In a remarkable five-day effort, five independent developers have reimplemented early proof-of-work (PoW) protocols, including Hal Finney's RPOW and Wei Dai's b-money. This initiative revisits the foundational concepts of electronic cash that predate Bitcoin. On May 7, Fred Krueger launched rpow2.com, replicating Finney's RPOW with modern cryptographic tools but maintaining its centralized nature. Subsequent days saw further developments, including a Bitcoin-flavored version of RPOW and a b-money prototype. The project highlights the cypherpunk lineage that influenced Bitcoin's creation, with developers exploring the historical roots of decentralized digital currency. These efforts, while experimental and centralized, underscore the enduring interest in the principles that shaped Bitcoin's development. The initiative is a collective response from a community of Bitcoin veterans and enthusiasts, reflecting on the evolution of digital currency technologies.