Solidus Verify
Solidus Verify vs Sumsub
Sumsub sells the check. Solidus issues a credential the user keeps and re-presents — so the second relying party never re-runs it. Different product category, different cost curve.
Solidus is a public testnet: no mainnet, no token, no external audit, and no paying customer. Every claim below is checkable; none of them are a substitute for the certifications an incumbent already holds.
What Sumsub does better
- Certifications we do not hold: eIDAS QES, NIST iBeta, ISO 27001/27017/27018, SOC 2 Type II. For a regulated buyer these are procurement blockers, and Solidus fails them today — SOC 2 / ISO 27001 / eIDAS QTSP are a 2027 roadmap.
- A shipped, crypto-specific FATF Travel Rule product. Solidus has no equivalent productized offering.
- Cheaper on the initial verification: ~$1.50–2.50 vs our $5.00.
- Roughly 3,000+ customers, a support organisation, and SLAs. Solidus has none of that — we are a testnet with no paying customer.
- The procurement default. Nobody gets fired for buying Sumsub.
Where Solidus is different
- Re-verification costs $0.05 per credential presentation instead of the full rate every time.
- The user holds the credential. There is no vendor tenant to be locked into and no re-export project when you leave.
- W3C Verifiable Credentials and BBS+ selective disclosure — the credential is portable to any verifier, not just back to us.
Side by side
| Feature | Solidus | Sumsub |
|---|---|---|
| Initial KYC (gov ID + liveness) | $5.00 | ~$1.50–2.50Sumsub wins |
| Every re-verification after that | $0.05 per presentation | Full rate, every time |
| Break-even | Cheaper from the 3rd verification onward | — |
| eIDAS 2 QTSP status | Not held — 2027 roadmap | eIDAS QES heldSumsub wins |
| SOC 2 / ISO 27001 | Not held — 2027 roadmap | SOC 2 Type II, ISO 27001/27017/27018Sumsub wins |
| FATF Travel Rule | Not offered | Shipped productSumsub wins |
| Credential portability | W3C VC — the user holds it | Result returned to your tenant |
| Selective disclosure | BBS+ (unaudited) | Not offered |
| Architecture | Issuer — you get a credential | Centralized SaaS — PII flows through their infrastructure |
Check it yourself
npm i @solidus-network/auth @solidus-network/bbs — the BBS+ unlinkability demo ships inside the tarball. The implementation is UNAUDITED; an external audit is targeted H2 2026 via NLnet NGI Zero.