# View Change (VC) Configuration & Operations

To initiate and manage a View Change (VC) process on the network, follow these structured setup steps. 

Each step configures key parameters and actions required for VC operations.

### Setup Instructions

1\. Set Cost for VC Transaction

```bash
./zwallet mn-update-config --keys 'cost.vc_add' --values 361
```

2\. Enable View Change in Global Configs

```bash
./zwallet global-update-config --keys 'server_chain.view_change' --values true
```

3\. Configure VC Round Parameters

```bash
./zwallet mn-update-config --keys 'vc_rounds.start,vc_rounds.contribute,vc_rounds.share,vc_rounds.publish,vc_rounds.wait' --values 500,1000,500,1000,1000
```

4\. Set Minimum Miners and Sharders After VC

```bash
./zwallet mn-update-config --keys 'min_n,min_s' --values 87,26
```

5\. Delete Miner or Sharder

```bash
bashCopyEdit./zwallet mn-delete --id <miner_id>
./zwallet sh-delete --id <sharder_id>
```

### Add Miner or Sharder via VC

1. **Deploy Node**
   * Use latest code and latest snapshot.
   * Create a new wallet.
   * Fund wallet with initial balance.
   * Follow the official [miner/sharder registration guide](https://docs.zus.network/as-onboarding) to deploy the node.
2. **Run VC-Add Command**

   ```bash
   ./zwallet vc-add --id <node_id> --provider-type <miner|sharder>
   ```
3. **Wait for Node Addition to Chain**
   * Monitor chain and state.
   * Ensure successful inclusion.

### View Change Process: 5 Phases

<figure><img src="/files/PIeQ72VEe5rKDeUkERD0" alt="" width="375"><figcaption><p>View Change Process</p></figcaption></figure>

{% hint style="success" %}
**Notes**:

* View change only proceeds to the next phase when the current one completes successfully.
* Ensure the **chain is progressing** during the entire VC process.
* If the chain stalls, **do not disable VC**. Investigate and address the issue.
  {% endhint %}

### Key Smart Contract State URLs

| Key                      | URL                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        |
| ------------------------ | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| **AllMinersKey**         | <p><a href="https://sharder1.0chain.net/sharder01/v1/scstate/get?key=6dba10422e368813802877a85039d3985d96760ed844092319743fb3a76712d9fbc5a5a4c8b694246b8bb16abf3d35d8e7a11189cc0d640a016847de96eb968a"><https://sharder1.0chain.net/sharder01/v1/scstate/get?key=6dba10422e368813802877a85039d3985d96760ed844092319743fb3a76712d9fbc5a5a4c8b694246b8bb16abf3d35d8e7a11189cc0d6>.</a></p><p><a href="https://sharder1.0chain.net/sharder01/v1/scstate/get?key=6dba10422e368813802877a85039d3985d96760ed844092319743fb3a76712d9fbc5a5a4c8b694246b8bb16abf3d35d8e7a11189cc0d640a016847de96eb968a">40a016847de96eb968a</a></p> |
| **AllShardersKey**       | [https://sharder1.0chain.net/sharder01/v1/scstate/get?key=6dba10422e368813802877a85039d3985d96760ed844092319743fb3a76712d9b5e8a1650666fdd3a9de7855b6da63ab629b1701f23738477e2325f7ca2150ac](<	https://sharder1.0chain.net/sharder01/v1/scstate/get?key=6dba10422e368813802877a85039d3985d96760ed844092319743fb3a76712d9b5e8a1650666fdd3a9de7855b6da63ab629b1701f23738477e2325f7ca2150ac>)                                                                                                                                                                                                                                  |
| **DKGMinersKey**         | <https://sharder1.0chain.net/sharder01/v1/scstate/get?key=6dba10422e368813802877a85039d3985d96760ed844092319743fb3a76712d9bf25741b28a0c518614ee739b37932aa60f08e40673578ba2b51c83295313cc5>                                                                                                                                                                                                                                                                                                                                                                                                                                |
| **MinersMPKKey**         | <https://sharder1.0chain.net/sharder01/v1/scstate/get?key=6dba10422e368813802877a85039d3985d96760ed844092319743fb3a76712d91fabb2d33b18be1ada37d88b37c474e550063df79dfba436dd77ee60fad41736>                                                                                                                                                                                                                                                                                                                                                                                                                                |
| **MagicBlockKey**        | <https://sharder1.0chain.net/sharder01/v1/scstate/get?key=6dba10422e368813802877a85039d3985d96760ed844092319743fb3a76712d9d2208fe938b7465b9c5dc571053986cf8dbf3585fb36399f98ea569c42f50b76>                                                                                                                                                                                                                                                                                                                                                                                                                                |
| **GlobalNodeKey**        | <https://sharder1.0chain.net/sharder01/v1/scstate/get?key=6dba10422e368813802877a85039d3985d96760ed844092319743fb3a76712d940d85a1f56c74d73247499f628de4475a6995bef32684e91c9df91329f3e9d52>                                                                                                                                                                                                                                                                                                                                                                                                                                |
| **GroupShareOrSignsKey** | <https://sharder1.0chain.net/sharder01/v1/scstate/get?key=6dba10422e368813802877a85039d3985d96760ed844092319743fb3a76712d9e63babd408abff2f9622e20dc956f6f38f524866122321a3181d45b5508240ae>                                                                                                                                                                                                                                                                                                                                                                                                                                |
| **ShardersKeepKey**      | <https://sharder1.0chain.net/sharder01/v1/scstate/get?key=6dba10422e368813802877a85039d3985d96760ed844092319743fb3a76712d994de2ec37e29211c69557292cc78a7194bcd26c34304d9b4690e45d659cb3862>                                                                                                                                                                                                                                                                                                                                                                                                                                |
| **PhaseKey**             | <https://sharder1.0chain.net/sharder01/v1/scstate/get?key=6dba10422e368813802877a85039d3985d96760ed844092319743fb3a76712d982346bd0e627148993afac1457428c436840320acba5e996f8fae6ca9b3b54bd>                                                                                                                                                                                                                                                                                                                                                                                                                                |
| **DeleteMinersKey**      | <https://sharder1.0chain.net/sharder01/v1/scstate/get?key=6dba10422e368813802877a85039d3985d96760ed844092319743fb3a76712d97eedce10df401053add4456541c5aadcc7644c150078435810fa5990a20fae2e>                                                                                                                                                                                                                                                                                                                                                                                                                                |
| **DeleteShardersKey**    | <https://sharder1.0chain.net/sharder01/v1/scstate/get?key=6dba10422e368813802877a85039d3985d96760ed844092319743fb3a76712d9ec6aa81faf0ce0bbcdfbd76014433c9d12ae10552c64ae3b70dc3bcda8a204e7>                                                                                                                                                                                                                                                                                                                                                                                                                                |
| **RegisterMinersKey**    | <https://sharder1.0chain.net/sharder01/v1/scstate/get?key=6dba10422e368813802877a85039d3985d96760ed844092319743fb3a76712d95e6c409eac3d9b2ec0fc0294926c00d91323e9348d30f9a6a0c340272f2c03a4>                                                                                                                                                                                                                                                                                                                                                                                                                                |
| **RegisterShardersKey**  | <https://sharder1.0chain.net/sharder01/v1/scstate/get?key=6dba10422e368813802877a85039d3985d96760ed844092319743fb3a76712d967e5fb97a908fdd92ffe340cb3e39c25194d4c633e7401908f175bea5b76314a>                                                                                                                                                                                                                                                                                                                                                                                                                                |


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