jefflau

ensip	XX (draft, number TBD, next after ENSIP-24)
title	On-chain Contract Version Registry
status	Draft
type	Standards Track
author	Jeff Lau <jeff@ens.domains>
created	2026-05-12

Abstract

jefflau

ensip	XX
title	On-chain Contract Version Registry
status	Draft
type	Standards Track
author	Jeff Lau <jeff@ens.domains>
created	2026-05-12

Abstract

jefflau

// SPDX-License-Identifier: MIT
pragma solidity >= 0.4.22 <0.9.0;

library console {
	address constant CONSOLE_ADDRESS = address(0x000000000000000000636F6e736F6c652e6c6f67);

	function _sendLogPayload(bytes memory payload) private view {
		uint256 payloadLength = payload.length;
		address consoleAddress = CONSOLE_ADDRESS;
		assembly {

jefflau

// SPDX-License-Identifier: MIT
pragma solidity >= 0.4.22 <0.9.0;

library console {
	address constant CONSOLE_ADDRESS = address(0x000000000000000000636F6e736F6c652e6c6f67);

	function _sendLogPayload(bytes memory payload) private view {
		uint256 payloadLength = payload.length;
		address consoleAddress = CONSOLE_ADDRESS;
		assembly {

jefflau

pragma solidity >=0.6.0 <0.7.0;

import "@nomiclabs/buidler/console.sol";

// SPDX-License-Identifier: MIT
contract MultiSig {
    address[] public owners;
    mapping(address => bool) isOwner;
    uint256 public confirmations;
    Transaction[] public transactions;

jefflau

function calcPoolValueLoss(x){
  return Math.pow(x, 0.02)*((1)^0.98)
}

jefflau

API design for ENS

The ENS library is to be used in dapps and possibly other tools that need to connect to the set of ENS contracts on the Ethereum blockchain. It should give them all the tools they need to resolve and set records for their ENS names, as well as abstracting implementation details including, but not limited to:

• namehashes (could be provided as an advanced option)
• resolvers (unless it's absolutely required for custom resolvers)
• using the graph for getting textRecord or non-eth address keys
• decoders/encoders of addresses

Instantiation

jefflau

export function sendHelper(tx) {
  return new Promise((resolve, reject) => {
    tx()
      .on('transactionHash', txHash => {
        const txState = 'Pending'
        addTransaction({ txHash, txState })
        resolve(txHash)
      })
      .on('receipt', receipt => {
        const txHash = receipt.transactionHash

jefflau

const cloudName = 'xxxxxx'
const cloudinaryUrl = `https://api.cloudinary.com/v1_1/${cloudName}/upload`
const unsignedUploadPreset = 'xxxxxx'

export function upload(file) {
  const body = new FormData()
  body.append('file', file)
  body.append('upload_preset', unsignedUploadPreset)

  return (

jefflau

const useMedia = (query, defaultState) => {
  const [state, setState] = useState(defaultState)

  useEffect(
    () => {
      let mounted = true
      const mql = window.matchMedia(query)
      const onChange = () => {
        if (!mounted) return
        setState(!!mql.matches)