ESPR
What Is a JRC Preparatory Study and How to Follow One
A year or two before the delegated act, the first version of the data fields shows up in JRC reports. Learn to read the study and contribute to it.
Blog
DPP standards (EN 1821x)
What the CEN/CENELEC JTC 24 standards — EN 18216, 18219, 18220, 18221, 18222, 18223, 18239 and 18246 — mean in practice.
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Articles in this topic 33 articles
ESPR
What Is a JRC Preparatory Study and How to Follow One
A year or two before the delegated act, the first version of the data fields shows up in JRC reports. Learn to read the study and contribute to it.
Electronics
EPREL, the Energy Label and the DPP
EPREL is a database, the DPP Registry is an index. One product can be subject to both; here is how to serve both from a single QR.
Iron & Steel
Steel DPP Data Fields: Scrap, Route, Carbon
The steel delegated act is not adopted yet, but the core fields are predictable: route, scrap share and carbon per tonne. Build the evidence now.
Battery
Battery Passport Technical Design (Article 78)
Article 77 says what the passport is; Article 78 says how it must work. A short article that dictates the entire architecture of a passport platform.
Battery
The Battery Pass Data Model and Catena-X
Annex XIII says what the passport contains, not the unit, data type or definition. The models that fill that gap, and how a platform reduces them to one canonical model.
Battery
Battery Passport Granularity: Cell, Module, Pack
The passport belongs to the individual battery, not the model. The modules and cells underneath the pack are a separate design question for identity and data.
Verification
DPP Verification, Trust and Digital Signatures
A passport is only valuable if it is trustworthy. We explain the digital-signature and versioning mechanisms that prove data was not tampered with.
Security
Data Persistence and Backup Providers
Companies close, platforms change, domains lapse. The passport still has to be there.
Standards
What Is UNTP (the UN Transparency Protocol)?
The DPP's global, decentralised cousin — and why it matters in cross-border trade.
Standards
Restricted Data Tiers and Authorised Access (EN 18239)
Not every piece of data must be public. Restricted tiers and authorised access strike the balance between transparency and trade secrets.
Verification
DIDs: Decentralized Identifiers in a DPP
An identity verifiable without a central registration authority. Where it genuinely helps in a passport.
Verification
Verifiable Credentials for the Digital Product Passport
The technology that closes the gap between a declaration and proof. Signed supplier data makes audits far easier.
Integration
What Is JSON-LD, and Why Use It for DPP Data?
The same JSON, but JSON whose meaning machines know. Why linked data pays off in a passport.
Standards
CEN/CENELEC JTC 24 and the M/604 Request
The standards did not appear from nowhere. Knowing who wrote them, under what mandate, shapes your compliance strategy.
Standards
EN 18246: Data Authentication and Integrity
Who guarantees the data in a passport is genuine? This standard defines the signature and integrity layer.
Standards
EN 18223: The Core Data Model and Semantics
This is the base of the standards family: what the words and fields actually mean.
Standards
EN 18222: Passport APIs and Lifecycle
The concrete questions to ask a DPP platform come straight out of this standard.
Standards
EN 18221: Data Storage and Archiving
A passport can outlive your company. The persistence obligation is exactly about that.
Standards
EN 18216: Data Exchange Protocols
The standard that defines how passport data moves on the wire — the first text your integration team should read.
Standards
EN 18219: Unique Identifiers for the DPP
The first decision in a passport: how will you name the product? Five accepted schemes and which one fits you.
Standards
IEC 61406 Identification Links for Machinery
The industrial world's own identifier standard: self-issued, URL-shaped and printable on a nameplate.
GS1 Digital Link
Data Carriers: QR, Data Matrix and NFC/RFID
Access to the passport starts with a carrier. We compare the differences between QR, Data Matrix and NFC — and the right choice.
GS1 Digital Link
DPP with GS1 Digital Link and QR Codes
GS1 Digital Link lets a single QR code route both consumer and machine to the right data. The passport's linking backbone.
Data Carriers
Data Matrix and Direct Part Marking (DPM)
Where labels do not survive, the code goes into the part itself. The rules of DPM from steel to electronics.
Standards
The EN 18219 / 18221 / 18222 Standards Family
The DPP rests not on a single standard but on a complementary family: data model, access, unique identity and interoperability.
Data Carriers
NFC and RFID for the DPP: When Do They Make Sense?
QR is the default carrier, but not always the best one. The three scenarios where NFC and RFID genuinely win.
Data Carriers
DPP QR Codes: Size, Placement and Print Quality
An unreadable QR is a non-existent passport. Practical rules from module size and contrast to placement and durability.
GS1 Digital Link
What Is a DPP Resolver Service?
Your label stays on the product for a decade; your backend does not. A resolver exists to solve exactly that problem.
GS1 Digital Link
What Is a GTIN, and How Do You Get One for a DPP?
The number under your barcode can also be the basis of your DPP identifier. The practical rules for getting GTINs right.
Standards
What Is EN 18220? Data Carrier and Access
EN 18220 defines 'how' the passport is accessed: free, app-free, smartphone-readable. The standard's core principles.
Digital Product Passport
The Passport Lifecycle: Create, Update, Archive
Publishing the passport is not the end. Version management, update triggers and the archiving obligation.
Digital Product Passport
Model, Batch or Item: Choosing DPP Granularity
Granularity is the single technical decision that most shapes the cost and the capability of your DPP programme.
Digital Product Passport
How a Digital Product Passport Works
What actually happens when a consumer scans the code? We walk the whole chain from identifier to resolver, access tiers and registry.