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Zero Stone

Tech & Security Team

I break down the standards and security behind digital badges - Open Badges 3.0, DID, ISO 27001 - in practical, plain terms.

6 posts

The complete Open Badges 3.0 guide: how it differs from W3C Verifiable Credentials

Open Badges 3.0 wraps W3C Verifiable Credentials with an education-specific metadata layer, replacing platform-dependent verification with cryptographic signatures that let learners own and selectively disclose their credentials.

Tech & Policy Public sectorUniversities

Why ISO 27001 (Information Security) Certification Is Essential for Digital Badge Platforms

Digital badge platforms must hold ISO 27001 certification because learner credentials are lifelong career assets - any forgery, leakage, or outage directly harms individuals, not just institutions.

Tech & Policy Public sectorUniversities

A New Standard for the AI Era: Digital Identity Verification

Personhood Credentials let users prove their humanity online without exposing personal data, and digital badge platforms like Kolleges are positioned as a key asset for this emerging trust layer.

Tech & Policy Public sectorUniversities

How to Issue Digital Badges and Store Them Safely (feat. IPFS)

Digital badges become tamper-proof Verifiable Credentials by combining JWT cryptographic signatures with IPFS distributed storage, letting anyone verify authenticity via a content-addressed CID link.

Tech & Policy Public sectorUniversities

Digital Badges: How Is a DID Created and Stored?

Kolleges generates DID-based digital badges using the did:key method with RSA key pairs - storing only the public key server-side while delivering the encrypted private key to the user for self-custody.

Tech & Policy Public sectorUniversities

What Is DID - Managing Digital Badges with Decentralized Identity

Kolleges builds digital badges on DID using the did:key method, so both issuers and recipients hold cryptographic key pairs that let anyone verify badge authenticity without a central server.

Tech & Policy Public sectorUniversities

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