check-holesky.sh is a script that verifies if a beacon node is on the correct fork by comparing its block roots with a reference chain data file. It has been preconfigured with the slot -> block root mappings generated from a lighthouse-erigon node.
wget https://gist.githubusercontent.com/samcm/e2da294dab77e93ad0ee0e815580294f/raw/b379bd5417409d2b01c7c3dd9d3348c91e80b348/check-holesky.sh \
> check-holesky.sh
hi, i'm daniel. i'm a 15-year-old high school junior. in my free time, i hack billion dollar companies and build cool stuff.
3 months ago, I discovered a unique 0-click deanonymization attack that allows an attacker to grab the location of any target within a 250 mile radius. With a vulnerable app installed on a target's phone (or as a background application on their laptop), an attacker can send a malicious payload and deanonymize you within seconds--and you wouldn't even know.
I'm publishing this writeup and research as a warning, especially for journalists, activists, and hackers, about this type of undetectable attack. Hundreds of applications are vulnerable, including some of the most popular apps in the world: Signal, Discord, Twitter/X, and others. Here's how it works:
By the numbers, Cloudflare is easily the most popular CDN on the market. It beats out competitors such as Sucuri, Amazon CloudFront, Akamai, and Fastly. In 2019, a major Cloudflare outage k
List of mev-boost builder payout addresses.
| Who | Address | ENS |
|---|---|---|
| Flashbots | 0xdafea492d9c6733ae3d56b7ed1adb60692c98bc5 | flashbots-builder.eth |
| bloXroute (max-profit) | 0xf2f5c73fa04406b1995e397b55c24ab1f3ea726c | bloxroute-maxprofit.eth |
| bloXroute (non-sandwich) | 0xf573d99385c05c23b24ed33de616ad16a43a0919 | bloxroute-ethical.eth |
| bloXroute (regulated) | 0x199d5ed7f45f4ee35960cf22eade2076e95b253f | [bloxroute-regulated.eth](https://etherscan.io/enslo |
Syncing an Ethereum node is largely reliant on latency and IOPS, I/O Per Second, of the storage. Budget SSDs will struggle to an extent, and some won't be able to sync at all. For simplicity, this page treats IOPS as a proxy for/predictor of latency.
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 is a very conservative choice. The smaller 2TB drive should last an Ethereum full node until at least sometime 2026, with the pre-merge history expiry scheduled for Ma
The greatest strength of an airgapped machine is also it's biggest headache - no way out! This is a short guide for configuring an old Raspberry Pi 2 (no radio cards!) to securely use the eth2-deposit-cli tool. Whether using an existing mnemonic or generating a new one, the security conscious will appreciate doing so on a machine which never has and never will touch any network.
| pragma solidity =0.4.25; | |
| contract AcoraidaMonicaGame{ | |
| uint256 public version = 4; | |
| string public description = "Acoraida Monica admires smart guys, she'd like to pay 10000ETH to the one who could answer her question. Would it be you?"; | |
| string public constant sampleQuestion = "Who is Acoraida Monica?"; | |
| string public constant sampleAnswer = "$*!&#^[` [email protected];Ta&*T` R`<`~5Z`^5V You beat me! :D"; | |
| Logger public constant logger=Logger(0x5e351bd4247f0526359fb22078ba725a192872f3); | |
| address questioner; | |
| string public question; |
This is a compiled list of falsehoods programmers tend to believe about working with time.
Don't re-invent a date time library yourself. If you think you understand everything about time, you're probably doing it wrong.
| #!/bin/bash | |
| git clone https://github.com/hashcat/hashcat.git | |
| mkdir -p hashcat/deps | |
| git clone https://github.com/KhronosGroup/OpenCL-Headers.git hashcat/deps/OpenCL | |
| cd hashcat/ && make | |
| ./hashcat --version | |
| ./hashcat -b -D 1,2 | |
| ./example0.sh |
| const Nightmare = require('nightmare') | |
| const Datastore = require('nedb') | |
| const DB = new Datastore({ filename: 'ticks.db', autoload: true }) | |
| const INTERVAL = process.env.INTERVAL || 15000 | |
| var nightmare = new Nightmare({ | |
| show: true, | |
| webPreferences: { | |
| partition: 'nopersist' |
