sbarratt

import pandas as pd
import time
import requests
import time
import hmac
from requests import Request
import sys
import json
import os

lucas-manuel

coverage_report:
    name: Generate coverage report
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v2
    
    - name: Install Foundry
      uses: onbjerg/foundry-toolchain@v1
      with:
        version: nightly

karmacoma-eth

# quine.etk
# ⬜ => ⬜
# A quine is a computer program which takes no input and produces a copy of its own source code as its only output.

# 0x80...f3 is the compiled code excluding the push16 instruction (from dup1 to return)
push16 0x8060801b17606f5953600152602136f3

                    # --- stack ---
dup1                # code code
push1 128           # 128 code code

yorickdowne

Overview

Syncing an Ethereum node is largely reliant on IOPS, I/O Per Second. Budget SSDs will struggle to an extent, and some won't be able to sync at all.

This document aims to snapshot some known good and known bad models.

The drive lists are ordered by interface and then by capacity and alphabetically by vendor name, not by preference. The lists are not exhaustive at all. @mwpastore linked a filterable spreadsheet in comments that has a far greater variety of drives and their characteristics. Filter it by DRAM yes, NAND Type TLC, Form Factor M.2, and desired capacity.

For size, 4TB comes recommended as of mid 2024. The smaller 2TB drive should last an Ethereum full node until early 2025 or thereabouts, with crystal ball uncertainty. Remy wrote a migration guide to 4TB.

0xalpharush

# add this to your hardhat config
#     compilers: [
#      {
#        version: "0.8.13",
#         settings: {
#           viaIR: true,
#           outputSelection: {
#             "*": {
#               "*": ["irOptimized"],
#             },

fxfactorial

package main

import (
	"fmt"
	"math/big"

	"github.com/ethereum/go-ethereum/accounts/abi"
	"github.com/ethereum/go-ethereum/common"
	"github.com/ethereum/go-ethereum/common/hexutil"
)

spalladino

pragma solidity ^0.7.0;

// Each mining pool that intends to provide flash loans deploys a Loaner contract and transfers ETH to it
// When testing each bundle, the diff in balance in this contract is taking into account for calculating effective gas price
// The contract loans funds only on blocks mined by the miner and on zero-gasprice txs
contract Loaner {
    address immutable owner;
    
    constructor(address _owner) {
        owner = _owner;

cryptoscopia

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

// The ABI encoder is necessary, but older Solidity versions should work
pragma solidity ^0.7.0;
pragma experimental ABIEncoderV2;

// These definitions are taken from across multiple dydx contracts, and are
// limited to just the bare minimum necessary to make flash loans work.
library Types {
    enum AssetDenomination { Wei, Par }

dskindell

####### Shortcut Hotkeys #############
# open terminal
lalt - return : $HOME/.config/skhd/open_terminal.sh --single-instance
lalt + shift - return : $HOME/.config/skhd/open_terminal.sh
#alt - t : osascript -e 'tell application "iTerm2" to create window with default profile'

# restart Yabi, SpaceBar, and SKHD
#lalt + lcmd - r : \
#    launchctl kickstart -k "gui/${UID}/homebrew.mxcl.yabai"; \
#    skhd --reload

maurelian

Ethereum Composability Security Guidelines

The following is an informal compendium of ways you can screw up when mixing and matching smart contracts:

ERC20

• Be aware of front running on changes to the allowed value.
• Be aware that some tokens don't return a boolean on success or failure.
• Some token balances change overtime, even without a transfer.
• Use balanceOf(addr) over internal accounting. (https://medium.com/trustless-fund/atoken-withdrawal-vulnerability-disclosure-5d8eadc64539)