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Growth · January 10, 2024

PT

Peer-to-peer mini r/place with Proof of Work

Hi HN, This is a site where users can submit content and the shortest SHA256 value of nonce+content among them will make the site display the content. Very basic, without a blockchain. It's a static site with WebRTC and peer-to-peer. Why? I wanted r/place (Reddit canvas where users collaborate on a pixel grid), but with proof of work. This is my progress so far. It's a WebRTC app with peer to peer connectivity that forwards the best hashed values to other users, which verify them, display them and pass them on. There are many many improvements to be done (especially I should probably…

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In plain words

This is a peer-to-peer collaborative canvas application where users submit content and the entry with the shortest SHA256 hash value gets displayed, similar to Reddit's r/place but powered by proof-of-work computation rather than voting. The static site uses WebRTC for direct peer connections, allowing users to verify and forward the best hashed values to each other. It's designed for users interested in experimental distributed systems and collaborative content creation, offering a novel approach to resolving conflicts through computational work rather than centralized authority.

written from the facts on this page · September 2026

From the sources

In the maker’s words, at launch

Hi HN, This is a site where users can submit content and the shortest SHA256 value of nonce+content among them will make the site display the content. Very basic, without a blockchain. It's a static site with WebRTC and peer-to-peer. Why? I wanted r/place (Reddit canvas where users collaborate on a pixel grid), but with proof of work. This is my progress so far. It's a WebRTC app with peer to peer connectivity that forwards the best hashed values to other users, which verify them, display them and pass them on. There are many many improvements to be done (especially I should probably use something like libp2p-gossipsub, otherwise scale is probably an issue) and more ideas to be implemented, and I'm sure there are bugs. But I didn't find any similar projects yet (except blockchains of course). Hope you like it!

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