The Double-Spend Problem in Identity

[u/oed_]

https://jthor.eth.link/blog/2026/10/02/double-spend-problem-in-identity/

In which I explain how to solve identity in peer-to-peer data systems by (minimally) using Ethereum.

[u/edmundedgar]

That's a really good article.

This is my talk about this exact problem with did:plc, which is used by ATProto (the protocol that powers Bluesky). https://edochan.com/talks/did/

[u/oed_ → u/edmundedgar]

Yeah, I believe we talked about this on Bluesky at some point!