Banks & regulators
An independent, domestic, privacy-preserving payment rail, with the central bank at the root of the trust chain.
Licensing
We license the protocol. We do not operate the network.
That separation is deliberate. The party that designs the rules of a payment network should not also be a participant in it. The network is run by a consortium of the supervisor, the issuing institutions and the state.
Who this is for
Integrators
One verification function, sub-kilobyte proofs, card speed. Standard interoperation with existing clearing, SEPA and a future digital euro.
Card networks & payment schemes
An offline-and-privacy capability layer that fits alongside existing rails, in a partner licensing model.
Researchers
A practical instantiation, an honest limitations list, and an open key-management layer to start from.
Licensees
The flagship product built on Pactena is Qashmore.
Disclosure ladder
| Stage | You get | You don't get |
|---|---|---|
| Public | This site, the architecture paper, the open-source key-management layer, a demonstrator | The construction, commercial terms |
| First conversation | A briefing for your world, a live demo | The specification |
| Under NDA | The full v8 specification, the analysis, the AML/KYC document, a technical deep dive | Commercial terms |
| Engagement | Reference code, a proof-of-concept plan, commercial terms | — |
On secrecy
The cryptographic construction is not published, and it is not hidden either. It is specified, and it is shared under NDA. Security does not rest on the construction being secret.