lrettig

# Date, blocknum, difficulty as of 2019-01-18
# Script by vbuterin, slightly modified by lrettig
import random
import datetime
import sys

def calc_bomb(i):
    period = i // 100000
    if (period > 0):
        # Subtract 2, this is the original formula

allenday

with 
double_entry_book as (
    -- debits
    select to_address as address, CAST(value AS NUMERIC) as value, block_timestamp
    from `bigquery-public-data.crypto_ethereum.token_transfers`
    where from_address is not null and to_address is not null
    and token_address = LOWER('0x408e41876cccdc0f92210600ef50372656052a38') --OMG
    union all
    -- credits
    select from_address as address, -CAST(value AS NUMERIC) as value, block_timestamp

FernandoMartinelli

def isWrapPair(equivalentSets, tokenA, tokenB):
    for equivalentSet in equivalentSets:
        if ((tokenA in equivalentSet) and (tokenB in equivalentSet)):
            return True
    return False

equivalentSets = [
  ["WETH", "aETH", "cETH", "iETH", "iETH", "PETH"], # ETH group
  ["DAI", "aDAI", "cDAI", "dDAI", "iDAI", "yDAI", "rDAI", "CHAI"], # DAI group
  ["USDC", "aUSDC", "cUSDC", "dUSDC", "iUSDC", "yUSDC"] # USDC group

gorgos

pragma solidity 0.6.6;
pragma experimental ABIEncoderV2;

import "https://github.com/Uniswap/uniswap-v2-core/blob/master/contracts/interfaces/IUniswapV2Pair.sol";
import "https://github.com/Uniswap/uniswap-lib/blob/master/contracts/libraries/FixedPoint.sol";
import "https://github.com/Uniswap/uniswap-lib/blob/master/contracts/libraries/FullMath.sol";
import "https://github.com/Uniswap/uniswap-lib/blob/master/contracts/libraries/Babylonian.sol";
import "https://github.com/Uniswap/uniswap-lib/blob/master/contracts/libraries/BitMath.sol";

library SafeMath {

miohtama

--  Web3.utils.keccak256("approve(address,uint256)").slice(0, 10);
-- '0x095ea7b3'
WITH txdata as (
    SELECT tx.hash as txid, cast(tx.receipt_gas_used as numeric) * cast(tx.gas_price as numeric) as cost FROM
        bigquery-public-data.crypto_ethereum.transactions as tx
    where 
        tx.input 
    LIKE  "0x095ea7b3%") 
SELECT (SUM(cost) / POWER(10, 18)) as eth_cost from txdata;

alexisgauba

Vesting Call Options

The following instructions go step-by-step through how to create vesting call options, similar to equity options that startups typically use to incentivize employees.

H/t @Fubuloubu, who approached us about creating these for the Yearn team to potentially use! This allows Yearn or similar projects (on-chain DAOs) to grant vesting options to any contributor.

We'll use YFI call options as an example.

Deploy the call options

• Call createOptionsContract from the OptionFactory via Etherscan
• To create a $0.50 YFI call option, parameters as follows:

z0r0z

// SPDX-License-Identifier: GPL-3.0-or-later

pragma solidity 0.8.9;

/// @notice Minimal ERC-20 token interface.
interface IERC20Minimal { 
    function balanceOf(address account) external view returns (uint256);
    function transfer(address to, uint256 amount) external returns (bool);
    function transferFrom(address from, address to, uint256 amount) external returns (bool);
}

frangio

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.9;

// Unlike the string type, ShortString is a value type that can be made immutable.
// It supports strings of at most 32 bytes and assumes they don't contain null bytes.

type ShortString is bytes32;

error StringTooLong(string s);

ruphy

// SPDX-License-Identifier: MIT
//
// This code will add a GPT3() function in your Google Sheets
// This code is originally inspired from https://twitter.com/fabianstelzer/status/1572926883179778050
// To use it, insert your API key below, open Google Sheets -> Extensions -> Apps Script -> Copy & Paste this -> Save
//
// Usage: =GPT3(prompt, max_tokens (default=15), model (default=davinci))
// Example usage: =GPT3("Once upon a time,", 1000, "davinci")

var API_KEY = "your-API-key";

JohnPhamous

export const chaosTestStrings = (): void => {
  const textNodes = getAllTextNodes(document.body);

  for (const node of textNodes) {
    const textNodeLength = node.textContent ? node.textContent.length : 0;
    if (node.textContent === null) {
      return;
    }
    if (node.parentElement instanceof Element) {
      if (node.parentElement.dataset.originalText === undefined) {