- Identity verification in Web3: Secure validation of blockchain address ownership using cryptographic challenges.
- Authentication in linking processes: Use of nonce to ensure that the phone number and blockchain address belong to the same user.
- Integration with linking APIs: Complements the Blockchain Public Address API to ensure secure association.
Blockchain Public Address Validation
API Description
The “Blockchain Public Address Validation” API enables the generation of a one-time nonce challenge as part of the verification process to securely link a blockchain public address with a mobile phone number. This functionality is essential to ensure that both identifiers belong to the same user, enhancing authentication in decentralized environments.
This API is part of the CAMARA suite that bridges traditional identifiers (such as phone numbers) with decentralized identifiers (DIDs), facilitating interoperability between mobile network operators and blockchain platforms.
Use Cases
Benefits
- Enhanced security: Prevents fraudulent associations through cryptographic verification.
- Interoperability: Compatible with multiple operators and blockchain platforms.
- Privacy and compliance: Respects user consent and data protection regulations.
- Ease of implementation: Designed for seamless integration into existing authentication flows.
API Portfolio: Payments and Charging
SubProject Wiki: N/a, Independent Sandbox, See API Wiki
(incl. how to meet the team)
API Wiki: Blockchain Public Address
API Repository: Blockchain Public Address
API Repository Status: Sandbox
API Status: Initial
API Version(s) and Release Date(s):
- v0.1.0 (11.09.2025), Fall25 meta-release
API availability: Information which APIs are available in which country and network, and how to get access can be found on the GSMA public launch status page.