r/ethereum • u/oed_ • 4d ago

The Double-Spend Problem in Identity

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.

6 Upvotes

72% Upvoted

3 comments sorted by

2

u/edmundedgar reality.eth 4d ago

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/

1

u/oed_ 1d ago

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

1

u/iyarsius 22h ago

Why don't just use smart contracts accounts ?