Sorry for the mess...
CoinvestToken.sol => V3truffle.jsCashToken.sol => CashTruffle.js
Investment.sol, Bank.sol, and UserData.sol => investment.js
(Old Coinvest Token is CoinvestTokenV2.sol => ERC865.js) 1. All fingerprinting of transactions is now done in transaction hash as opposed to signatures. Hash is found in each pre-signed transaction and saved in the same way signatures were.
2. SignatureRedeemed event changed to HashRedeemed event.
3. address(this) added to the hashing in the getRevokeHash function.
4. Error notes added to reverts.
5. approveAndCallPreSigned now only executes an approve if value is > 0. This is to allow other contracts to be called using the token’s pre-signed functionality without going through the approve function.
6. Gas transfers now send to tx.origin instead of msg.sender.
7. Fallback function and related functions were removed to simplify the token as much as possible.
8. ValidPayload was removed for the same reason.
CASH is simply V3 copy-pasted but with a mint function and burn function and events added for the owner (and of course the name/symbol is changed). It’s essentially our version of tether but using gold instead of USD. The truffles are also identical besides added mint and burn function testing for CASH. Total supply is the same as COIN for testing but will be changed (or just burned) to whatever is needed upon launch. Requirements:
1. Must modify UserData contract on a buy or sell by Oraclizing the current crypto price from cryptocompare.
2. Must be able to purchase assets with either COIN or CASH.
3. Must be able to be updated—we’re using modularization for this by creating the permanent contracts as simple as possible.
4. Must be able to exchange COIN for CASH when either is bought individually.
5. Must allow inverse purchases of cryptos. This is essentially the same as shorting but simply acts as another crypto that is always equal to 1/regular crypto (e.g. IBTC = 1/BTC).