Token Wrapper is an Aragon app offering a checkpointed ERC20 token interface that is usable in Aragon Voting applications. Its purpose is to bridge external, "vanilla" ERC20 tokens to a checkpointed token.
Token holders of the outside token have the ability to wrap and unwrap their tokens to gain or decrease balance in this wrapped token.
The TokenWrapper contract was last professionally audited in 2020-01.
This is a forked version with changes in the contract, we are awaiting another professional review.
In efforts to save gas costs and space to introduce the checkpointing, token amounts are limited to uint192. This should not pose a problem for any token, but as uint192 supports a very large range of numbers, but the TokenWrapper will stop accepting deposits once if it hits 2^192 - 1.
You can use the following script in an EVMcrispr terminal.
connect <dao> (
# The first step is to install the Token Wrapper into your DAO:
install blossom-token-wrapper.open:new <token address> <wrapped token name> <wrapped token symbol>
# Then, create a new Voting app instance powered by your Token Wrapper:
install voting:new blossom-token-wrapper.open:new 50e16 15e16 7d
# Next, create a permission for the TokenWrapper
exec acl createPermission ANY_ENTITY blossom-token-wrapper.open:new @id(DUMMY_ROLE) voting:new
# And finally, create a permission for the new Voting app instance
grant ANY_ENTITY voting:new CREATE_VOTES_ROLE voting:new
)
The token address is the address of the ERC20 token you would like to "wrap" into an organizational token.
When you execute the script, you should be able to view the Token Wrapper app in the Aragon client. You can try it out by wrapping one of your tokens.
The voting install command above uses the following voting parameters, use your own:
50e16or500000000000000000: 50% minimum support15e16or150000000000000000: 15% minimum approval7dor604800: Voting period of 7 days (604800 seconds)