BSV Association – interest in contributing to test suites, pilots, and implementation guides

Hello all,

I'm Liz Louw, a member of the Partnerships team at the BSV Association. As W3C members, we've been following the formation and early work of both the Verifiable Supply Chain Community Group and the UORA Community Group with considerable interest.

I'm writing to ask a practical question: where pilots, test builds, or proof-of-concept work is underway across any of the active Community Groups, is there appetite for a contributor that brings a public blockchain truth layer?

The gap we address is specific. Verifiable credentials and UORA attestations define what data is exchanged and how it is structured. What they do not themselves guarantee is that the underlying record has not been altered between creation and presentation. For regulatory frameworks like EUDR and CBAM — where the evidentiary standard is shifting from 'a system exists' to 'prove the data has not been modified' — that distinction matters materially. BSV provides immutable, timestamped on-chain anchoring at sub-cent cost and at throughput scale, sitting beneath existing VC and attestation flows as an independent verification layer that any party can confirm without relying on an intermediary.

In the context of the Verifiable Supply Chain Community Group, BSV could contribute concretely in two ways. For test suite development, we can provide a public blockchain anchoring implementation for interoperability testing against GS1 EPCIS event data, ISO frameworks, and EUDR/CBAM regulatory data models — including verification tooling and test fixtures for multi-party supply chain attestation scenarios. For implementation guides, we can contribute reference architecture showing how on-chain anchoring sits beneath existing EPCIS and VC data flows, specifically addressing the cryptographic proof-of-provenance requirement that certification platforms alone cannot satisfy for EU market regulators.

For the UORA Community Group, the physical asset attestation protocol maps directly onto work we have been doing on Digital Product Passport anchoring for the EU battery passport and industrial digital twin ecosystems. We can contribute attestation schema input and reference architecture for asset lifecycle tracking — particularly for critical minerals and manufactured goods where chain-of-custody integrity is under active regulatory scrutiny under the EU Critical Raw Materials Act.

All of our reference implementations are open-source and non-commercial, available for any group member to build upon, adapt, or extend.

If pilots or test builds are forming in either group — or elsewhere across the W3C community groups — where a truth layer would strengthen the output, we'd welcome the opportunity to contribute. Happy to share implementation details or discuss fit with anyone working on relevant use cases.

Best regards,



Liz Louw

Head of Education, Partnerships



Lizette.louw@bsvassociation.org<mailto:Lizette.louw@bsvassociation.org>



https://bsvassociation.org



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