01
Scan the tag
Every product carries one: a printed code on the swing tag, or a chip sewn into the seam. A phone camera is the whole reader.
Products outlive companies.Their passports should too.
Scan a product and see its recorded life: what it is made of, where it came from and everything recorded since. The record is public, held on a public blockchain rather than in one company’s database, and anyone with a copy of its evidence can still check it after that company is gone.
- Cheap
- Scalable
- Independent
- Offline verifiable
- Open to any reader
Build your own compatible application or service using the DPP standard, specifications and examples.
In retail
Checks out
Yellow Jersey, 2002
Maglia Sportiva, Textiles
Made in Como, Italy2002
Sold by Maglia Sportiva2003
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How it works
From a tag on the label to the whole story.
02
Read its story
What it is made of, where it was made, and everything recorded since: serviced, handed on, repaired, repurposed, recycled.
03
Check it yourself
Every entry names who it was written for and, once published, carries a reference you can follow to the public record.
See how to check oneWhy it holds up
Six reasons a passport on a public blockchain holds up.
- Cheap
- A fraction of a cent in network fees to publish a passport. Reading and checking one costs the reader nothing.
- Scalable
- Built on BSV. Each unit has its own record, and the network fee is charged by size, so it does not rise with the number of units you publish.
- Independent
- No account and no permission from us. The check runs in your own browser, and its two key checks ask a public source we do not run.
- Offline verifiable
- Each record carries its own proof, so a saved copy can be checked without our services, against block headers you hold. Seeing later changes needs a connection.
- Open to any reader
- An open standard, GS1 identifiers and a public blockchain, so any software that follows the standard can read and check the record, not only ours.
- Products outlive companies
- Batteries and garments stay in use for years. The record stays readable after its issuer is gone, for as long as someone keeps a copy of its evidence.
Batteries
A passport for your batteries: chemistry, carbon class, recycled content, with deeper detail for approved service partners.Chemistry, carbon class, recycled content. Deeper detail for service partners.
Mandatory in the EU from 18 February 2027 for electric vehicle and light transport batteries, and industrial batteries above 2 kWh. The profile maps to the regulation and runs here today; the mapping is not yet assessed and does not qualify a battery.
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Textiles
A passport for garments: fibres, origin, care, and a life story that moves with each owner.
Mapped to the Ecodesign Regulation’s general passport requirements and EU textile labelling law. Textile-specific data requirements are not set yet.
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Collectibles & Consumables
For everything else: any product with a story worth keeping. A handbuilt bicycle, a violin, a watch.
Shared lifecycle rules and GS1 Digital Link identifiers, though no delegated act covers these yet.
Open a passportWho it is for
One record, read four different ways.
Where the record starts
Manufacturers
Record what you made, once, at the line. Every claim stays checkable as the product changes hands.
Read the pageWhere the story is authoredBrands
Your product’s story, told by the product itself. One page a customer opens from the label and checks for themselves.
Read the pageWhere the product changes handsRetailers
Know what is on your shelf before it arrives. Check who signed a supplier’s claims, and that nothing was changed, in seconds, then hand the record on at the till.
Read the pageWhere the record is readConsumers
Scan the label and read the recorded life of what you own: what it is made of, who made it, and its history when you pass it on.
Read the pageGo further
Three arguments worth the time.
Independence
The proof has to outlive the software.
A battery lasts fifteen years and a coat lasts thirty. Both will be asked to prove what they are long after somebody’s software has been switched off, so the proof cannot live inside anybody’s software, including ours.
Why checking it does not depend on us
Verification
Five checks, and two of them we cannot influence.
Three read our own copy of the record. Two go to services we do not run, which is the difference between a result you can rely on and a company assuring you of something.
See how the check works
For publishers
Publish once, and let the product answer for itself.
What the coming obligation asks for, which fields it covers, and what it takes to put your products on an open standard rather than inside somebody else’s platform.
Read the commercial case
Who sees what
One passport. Every reader gets their own page.
| What the passport holds | Anyone with the tag | The owner | A service partner |
|---|---|---|---|
| Published to anyone | |||
| Materials and composition | Sent to this reader | Sent to this reader | Sent to this reader |
| Maker, place and date | Sent to this reader | Sent to this reader | Sent to this reader |
| Care, repair and end of life | Sent to this reader | Sent to this reader | Sent to this reader |
| Its life so far, and proof the record is intact | Sent to this reader | Sent to this reader | Sent to this reader |
| Kept for the owner | |||
| Purchase and warranty details | Not sent | Sent to this reader | Not sent |
| Sent on approval | |||
| State of health, dismantling and declarations | Not sent | Not sent | Sent to this reader |
The record behind it
A record that still holds up years from now.
01
One record per unit
Created when the maker registers the unit and named by the identifier on its tag. If two records claim the same identifier, a reader is told rather than handed one.
02
Nothing quietly rewritten
Once published, an entry cannot be edited, and removing one from the middle would show. A correction is a new entry that follows the one it changes, so both stay readable.
03
Verifiable without us
Each entry carries its own reference. Follow it to the public record and check that the entry there is the same, with no account and no permission from this platform.
Sample record, for illustration
Entry 2 of 4
Passport IDdpp.bsvb.net/01/09524182035762/21/15F6F778F0B0
Maker’s identitydid:bsv:bb97…45d8
OwnerPer-passport key
EventServiced by Nordwind
Recorded18 Mar 2022, 14:35 UTC
Reference329346…3ec2d
StatusConfirmed
On the passport, one line: Serviced by Nordwind, March 2022.
Five things anyone can check, in their own browser
- Which key signed each entry
- That a publisher the index names stands behind it
- That no step is missing from the middle
- That every entry is in a block
- That an outside source shows the same record
What it is built on
IdentifiersGS1 Digital LinkCredential referenceVSC draftIdentitiesdid:key, did:web and did:bsvRecordPublic BSV Blockchain
Who writes to it
Eight parties, one record, and none of them can rewrite it.
Anyone who handles a product can sign a claim about it without controlling the passport. Nobody can overwrite what somebody else put there, which is what makes the whole of it worth reading.
Publish a sample passport.
Create a brand and publish a sample passport in a couple of minutes. It is a real, public record on the BSV blockchain, marked as sample data, and anyone can check it as soon as it is written. Nothing goes out until you choose.