Bhutan · Verifiable credentials

A trusted ledger for official documents.

Yigda lets approved institutions issue tamper-evident PDF documents, citizens hold them privately, and authorized companies verify authenticity in seconds — anchored to a public blockchain.

  • Anchored on Sepolia
  • Identity by Bhutan NDI
  • Admin-curated issuer registry
For citizens

Sign in with Bhutan NDI

Open your document vault, download credentials, and create scoped share links for verifiers.

Continue with NDI
For institutions

Official sign-in

Administrators, approved issuing organizations, and verifier companies sign in here.

Sign in
How Yigda works

Issue, hold, share, verify.

01

Issue

Approved organizations upload a PDF. Yigda hashes it and writes the fingerprint to a public chain.

02

Hold

The document lands in the citizen's NDI-verified vault. No PDFs leave the platform without consent.

03

Share

Citizens generate scoped, expiring links for a specific verifier company — no broad sharing.

04

Verify

Subscribed companies upload a PDF or open a share link. The chain confirms authenticity in one click.