1 Chai = 1 Dai * Pot.chi
chai is an ERC20 token representing a claim on deposits in the DSR. It can be freely converted to and from dai: the amount of dai claimed by one chai is always increasing, at the Dai Savings Rate. Like any well-behaved token, a user's chai balance won't change unexpectedly, while the chai's value grows day by day.
chai is a very simple contract. Apart from the standard ERC20 functionality, it also implements the same permit off-chain approval as dai itself. You can also call dai(address usr) to check how many dai a given user's chai balance claims. The token has no owner or authority. That's all there is to it.
chai will be deployed on December 1st, and is published here for review and community feedback. If you have suggestions for improvement, submit an issue or join the discussion at the #dev channel on dapphub.chat
This contract is built using dapptools, and follows the standard dapptools procedure for building and testing.
To compile:
$ dapp buildTo run the tests:
$ dapp test