Free Digital Product Passports
for OBADA DAO, ITADA, and Tradeloop Members
- 1. Upload your inventory.
- 2. Get an ISO 20435 Digital Product Passport for each device.
- 3. Give the device's USN and your key to your data-erasure or logistics vendor so they can update its passport (key access in development).
Each device gets one identifier, the OBADA Universal Serial Number (USN), designed so that any participating marketplace generates the same USN from its manufacturer, model, and serial number. Type in the USN to see the passport.

A pilot of The ITAD Association (ITADA) Standards Committee
How the Registry Works
Designed to give marketplaces a common source of truth for asset identity, while they continue operating independently. An ITADA Standards Committee pilot built on ISO 20435.
- 1
List the Asset
A reseller supplies the manufacturer, model, and serial number: by direct upload today, and through participating marketplaces once they are connected.
- 2
Generate the USN
The OBADA Universal Serial Number is derived deterministically, so every system that sees the same asset produces the same USN.
- 3
Register Once
The registry checks the USN and writes the record only if it is new, keeping one record per physical device instead of duplicate listings.
- 4
Share One DPP
Each registry record has a single ISO 20435 Digital Product Passport. Type in the USN and the DPP comes up.
Pilot status: no user accounts yet; records are not access-controlled; not for production use.
In development with the pilot: participating companies updating a device's passport with their own API key; ownership transfers recorded in the registry; and sold assets automatically delisted across participating marketplaces.
ISO 20435 is a guidance standard; an industry program can add certification on top of it, as e-Stewards did with ISO 14001.
Everything You Need
Register assets, look them up by USN, and validate Digital Product Passports
Register Assets
Upload CSV, JSON, or Excel files with manufacturer, model, and serial number. Each asset gets its OBADA USN and one registry record.
Browse the Registry
Search the OBADA DPP Registry by USN, manufacturer, or serial number and open any asset's Digital Product Passport.
Quick Start Guide
Quick guide for CSV uploads with QA validation. Perfect for getting started with DPP uploads.
Full API Docs
Complete DID API v3 reference with all endpoints, code examples, and ISO 20435 details.
CSV Format Guide
Learn how to structure your CSV files with required columns: manufacturer, partNumber, and serialNumber.
Automated QA Validation
Every upload goes through our comprehensive test suite that validates data integrity, generates cryptographic hashes, and registers DIDs following ISO 20435.
- 10 automated QA tests per upload
- Validation against the ISO 20435 data model
- Cryptographic hash tree generation
- DID registration and management
- Real-time test results
- Support for CSV, JSON, and Excel
10
Total
9
Passed
0
Failed
1
Skipped
Pilot in Development
The registry is in testing with a small group of ITADA and OBADA DAO members. Contact the ITADA Standards Committee to take part.
Contact the Standards Committee