Skip to content

Instantly share code, notes, and snippets.

Keybase proof

I hereby claim:

  • I am 0age on github.
  • I am 0age (https://keybase.io/0age) on keybase.
  • I have a public key whose fingerprint is EC35 AB0B 6C4A D409 0FEF 81D5 50F4 5C3C 02E6 FD2F

To claim this, I am signing this object:

@0age
0age / rewardFunction.js
Created September 26, 2018 01:01
Calculate the reward for creating an upgradeable proxy contract with a given efficient address.
#!/usr/bin/env node
var Decimal = require('decimal.js') // $ yarn add decimal.js
// pulling out the big guns (maybe a tad excessive...)
Decimal.config(
{
precision: 500,
toExpNeg: -500
}
)
@0age
0age / MetamorphicContractInitCode.txt
Last active May 24, 2023 10:24
Metamorphic Contract Initialization Code
* @title Metamorphic Contract
* @author 0age, derived from cloner contract by @mhswende
* @notice This contract will create a metamorphic contract, or an upgradeable
* contract that does not rely on a transparent proxy, when deployed using
* CREATE2. It expects the deployer to provide a getImplementation() function
* that will return an implementation address, which it will then clone and
* deploy. Unlike with upgradeable transparent proxies, the state of a
* metamorphic contract will be wiped clean with each upgrade. With great power
* comes great responsibility - implement appropriate controls and educate the
* users of your contract if it will be interacted with!
@0age
0age / MetamorphicDelegatorFactory.sol
Last active September 20, 2023 08:53
Deploy (and redeploy) contracts to known addresses
pragma solidity 0.5.8;
/**
* @title Metamorphic Delegator Factory
* @author 0age
* @notice This contract creates metamorphic contracts, or contracts that can be
* redeployed with new code to the same address. First, it deploys a contract
* with the initialization code of the contract you want to deploy stored in its
* RUNTIME code. Then, it deploys the contract, which retrieves the address of
@0age
0age / HomeWork.sol
Created June 9, 2019 14:33
HomeWork V1 source (flattened)
pragma solidity 0.5.9; // optimization enabled, runs: 10000, evm: constantinople
/**
* @title HomeWork Interface (version 1) - EIP165 ID 0xe5399799
* @author 0age
* @notice Homework is a utility to find, share, and reuse "home" addresses for
* contracts. Anyone can work to find a new home address by searching for keys,
* a 32-byte value with the first 20 bytes equal to the finder's calling address
* (or derived by hashing an arbitrary 32-byte salt and the caller's address),

Minimal Upgrade Beacon Proxy (runtime code)

  • Get the current implementation contract address from the upgrade beacon via STATICCALL
  • Then, put calldata in memory to supply as argument in DELEGATECALL to implementation
  • Finally, return or revert based on DELEGATECALL status, supplying return buffer in either case
  • 48 bytes long when using an upgrade beacon with a compact address (starts with 5 zero bytes)
0x59595959365960205959596e<upgrade_beacon_last_15_bytes>5afa1551368280375af43d3d93803e602e57fd5bf3

pc  op  name                      [stack] <memory> {return_buffer} *return* ~revert~
@0age
0age / wildcard-resolution-eip.md
Last active February 28, 2020 02:11
Initial draft of ENS wildcard resolution EIP

eip: title: ENS Wildcard Resolution author: Nick Johnson (@arachnid), 0age (@0age) discussions-to: https://github.com/ethereum/EIPs/issues/xxxx status: Draft type: Standards Track category: ERC status: Draft created: 2020-02-25

@0age
0age / simple-fraud-proof-l2-for-scalable-token-transfers.md
Last active March 30, 2020 18:48
Simple Fraud Proof L2 for Scalable Token Transfers

Simple Fraud Proof L2 for Scalable Token Transfers

Authors: @0age & @d1ll0n

This spec outlines an initial implementation of a simple Layer Two construction based on fraud proofs (i.e., Optimistic Rollup). It endeavors to remain as simple as possible while still affording important security guarantees and significant efficiency improvements. It is designed to support scalable token transfers in the near term, with an expectation that eventually more mature, generic L2 as production-ready platforms will become available.

Table of Contents

This file has been truncated, but you can view the full file.
{
"merkleRoot": "0x5742a126030bb1883ceea917fcf0c83ae453aefcd3a681c41481435c8a4beb88",
"tokenTotal": "0x042b42f28d278eee000000",
"claims": {
"0x00038783c2DD7325329d38a247C39515C6d4D696": {
"amount": "0x15af1d78b58c400000",
"index": 0,
"proof": [
"0xdfddeb287e097336de7b55dfac5a9374cbafadd19e6b34f5cc97caf85562c7e1",
"0xd302d40d8fa1cbf59290369c613ef2d7ee1750a7f50f019dbb3a298007e22370",
@0age
0age / summarizeUniProposal.js
Created October 27, 2020 15:05
Node.js web3 script for getting UNI proposal information.
const Web3 = require('web3');
const fs = require('fs');
process.chdir(__dirname);
const PROPOSAL_ID = 2;
const QUORUM = 40_000_000;
// Be sure to use a provider that can retrieve all required events.
const web3Provider = `https://eth-mainnet.alchemyapi.io/jsonrpc/${process.env.WEB3_API_KEY}`;
const web3 = new Web3(web3Provider);