Pindrop

Unlock Inc. wants to airdrop UDT tokens to anyone who has contributed to the protocol before September 1st 2021. However we are building a claim mechanism that will require users to delegate their tokens if they want to claim them.

Rules are the following:

• every token holder at block 13136426 who owns more than 3 UDT will receive 1 UDT
• every user who has deployed 1 lock will receive 3 UDT per lock they deployed
• every user who has purchased 1 key will receive 1 UDT per key purchased

Extracting recipient addresses

Mainnet:

Use the index.js script with the following params:

const providerUrl = "https://eth-mainnet.alchemyapi.io/v2/6idtzGwDtRbzil3s6QbYHr2Q_WBfn100"
const unlockAddress = "0x3d5409cce1d45233de1d4ebdee74b8e004abdd13"
const maxBlocks = 100000000 // No block limit!
const startBlock = Math.floor(7120796/maxBlocks) * maxBlocks
const endBlock = 13136426 // Last transaction of August 31st 2021

See results in mainnet.js.

xDAI:

const providerUrl = "https://rpc.xdaichain.com/"
const unlockAddress = "0x14bb3586Ce2946E71B95Fe00Fc73dd30ed830863"
const maxBlocks = 10000000
const startBlock = Math.floor(14521201/maxBlocks) * maxBlocks
const endBlock = 17866254 // Last transaction of August 31st 2021

See results in xdai.js.

Polygon

We have not found a polygon provider which lets use un the same script as above in a reasonable time. As a consequence, we used Dune.

This request lists all key purchasers:

SELECT "to", "evt_tx_hash" FROM unlock."PublicLock_evt_Transfer"
        WHERE evt_block_number < 18605916
        ORDER BY "evt_block_time" ASC

And this one lists all lock deployers:

SELECT "lockOwner", "evt_tx_hash" FROM unlock."Unlock_evt_NewLock"
        WHERE evt_block_number < 18605916
        ORDER BY "evt_block_time" ASC

We then combined the outcome to build a json file of the same format as above.

Token holders:

We use the covalent API

curl -X GET "https://api.covalenthq.com/v1/1/tokens/0x90de74265a416e1393a450752175aed98fe11517/token_holders/?block-height=13136426&page-number=0&page-size=1000&key=ckey_44739eb00dd649e182e708ba705" -H "Accept: application/json"
curl -X GET "https://api.covalenthq.com/v1/1/tokens/0x90de74265a416e1393a450752175aed98fe11517/token_holders/?block-height=13136426&page-number=1&page-size=1000&key=ckey_44739eb00dd649e182e708ba705" -H "Accept: application/json"
curl -X GET "https://api.covalenthq.com/v1/1/tokens/0x90de74265a416e1393a450752175aed98fe11517/token_holders/?block-height=13136426&page-number=2&page-size=1000&key=ckey_44739eb00dd649e182e708ba705" -H "Accept: application/json"
curl -X GET "https://api.covalenthq.com/v1/1/tokens/0x90de74265a416e1393a450752175aed98fe11517/token_holders/?block-height=13136426&page-number=3&page-size=1000&key=ckey_44739eb00dd649e182e708ba705" -H "Accept: application/json"
curl -X GET "https://api.covalenthq.com/v1/1/tokens/0x90de74265a416e1393a450752175aed98fe11517/token_holders/?block-height=13136426&page-number=4&page-size=1000&key=ckey_44739eb00dd649e182e708ba705" -H "Accept: application/json"

And combined the result, and then restricted to all token holders with 3 UDT or more.

We are also adding any user who has been providing liquidity to the Uniswap v2 pool used by the protocol as of the same date.

curl -X GET "https://api.covalenthq.com/v1/1/tokens/0x9ca8aef2372c705d6848fdda3c1267a7f51267c1/token_holders/?block-height=13136426&page-number=0&page-size=1000&key=ckey_44739eb00dd649e182e708ba705" -H "Accept: application/json"

Create a claimAndDelegate fork of the Uniswap merkle-dristribution repo!

See repo