FUSAKA - The Next Generation of Ethereum Based on Tim Beiko OG posts: https://www.instagram.com/p/DNOM-cSoFO7/?igsh=cGh0dXJzNWlpb2F2 https://x.com/timbeiko/status/1826636805028069781?s=46&t=OEeZl5EHiWKwNowOQmAe_A https://blog.ethereum.org/2025/07/29/checkpoint-5#fusaka https://eips.ethereum.org/EIPS/eip-7607