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7/13/2026
[Digital Certificate Wallet] Advanced: Building "Visitor-Endorsed Issuance" – A Full-Chain DID Application as Both Verifier and

[Digital Certificate Wallet] Advanced: Building "Visitor-Endorsed Issuance" – A Full-Chain DID Application as Both Verifier and

Short summary

A developer builds a full-chain DID application where a lobby reception desk acts as both verifier and issuer: it verifies an employee's digital credential, then issues a temporary visitor pass to the visitor's wallet. The article covers architecture decisions (static frontend + JSON API, abstracted wallet calls, in-memory state) and documents three real debugging pitfalls encountered during development. Code and a live demo are provided.

  • •Full-chain DID app combining verifier and issuer roles for visitor endorsement
  • •Architecture: static frontend, JSON APIs, abstracted wallet library, Cloud Run deployment
  • •Three debugging pitfalls documented including polling/status issues and credential presentation errors

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