We, BOTLabs GmbH, propose to double the current staking rewards setting. Since the upgrade of most Kusama relay chain clients to Polkadot v0.9.16+ in February 2022, the KILT Spiritnet and other parachains of Kusama have experienced bad block times between 20-23s instead of the targeted 12s.

So far, the situation has not improved significantly despite multiple client upgrades up to Polkadot v0.9.20 of the relaychain. As staking rewards are paid when successfully building a block, collators and delegators have received up to 40-48% less rewards. 

Therefore, we propose to alter the current configuration of our InflationConfig and double the annual reward rates both for collators from 10% to 20% as well as delegators from 8% to 16%. This just compensates the slow block rate and does not increase inflation. Remember that since Januare


**Proposal call breakdown**

We hope that the block production issue will be resolved within the next 3 days. Thus, the proposal consists of a batch call which encapsulates two calls. The first call doubles the current inflation configuration from

* Collator annual reward rate: 20% instead of 10%
* Delegator annual reward rate: 16% instead of 8%

Our inflation configuration uses quintillions to achieve high precision. A quintillion is is 10^18. Thus, 10% = 0.1 * 10^18 = 1 * 10^17 = 100000000000000000, which is exactly what we used in our proposal (see [Subscan](https://spiritnet.subscan.io/democracy_proposal/9)).

The second call schedules an inversion of the first one, e.g., it reverts back to the current reward configuration. It will be executed in 3 months of real time which amounts to roughly 370,286 blocks (= 60s/min * 21 blocks/s * 60 min/h * 24 h/day * 30 days/month * 3 months`). In summary, the schedule executes at block 1,728,456 = 1,368,170 (2 blocks after proposal) +  370,286.

Send a batch of dispatch calls.

May be called from any origin.

- `calls`: The calls to be dispatched from the same origin. The number of call must not
  exceed the constant: `batched_calls_limit` (available in constant metadata).

If origin is root then call are dispatch without checking origin filter. (This includes
bypassing `frame_system::Config::BaseCallFilter`).

# <weight>
- Complexity: O(C) where C is the number of calls to be batched.
# </weight>

This will return `Ok` in all circumstances. To determine the success of the batch, an
event is deposited. If a call failed and the batch was interrupted, then the
`BatchInterrupted` event is deposited, along with the number of successful calls made
and the error of the failed call. If all were successful, then the `BatchCompleted`
event is deposited.

- The proposal is to double the rewards for collators and delegators because the block times have been slower than expected.
- The proposal uses a batch call to make the changes.
- The first call doubles the current reward rates.
- The second call schedules a change back to the current reward rates in 3 months.
- The proposal will be executed at a specific block number.

#14 Double Staking Rewards