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by intellirogue
1821 days ago
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It is cryptographically signed, so creating your own QR code that would be accepted by the apps would be difficult without the signing key. Even ignoring that though: including both the ID and detail allows it to work both ways. In official situations (e.g. at a country border) you might be able to validate against a server, but the local nightclub probably doesn't have access to a validation server. |
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