Re: New Work Item Proposal: Data Integrity BIP340 Cryptosuite

Really exciting to see. I'd kinda given up on DID / zk proofs etc; a couple of years ago to be honest, but this is hugely accessible to my vibe coding brain.


On Sunday, 10 August 2025 at 17:59, Melvin Carvalho <melvincarvalho@gmail.com> wrote:

> 

> 

> ne 10. 8. 2025 v 18:15 odesílatel Dr John O'Hare <w3c@xrsystems.uk> napsal:
> 

> > That's super useful thanks Melvin. I think I might try implementing this into the back end of my knowledge system. How does the zero relay / point to point system work? I think I've only ever used the relays.
> 

> 

> It's a proposed spec right now, but I think it will be adopted by the CCG
> 

> https://dcdpr.github.io/data-integrity-schnorr-secp256k1/
> 

> Just run it through an LLM with questions, and then post back here if anything is unclear
> 

> > 

> > 

> > Is there code for protocol agnostic credentials around yet? ie, expanding on your point about it being cross compatible?
> 

> 

> That would be the verifiable credentials stack. It will be widely used, I think
> 

> https://en.wikipedia.org/wiki/Verifiable_credentials
> 

> > 

> > On Saturday, 9 August 2025 at 21:58, Melvin Carvalho <melvincarvalho@gmail.com> wrote:
> > 

> > > Good news! After a helpful discussion with the W3C Credentials Community Group, we’ve aligned on a verification method that works cleanly with did:nostr and the Verifiable Credentials stack:
> > > https://github.com/w3c-ccg/community/issues/254#issuecomment-3172061021
> > > 

> > > I’ve already patched the did:nostr draft to reflect this.
> > > 

> > > What this unlocks
> > > 

> > > 1. Production-ready reference implementations
> > > 

> > > 2. Compatibility with the wider W3C Credentials ecosystem
> > > 

> > > 3. A straightforward path to issuing industry-standard credentials (badges, awards, driver’s licences, etc.) over Nostr
> > > 

> > > 4. The ability to sign and exchange JSON payloads between Nostr services (relays optional)
> > > 

> > > It’s a nice step up in standards alignment and Nostr functionality.
> > > Many thanks to everyone who weighed in, feedback very welcome!
> > > 

> > > ne 3. 8. 2025 v 19:10 odesílatel Melvin Carvalho <melvincarvalho@gmail.com> napsal:
> > > 

> > > > FYI
> > > > ---------- Forwarded message ---------
> > > > Od: Will Abramson <wip.abramson@gmail.com>
> > > > Date: čt 31. 7. 2025 v 18:13
> > > > Subject: New Work Item Proposal: Data Integrity BIP340 Cryptosuite
> > > > To: Credentials Community Group <public-credentials@w3.org>
> > > > 

> > > > 

> > > > Hello CCG community,
> > > > Digital Contract Design in collaboration with Legendary Requirements and Danube Tech are proposing a new CCG Work Item for adoption: https://dcdpr.github.io/data-integrity-schnorr-secp256k1/
> > > > 

> > > > See the proposal issue here: https://github.com/w3c-ccg/community/issues/254
> > > > 

> > > > We feel this is important as there are currently no up to date Data Integrity cryptosuites available for the secp256k1 curve, which has wide adoption throughout multiple blockchain ecosystems.
> > > > 

> > > > Thanks,
> > > > All the best,
> > > > Will Abramson