DID:QSB Recognised in Key Global DID Catalogues

We are proud to announce that DID:QSB, the decentralised identifier method developed for our QSB Blockchain, has been added to two important catalogues of DID methods: the W3C DID Methods registry page and DID Directory. In the current W3C Group Note listing known DID methods, qsb appears as “QSB Blockchain” with Quantum Blockchains as the listed organisation.

This is an important milestone for the further development of QSB as infrastructure for European Digital Identity projects and for digital identity ecosystems more broadly. Particularly, it is important for the use of our QSB Blockchain in the POSEIDON EU project: https://poseidon-pqc.eu/ . 

The W3C document serves as a public collection of known DID methods and a discovery point for developers looking for methods they may wish to implement. At the same time, the W3C note is explicit that the registry is intended as a discovery mechanism rather than an endorsement of any specific DID method.

For us, this recognition matters because discoverability and formal visibility are essential for adoption. In large-scale identity initiatives such as those related to the European Digital Identity Wallet, trust infrastructure must be not only technically sound but also visible, documentable, and easy for ecosystem participants to evaluate and integrate. Being present in recognised DID catalogues makes DID:QSB easier to find, assess, reference, and test in real-world digital identity architectures.

This strengthens the position of QSB Blockchain as a credible building block for verifiable digital identity, trust registries, credential ecosystems, and future EUDI-aligned deployments. It also supports our broader vision that digital identity infrastructure should be secure, interoperable, and ready for the next generation of trust services.

We see this as another step in making QSB relevant not only for specialised blockchain environments, but for digital identity in general — especially where resilience, trust, and long-term architectural independence matter most.

References:
W3C DID Methods registry: https://www.w3.org/TR/did-extensions-methods/#did-methods

DID Directory listing: https://diddirectory.com/listing/69b762362e774744afb04680