ActivateDigital Knowledge
Evidence Home
How you know a product fact is true, and what to do when evidence disagrees
Most product data systems carry two states. There is a value or there is a blank, and the blank means nothing in particular.
- Last verified
- · 29 answers in this home
01 · The decisions
The questions this home answers
1Passport Evidence: How We Know, and What a Blank MeansMost product data systems carry two states. There is a value or there is a blank, and the blank means nothing in particular.Read the answer 2When a Test Contradicts a Supplier DeclarationAn accredited result that differs from a supplier's composition statement is not automatically a contradiction.Read the answer 3What You May Publish When You Do Not KnowThe answer is not no. Named instruments in EU law already carry worked patterns for saying, on a label and in a regulated document, that part of something is not known, and the pattern they use is consistent: the unknown is…Read the answer
02 · Your route
Start from where you are
Brand with a PIM or ERP
You hold most facts. The job is ownership.
Small business
You hold more than you think.
Seller or importer
The platform or the buyer asks before the law does.
Supplier or maker
Your evidence is what the brand will need.
See what your own product's passport would look like
Give us one product. We work out what applies and ask only what we cannot resolve.
Keep up when a date moves
Every change we record, with the date and the page it changed.
See every change03 · Everything in this home
The full map
Evidence
- Passport Evidence: How We Know, and What a Blank Means
- Identity Preserved to Book-and-Claim: What Each Chain of Custody Proves
- Chemical Data, and Whether It Reaches the Garment
- What a Passport Field Can and Cannot Prove
- When a Test Contradicts a Supplier Declaration
- Certificates, Declarations and Test Reports
- Durability and Repairability in a Textile DPP
- Carbon, Water and Environmental Data in a Textile DPP
- How Should Product Evidence Travel Downstream?
- Steel and Aluminium Carbon Data: EPD, PCF, CBAM and Facility Emissions
- Who Owns a Published Product Fact
- DPP Proof of Registration: What It Actually Proves
- What a Recycler Can Actually Use
- What Repair Information Can a Digital Product Passport Actually Provide?
- Which Product Facts Can a Small Business Verify Itself?
- What You May Publish When You Do Not Know
- Getting Evidence Out of Suppliers
- What Does a Verifiable Credential Actually Prove?
- EPREL: What a Mandatory EU Product Register Produced
- Product QR Code Scan Rates: What the Measurements Show
- DPP Registry Records: Your Audit Trail and Personal Data
- When the Certification Scheme Behind a Claim Is Replaced
- Publishing a Textile Certification for Machines
- Where Does a Product Fact Become True?
- Who Checks DPP Information? Registry, Conformity and Market Surveillance