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Those Pre-Bitcoin PoW Protocols Have Recently Been Reimplemented

This article details a recent surge in replicating pre-Bitcoin Proof-of-Work (PoW) protocols, specifically focusing on Hal Finney's 2004 RPOW (Reusable Proofs of Work). Within five days in May 2026, multiple independent builders in the Bitcoin/cypherpunk community launched projects inspired by this early electronic cash proposal. The initiative began with Fred Krueger's `rpow2.com`, a centralized but auditable system that replaced RPOW's original IBM 4758 hardware with Ed25519 signatures. Initially a faithful replica, it later adopted Bitcoin-like features (21M supply cap, difficulty adjustment) and a controversial 5.24% founder allocation. This sparked rapid forks, including `rpow4.com` which incorporated full Bitcoin parameters, a prediction market (`rpowmarket.com`), and a DEX (`rpow2swap.com`). Concurrently, Mike In Space created a prototype of Wei Dai's 1998 b-money proposal (`b-money.replit.app`), pushing the historical exploration even further back. The article contrasts these centralized, server-dependent experiments with Bitcoin's core innovation of decentralized, trustless consensus. It also highlights a parallel development: the `HASH` project on Ethereum, which uses smart contract hooks to enable a purely fair-launch, browser-mineable PoW token with 0% allocations to team or VCs. The collective activity is framed as a meme-driven, educational exploration of cypherpunk history rather than a serious financial movement, with all projects heavily disclaiming any investment value.

marsbit05/11 09:12

Those Pre-Bitcoin PoW Protocols Have Recently Been Reimplemented

marsbit05/11 09:12

New York Times' Blockbuster Investigation Reignites Satoshi Nakamoto Identity Mystery, Adam Back Quickly Denies After Being Identified

The New York Times published an extensive investigation suggesting that Blockstream CEO and cryptographer Adam Back is the most plausible candidate for being Bitcoin’s pseudonymous creator, Satoshi Nakamoto. The report, by Pulitzer-winning journalist John Carreyrou, analyzed linguistic patterns, technical ideas, and historical context from decades of online archives and cryptographic mailing lists. It highlighted Back’s early work on Hashcash—a proof-of-work system used in Bitcoin—as well as his consistent advocacy for digital cash and privacy technologies since the 1990s. The investigation also pointed to stylistic similarities in writing and aligned ideological views between Back and Satoshi. However, Back quickly denied the claims, calling the evidence coincidental and statistically biased due to his high volume of posts in crypto circles. He reiterated that he is not Satoshi and argued that Satoshi’s anonymity benefits Bitcoin. The crypto community responded with skepticism; some developers criticized the report for relying on circumstantial evidence, while others accused Back of exaggerating his role in Bitcoin’s origins. Past attempts to identify Satoshi, including high-profile claims involving Dorian Nakamoto and Craig Wright, have all failed due to lack of conclusive proof. The mystery remains unsolved, and Bitcoin’s value continues to stem from global adoption rather than its creator’s identity.

marsbit04/09 10:34

New York Times' Blockbuster Investigation Reignites Satoshi Nakamoto Identity Mystery, Adam Back Quickly Denies After Being Identified

marsbit04/09 10:34

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