SmartContract to allow users to claim token who has valid merkle proof within a timeframe. When the timeframe is elapsed, only owner can drain the unused tokens to a specific address.
yarn
The Merkle tree is generated for the list of dOrg users who have certain reputations. The amount of token that needs to be generated is calculated based on the amount of reputation(rep) the user holds. Say if the total reputation of dOrg is 10. and if a user has 1 rep. The total token the user can claim is 10%. i,e if total token to distribute is 1000, the user gets 100 tokens.
Merkle tree is generated from the dOrg users fetched from graph.
API - https://api.thegraph.com/subgraphs/name/daostack/v41_11_xdai
{
dao(id: "0x94a587478c83491b13291265581cb983e7feb540") {
name
nativeReputation {
totalSupply
}
avatarContract {
name
balance
}
reputationHolders {
balance
address
}
}
}
This info is used to generate merkle tree. You can find the code under scripts/generate-merkle-root.ts.
To print the merkle tree use the below command by passing the amount of token.
ts-node scripts/print-merkle-tree.ts <amount of token>
ts-node scripts/print-merkle-tree.ts 3000000000000000000
This generates a json file under output/distribution.json. Sample distribution.json looks like this.
{
"merkleRoot": "0x0441837aae9b82c2fde283340baf7f7a70d08391dee7381eeb1af3b21f613055",
"tokenTotal": "3000000000000000000",
"claims": [
{
"index": 0,
"address": "0x2c1929EE38950843211d1b22C31Ac18F5b23e0c0",
"amount": "999999999999999999",
"nodeHash": "0x186c3864333edd6383ee640de2d5bacb2a68b6c94dbaf1e394eb782769c1164f",
"proof": [
"0xff903af3ea602b05f4b30d4844f289bdf977b66a9f986be89e366c29dcb9aa79"
]
},
{
"index": 1,
"address": "0xd001c8ADAbf28128845f18871CE1346EC078eE92",
"amount": "999999999999999999",
"nodeHash": "0xff903af3ea602b05f4b30d4844f289bdf977b66a9f986be89e366c29dcb9aa79",
"proof": [
"0x186c3864333edd6383ee640de2d5bacb2a68b6c94dbaf1e394eb782769c1164f"
]
}
]
}
npx hardhat run scripts/deploy.ts --network ropsten
Demo
