge | 0x8659Cf2273438f9b5C1Eb367Def45007a7A16a24 |
| Goerli ValidatorsProxy | 0x1F35121d14ABC91689a7903bf911dce83B0c6EF6 |
| AMB & Omnibridge | |
| Chiado Omnibridge Mediator | 0x09D549a48AC52F3f9945E7de6402c609c92aa2E1 |
| Chiado AMB | 0x99Ca51a3534785ED619f46A79C7Ad65Fa8d85e7a |
| Goerli Omnibridge Mediator | 0x00147c84f13764dCDAbAF1cbAe622fa6f6839085 |
| Goerli AMB | 0x87A19d769D875964E9Cd41dDBfc397B2543764E |
| Bridge Validators | |
| Gnosis DAO | 0xc9ADb79B8A6e7C6e90c765A3B4d16d81213c9D49 |
| Bootnode | TBD |
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.
Chiado 0.1
TODO