0age

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

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),

0age

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

* @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

#!/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

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: