deepidv
Digital IdentitySeptember 11, 20265 min read
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1Kosmos vs Sumsub vs deepidv: EUDI Wallet Readiness

1Kosmos, Sumsub, and deepidv compared on EUDI wallet readiness as the eIDAS 2.0 deadline nears: attestation ingestion, ZKP support, and presenter proof.

An operational engineering analysis evaluating deepidv, 1Kosmos, and Sumsub on readiness for the European Digital Identity wallet, with member-state launches due by the end of 2026 and relying-party obligations phasing in behind them.

The EUDI question lands differently than most vendor comparisons because the deadline is not the customer's: it is the European Union's, and it arrives whether or not any operator prepares. Businesses verifying EU users in regulated sectors will face wallet acceptance expectations as national rollouts complete, and the architecture needed, attestation validation with per-issuer trust, selective-disclosure and ZKP support, presenter verification, and graceful fallback for the unwalleted majority, is the same one the US agencies just endorsed for mobile driver's licenses. One build now serves both continents. This analysis compares how far each platform's current architecture is from that build.

The EUDI readiness scorecard

Capabilitydeepidv1KosmosSumsub
eIDAS 2.0 attestation ingestionNative via Arc, per-issuer policyWallet-adjacent heritage, own credential formatConfigurable workflow blocks
Selective disclosure / ZKP proofsNative (age and attribute tokens)Partial, platform-specificRoadmap-stage
Presenter verification on wallet flowsdeepeye structural liveness in-sessionBiometric binding for enrolled usersConfigurable liveness step
Cross-scheme coverage (EUDI + mDL + ZKP)One gateway, one policy frameworkWallet-centric focusPer-scheme configuration
Fallback parity for non-wallet usersNFC + forensic document path, equal evidenceSecondary flowCore strength
Revocation and trust-list maintenanceArc-managed, continuousPlatform-managed for own schemeCustomer-configured

Three relationships to the wallet

deepidv: the wallet is one input among many

deepidv's position is deliberately unromantic: the EUDI wallet is a credential source, and Arc is the gateway that validates credential sources. Attestations are checked against issuer trust lists, revocation state, and device binding; selective-disclosure and ZKP age proofs are consumed natively; and deepeye verifies the presenting human with structural liveness in the same session, because a wallet on a stolen phone is the mDL problem wearing a European accent. The same gateway ingests mDLs and ZKP tokens, so a global operator runs one policy framework across EUDI, US, and UK credential schemes, with the core platform providing the equal-assurance fallback path for users who arrive with plastic. The deepidv vs 1Kosmos and deepidv vs Sumsub pages carry the detailed head-to-heads.

1Kosmos: wallet-native, but whose wallet

1Kosmos has spent years in verified-credential territory, and its identity wallet heritage means the concepts, binding, attestation, passwordless presentation, are native vocabulary. The strategic question is scheme allegiance: 1Kosmos's strength concentrates in its own credential ecosystem, while EUDI is a federation of state-issued wallets under EU technical standards. Relying parties need consumption of any certified member-state wallet, not enrollment into a vendor scheme, and enterprises evaluating 1Kosmos for EUDI should probe exactly that boundary: validating externally issued attestations at parity with its own.

Sumsub: configurable acceptance, maintenance owned by the customer

Sumsub's workflow model can express wallet acceptance as configured verification blocks, and its EU market presence makes EUDI support a certainty on the roadmap. The recurring trade-off applies with extra force here: EUDI involves 27 national implementations, evolving trust lists, and revocation infrastructure that must be tracked continuously. On a toolkit, that maintenance, which issuers to trust, when a member state's list updates, how ZKP proofs are verified, belongs to the customer's team. The staffing math that worked for one credential scheme gets harder at the scale of a continent.

Suggested read: EUDI wallet deadline: Europe's identity clock hits 90 days

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The test that decides it: selective disclosure under liveness

EUDI's defining feature is proving a claim without revealing the data behind it: over 18, resident in a member state, licensed to drive, disclosed selectively with zero-knowledge proofs. The deciding vendor test is whether a platform can consume such a proof, verify it cryptographically, and still confirm a live, legitimate presenter, without demanding the underlying data and thereby destroying the privacy property the wallet exists to provide.

Run it in the POC: present a ZKP age proof from a test wallet on an attested device, then the same proof replayed from an emulator, then a valid attestation on a device that fails liveness. A ready platform passes the first and rejects the other two while touching no birthdate. Platforms that "support EUDI" by extracting full attestation data into their standard pipeline have missed the design, and European data protection authorities will eventually say so.

The calendar argument

Wallet availability lands within the quarter; meaningful adoption follows over 2027; acceptance obligations phase in behind adoption. That sequence tempts deferral, and deferral is the mistake: acceptance infrastructure, issuer policy, trust-list operations, ZKP verification, presenter binding, takes quarters to build and harden, and the institutions that build against launch-day wallets will set the examiner and DPA expectations everyone else inherits. The US just compressed the same curve: mDL guidance arrived September 8, and the banks with validation flows already running became the reference implementations overnight. Europe's version of that morning is roughly ninety days out.

Frequently Asked Questions

What is EUDI wallet readiness for a business?

The ability to accept a certified member-state wallet's attestations as verified identity: validating issuer signatures and revocation, consuming selective-disclosure and ZKP proofs, verifying the presenter with liveness, and routing non-wallet users through an equal-assurance fallback, all with an audit trail.

Which vendors support eIDAS 2.0 attestations today?

deepidv ingests eIDAS 2.0 attestations, mDLs, and ZKP tokens natively through Arc with per-issuer policy. 1Kosmos brings wallet-native architecture centered on its own credential ecosystem, and Sumsub supports credential acceptance through configurable workflows with customer-maintained policy. Verify external-scheme parity in any evaluation.

Do businesses have to accept the EUDI wallet in 2027?

Acceptance obligations under eIDAS 2.0 apply to relying parties in regulated sectors and phase in as national wallets launch, with the wallets themselves due from member states by the end of 2026. Practical exposure starts with digitally engaged customers presenting wallets from day one.

Can the EUDI wallet be used for age verification?

Yes, and that is its showcase use: a zero-knowledge proof of being over 18 (or any threshold) without revealing birthdate or identity. Verification platforms must be able to validate the proof cryptographically and confirm the presenter is live, without extracting the underlying data.

How does EUDI relate to US mobile driver's licenses?

Same architecture, different issuer: both are government-backed verifiable digital credentials validated by signature rather than by visual inspection. With US agencies approving VDCs for bank CIP compliance in September 2026, one credential-validation build now serves both regulatory systems.

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