
Thanks to the Polkadot ecosystem's Interoperability and cross-consensus messaging through the Polkadot <> Kusama trustless bridge, DOT can be accessed directly on Kusama. When creating this post, there are around 4900+ DOT on Kusama. You can query the chain state to get the accurate number.

It is possible to send DOT to Kusama Treasury and access it through Kusama OpenGov. For the treasury tracks on Kusama to work as expected, a proper spend limits in terms of DOT need to be set. For this purpose, the asset rate parameter is used. For instance, DOT/USDC/USDT conversion rates were set on Polkadot through [referendum 645](https://polkadot.subscan.io/referenda_v2/645?tab=preimage&focus=post), which allowed for Polkadot OpenGov to spend USDT/USDC directly through its treasury tracks.
![DOT on Kusama](https://i.ibb.co/ns9n8dXs/mdx-Editor-Radha-1746308625297.png)
It is worth noting that the current asset rate for DOT/USDC and DOT/USDT on Polkadot is 1 DOT = 10 USDC/T. This should not be confused as the actual exchange rate of the assets. Instead, the asset rate just applies this factor to adhere to spend limits. This rate can be adjusted through governance if the actual rate diverges too much.

In that light, the asset rate of 1 KSM = 4 DOT is reasonable to set, which translates to an asset rate of 25. We understand it is a bit counter intuitive. Please check the explanation below which converts assets into the smallest units (plancks) represnted on-chain:

- 1 KSM = 1000,000,000,000 (hence KSM token has 12 decimals)
- 1 DOT = 10,000,000,000 (hence DOT token has 10 decimals)
- 4 DOT = 40,000,000,000 when multiplied by 25 results in 1000,000,000,000 units which are interpreted as 1 KSM by Kusama OpenGov treasury tracks

This referendums sets asset rate for both XCM V3 and V4 locations for DOT through a batch call




Send a batch of dispatch calls.

May be called from any origin except `None`.

- `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 the calls are dispatched without checking origin filter. (This
includes bypassing `frame_system::Config::BaseCallFilter`).

## Complexity
- O(C) where C is the number of calls to be batched.

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.

#521 Set Asset rate for DOT/KSM to enable treasury spends of DOT through Kusama OpenGov

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