Digital Product Passport verification

✓ Authentic passport, issued by DPP Fácil.

Product

Bobina de acero galvanizado

Brand

DPP Fácil

Serial no.

DEMO-ACERO

GTIN

8412345000072

Identifier (GS1 Digital Link)

https://dppfacil.com/01/8412345000072/21/DEMO-ACERO

Digital seal

a8fcf2e52dc3512aab81cc70574090199972a9a5f8eb7a70cfe5e708b6a2f203

Public-key signature (Ed25519)

Verifying the signature in your browser...

Beyond the internal seal, the passport carries a public-key signature (Ed25519). Anyone can independently verify —without trusting DPP Fácil— that this data was issued by the key holder.

clave pública · EfCOUcGqrKW7A2zVQadsWKDBNL8GxzCPXHuH75I6Iso=

What does this mean? The seal is a cryptographic signature (HMAC-SHA256) computed over the passport's official data with DPP Fácil's key. It confirms this passport is authentic and its data has not been tampered with. It does not use blockchain: it is a verifiable digital signature, at no cost or complexity for the brand, and ready for the European DPP registry once it comes into force.

See the full passport →