3/6 ✅ SOLUTION: Hybrid two-layer architecture

LAYER 1 - Classical PKI:
• X.509v3 certificates for legal entity identification
• Compatibility with existing PKI infrastructure
• Familiar trust mechanisms for IT teams

LAYER 2 - VDRs/EBSI (dPKI):
• Governance authorisation in verifiable registries
• DISINTERMEDIATED verification (no "phone home")
• Automatic cross-border interoperability via EBSI Trusted Issuers Registry

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