This proposal updates the whitelist with the new MRENCLAVE which you can verify against our release 0.15.8 / docker image
<a href="https://github.com/integritee-network/worker/releases/tag/v0.15.12">https://github.com/integritee-network/worker/releases/tag/v0.15.12</a>
The purpose of this teeracle is to regularly fetch the TEER exchange rate from coingecko and coinmarketcap and write it to our chain. Learn more in our blog article:
<a href="https://medium.com/integritee/introducing-integritees-teeracle-a-framework-to-build-tee-based-oracles-f54c5957e83d">https://medium.com/integritee/introducing-integritees-teeracle-a-framework-to-build-tee-based-oracles-f54c5957e83d</a>

This proposal updates the whitelist with the new MRENCLAVE which you can verify against our release 0.15.8 / docker image

[https://github.com/integritee-network/worker/releases/tag/v0.15.12](https://github.com/integritee-network/worker/releases/tag/v0.15.12)

The purpose of this teeracle is to regularly fetch the TEER exchange rate from coingecko and coinmarketcap and write it to our chain. Learn more in our blog article:

[https://medium.com/integritee/introducing-integritees-teeracle-a-framework-to-build-tee-based-oracles-f54c5957e83d](https://medium.com/integritee/introducing-integritees-teeracle-a-framework-to-build-tee-based-oracles-f54c5957e83d)

This project's goal is to create a new metadata protocol friendly to offline devices and implement it in the most critical tools available: Ledger and Kampela, as well as create tools to port it to other wallets and key management devices, including Polkadot Vault. This will involve changing the runtime code to support a new method of transaction signing that would include a proof of metadata used for transaction rendering to the user.

Schedule a majority-carries referendum to be tabled next once it is legal to schedule
an external referendum.

The dispatch of this call must be `ExternalMajorityOrigin`.

- `proposal_hash`: The preimage hash of the proposal.

Unlike `external_propose`, blacklisting has no effect on this and it may replace a
pre-scheduled `external_propose` call.

Weight: `O(1)`

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.

- **Problem Statement:** Updating the whitelist with the new MRENCLAVE for verification against release 0.15.8 / docker image.
- **Significance:** Ensuring accurate TEER exchange rate updates from coingecko and coinmarketcap to be recorded on the chain.
- **Proposed Solution:** Implementing the teeracle to fetch and write TEER exchange rates regularly.
- **Expected Outcomes:** Improved accuracy in TEER exchange rate updates on the chain.

#62 Whitelist Teeracle 0.15.12

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