HausMesh

What DCL Verified means

DCL Verified The badge on a product means the public record of Matter certification agrees that the newest software of that product is certified.

On this site

0 of the 0 products in the HausMesh catalogue are DCL Verified. See the DCL Verified products

The Distributed Compliance Ledger

The Distributed Compliance Ledger, the DCL, is the public register of Matter products kept by the Connectivity Standards Alliance (the CSA), the body that owns the Matter standard. When a maker's product passes certification, the CSA records it there: the maker, the model, each software version that was tested, the certificate and the date.

Anyone can read it without an account. It is a shared record rather than one company's database, so a maker cannot quietly change what it says about a certificate.

When a product is DCL Verified

A product gets the badge only when all four of these are true:

  1. The ledger has a valid maker and product identifier for it, which match the register of makers and models.
  2. There is a certificate for the newest software version the ledger lists for the product.
  3. That certificate has not been revoked.
  4. The ledger says the product is currently certified for that software version.

A product that fails any of them is still listed, with its certificate facts, and simply has no badge. A product whose older software was certified but whose newest was not is the common case.

How we get the data

We read the ledger through the CSA's public interface every night and keep our own copy, so that pages load quickly. The badge comes from the ledger's records and the four rules above, worked out again on each of those nightly reads.

The device types and clusters on these pages come from the Matter specification's data model, which the CSA publishes under licence.

What the badge does not mean

  • It is not a CSA mark. The CSA certifies products; DCL Verified is our label for what the ledger shows.
  • It does not say how well a product works, or that we have tested it. Where we have tested a product, a tested review says so, and is labelled as such.
  • It does not say which Matter clusters a product implements. The CSA does not publish that for individual products.