1. India's National Digital Health Revolution
The Ayushman Bharat Digital Mission (ABDM), launched by the National Health Authority (NHA) of India, establishes an open digital health ecosystem. The foundational cornerstone of this architecture is Milestone 1: creating and validating a 14-digit Ayushman Bharat Health Account (ABHA) number for every citizen, creating a unified digital identity that connects health records across public and private hospitals nationwide.
2. ABDM Sandbox API Architecture
Integrating hospital registration terminals with the ABDM national gateway requires establishing secure, mutual TLS (mTLS) connections with NHA Sandbox and Production environments. All API calls require dynamic RSA-signed JWT client authentication and encrypted payloads adhering to national cryptographic guidelines.
3. The Aadhaar OTP Verification Workflow
During patient intake at hospital registration counters, the workflow proceeds as follows: 1. Patient provides their 12-digit Aadhaar number or mobile number; 2. Hospital system invokes the NHA /v1/registration/aadhaar/generateOtp API; 3. UIDAI dispatches a secure one-time password to the patient's linked mobile phone; 4. System transmits OTP via /verifyOtp; 5. Upon successful validation, the gateway returns patient demographic profile data and their unique ABHA ID.
4. Master Patient Index (MPI) Linking and Consent
Once generated, the ABHA number and ABHA address (e.g., patientname@abdm) are linked directly to the hospital's internal Medical Record Number (MRN) within the local database. This enables seamless patient identity verification and forms the prerequisite infrastructure for Milestone 2 (HIP/HIU health data exchange).
%20Creation){kind=link}