Google Wallet Adds Zero-Knowledge Proofs to Verify Your Age Without Sharing Personal Data

Edyme

May 5, 2025

Google introduces blockchain-based zero-knowledge proof (ZKP) age verification to its Wallet service, starting with apps like Bumble.

Background

Google announced a new upgrade to its Wallet service that leverages zero-knowledge proofs (ZKPs) to verify users' ages without exposing personal data such as birthdates.
The system uses blockchain-based ZKP technology, a privacy-preserving method that confirms facts (like being over 18) without revealing the underlying information.
This move addresses growing demands for secure digital identity tools across age-restricted platforms, including dating apps, e-commerce sites, and social media.

Privacy-preserving identity solutions are gaining traction as regulatory pressure around digital privacy intensifies globally.
By integrating ZKPs into a mainstream product, Google marks a significant step in bringing advanced blockchain tech to everyday users.
This could also drive broader Web3 adoption by familiarizing millions with real-world applications of cryptographic tools, without needing to understand the underlying mechanics.

“We wanted to develop a system that not only verifies age, but does it in a way that protects your privacy.”

The company confirmed Bumble will be among the first partners to implement the ZKP-based system, enabling users to verify their age without uploading ID documents.
Google emphasized that the system functions across platforms using its Digital Credential API, meaning other apps and websites can integrate the functionality for seamless verification.

Zero-knowledge proofs are widely viewed as one of the most promising innovations in cryptography, but adoption has remained largely confined to niche blockchain circles.
By embedding ZKPs into Google Wallet, a widely used mobile service, the tech giant is mainstreaming a blockchain solution without requiring users to engage directly with crypto.
This development arrives amid growing interest in decentralized digital identity frameworks, including from companies like Microsoft and Apple, and could signal broader shifts in how identity is verified online.
With the privacy-first age verification now live, Google may soon roll out additional ZK-based features, creating a ripple effect across industries where identity verification is both sensitive and essential.