Since 2015, OpenZeppelin has developed deep expertise and set industry standards for secure smart contract development.

This community proposal is for OpenZeppelin to review and audit the current design of the ink! smart contract language, together with Substrate’s smart contracts pallet, in order to recommend actions to be taken and improve the development experience and security of it.

Upon the conclusion of the engagement, OpenZeppelin will deliver a security assessment report.

[Find full proposal here](https://docs.google.com/document/d/1GzQhvDY1jGeb-7_buNBwO4ppL0Siu-kTDktVQVDCg8g/edit?usp=sharing)

 Send a batch of dispatch calls.

 May be called from any origin.

 - `calls`: The calls to be dispatched from the same origin.

 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.

Problem Statement:
- OpenZeppelin is proposing to review and audit the ink! smart contract language and Substrate's smart contracts pallet to improve their development experience and security.

Significance:
- OpenZeppelin has extensive expertise in secure smart contract development, making them well-suited for this review and audit.
- The proposal aims to enhance the security and development experience of the ink! smart contract language and Substrate's smart contracts pallet.

Proposed Solution:
- OpenZeppelin will conduct a thorough review and audit of the ink! smart contract language and Substrate's smart contracts pallet.
- They will provide recommendations for improvements and actions to be taken.

Expected Outcomes:
- OpenZeppelin will deliver a security assessment report detailing their findings and recommendations.

#110 Proposal: ink! design audit by OpenZeppelin