# xDai Chain

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The ARTIS 1.0 network will be stopped in April 2022. 
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### Technical Base Layer

|                                | ARTIS 1.0                                         | xDai Chain                                                             |
| ------------------------------ | ------------------------------------------------- | ---------------------------------------------------------------------- |
| 1: Compatibility with Ethereum | 100%                                              | 100%                                                                   |
| 2: Chain Type                  | Sisterchain (ATS)                                 | Sidechain (xDAI)                                                       |
| 3: Token Structure             | Single token (ATS)                                | Dual token (xDAI \| STAKE)                                             |
| 4: Interoperability            | TokenBridge                                       | TokenBridge + OmniBridge                                               |
| 5: Staking                     | PoS for Validators, dPOS on Roadmap for ARTIS 2.0 | <p>Phase 1: PoS for selected delegators</p><p>Phase 2: Public dPoS</p> |
| 6: Staking Token               | ATS                                               | STAKE                                                                  |
| 7: Mainnet Launch              | Nov. 14, 2018                                     | Oct. 8, 2018                                                           |
| 8: Block Time                  | 5 sec.                                            | 5 sec.                                                                 |
| 9: TPS                         | 135 (standard transactions)                       | 70 (reported)                                                          |
| 10: Metatransactions           | Yes                                               | Yes                                                                    |
| 11: Randomness                 | Roadmap for ARTIS 2.0                             | Within the protocol                                                    |
| 12: Consensus                  | AuRa, Roadmap towards HBBFT for ARTIS 2.0         | AuRa, Roadmap towards HBBFT                                            |

ARTIS 1.0 and xDai Chain are very similar on the infrastructure layer. The biggest difference is the use of a single token structure in ARTIS vs. a dual token structure in xDai Chain and the use of the stable token Dai as the native coin in xDai.&#x20;

The use of a stable coin like xDai has the advantage of a better predictability of transaction fees calculated in Dollar, but it also creates additional friction to get xDai in the first place.

ATS follows the logic of a triple point asset, as it was coined by [Bankless](http://podcast.banklesshq.com/4-ether-the-triple-point-asset). It is a commodity (pay transaction fees), a store-of-value (scarce resource) and a capital asset (needed for staking). &#x20;

Performance wise these two chains are basically equal.&#x20;

### Operation & Governance

|                            | ARTIS 1.0  | xDai Chain |
| -------------------------- | ---------- | ---------- |
| Number of Validators nodes | 8          | 12         |
| Governance through         | Validators | Validators |

### Tokenomics

|                                    | ARTIS 1.0                                               | xDai Chain                                           |
| ---------------------------------- | ------------------------------------------------------- | ---------------------------------------------------- |
| Total Supply                       | 300m ATS + 6,307,200 ATS yearly block rewards           | 8,765,000 STAKE (capped)                             |
| Circulating Supply (Oct. 11, 2020) | 311,790,000 ATS                                         | 2,926,000 STAKE                                      |
| Emission                           | 1 ATS / block                                           | via Easystaking and PoS + dPoS Rewards               |
| Inflation                          | 2.1% p.a                                                | max. 15% p.a                                         |
| Validator / Delegator Stake        | <p>4.5m ATS Validator</p><p>delegation in ARTIS 2.0</p> | <p>20k STAKE Validator</p><p>1k STAKE Delegator </p> |