Concordium Launches ZK-Proof Age Verification App to Meet UK Regulations

Concordium, a layer-1 proof-of-stake blockchain platform, has launched a mobile application that enables users to verify their age without revealing personal identifying information. The app, available on iOS and Android, utilizes zero-knowledge proofs (ZK-proofs) to allow individuals to prove they are above a certain age threshold—such as 18—without disclosing sensitive data like name, date of birth, or nationality [1]. This development comes as the UK implements new regulations requiring online age verification for accessing certain content, a policy that has sparked significant public and privacy advocacy backlash.

The Concordium app generates an encrypted ID that users can present for age checks on third-party platforms. According to Concordium CEO Boris Bohrer-Bilowitzki, the absence of a reliable and privacy-respecting online age verification system has led to fragmented and often risky solutions. The company’s offering is positioned as a more secure and effective alternative [1]. Users can create a Concordium ID for a nominal fee of approximately $0.01, and the app verifies attributes like nationality and document type without exposing them to service providers [1].

The UK’s new age verification rules, which became mandatory on August 3, 2025, require users to confirm their age using government-approved ID to access content labeled as “adult.” Critics argue that the definition of “adult content” is overly broad and may include non-explicit resources such as Wikipedia [1]. In response, many users have turned to virtual private networks (VPNs) to bypass the checks, prompting officials to consider potential restrictions on such services [1].

Concordium’s approach is aligned with the UK’s Ofcom guidance, which permits “reusable digital ID wallets” that share only essential attributes, such as age verification [1]. The company has stated that it and its partners are actively engaging with Ofcom regarding the potential use of ZK-proof-based systems to meet the regulator’s requirements. This technology is also being explored more broadly, as demonstrated by Google’s recent integration of ZK-proofs into its Google Wallet for age verification, indicating growing interest in privacy-preserving digital identity solutions [1].

By leveraging ZK-proofs, Concordium aims to address both regulatory demands and user privacy concerns, offering a model for how online identity systems can balance compliance with data protection. As public concerns over surveillance and data exposure continue to rise, the company’s innovation may help shape future developments in digital authentication [1].

Source: [1] Concordium Launches Zero-Knowledge Age Verification App – Cointelegraph (https://cointelegraph.com/news/concordium-launches-zero-knowledge-age-verification-app)