MATRIX is open by default. Vendors that participate get the responsiveness badge, the certification ladder, and the Lead-capture form. Vendors that don't still get listed.
Sign in. Search for your tool. Verify ownership via corporate email-domain match OR DNS TXT record on your vendor domain.
Confirm description, primary domain, secondary domains, capability tags, supported clouds, data sources, deployment model, target customers.
Walk the TGS items relevant to your domain. Mark each: Full / Partial / Not yet. Mark items as evidence-ready vs roadmap.
Upload proof for items you claimed: screenshots, architecture diagrams, API proof, customer case studies, before/after metrics, export samples.
Profile flips Unverified → Vendor-Submitted → Evidence Verified after IFO4 review or community attestation. Cryptographically signed (Sigstore + IPFS) when verified.