Cparts | Digital passports for spare parts
CChainREAL SPARE PARTS. DIGITAL HISTORY.
A workbook ↘02 CPARTS / PRODUCT PASSPORT
The spare part is the starting point.
Sources tell the story.
A readable record linking product information, evidence, and lifecycle notes, always showing provenance.
Inside a product passport
Product identity
- Product
- Car headlight
- Purpose of the record
- Illustrative passport structure
- Unit identifier
- Not provided in this example
- Condition
- Not assessed
The illustrated headlight shows the interface. It is not an inspected item or a sales offer.
Every piece of data has a source.
-
Photographic evidence
Original photographs, author, and capture date when available.
-
Technical documentation
Identified manufacturer documentation or inspection report. Catalog data is listed separately.
-
Blockchain reference
Independently verifiable references to network, contract, token, and transaction.
-
Commercial data
The original product page and current terms. A price is not an appraisal.
A history with dates and context.
-
Create the record
Identify the source and record the first documented version.
-
Add evidence
Keep the author, date, and scope of each new note.
-
Record a lifecycle event
Document an inspection, transfer of ownership, or delivery once verified.
-
Verify the current condition
A historical entry does not guarantee its current condition.
This is the proposed workflow, not an active service. Documents and personal data remain outside the public ledger.
NFT ≠ A SECOND PHYSICAL ITEM
One unit. One right to delivery.
-
1
Identify and reserve
Document a real unit and its allocation.
-
2
Read the offer
The terms specify what the NFT purchase includes.
-
3
Request delivery
A verified sale can trigger a single right to physical delivery.
-
4
Preserve the history
Subsequent NFT transfers do not generate another delivery.
A token or QR code alone cannot authenticate a physical spare part. Unit identification, inventory checks, and verifiable evidence are still required.
WHAT CAN CHANGE?
The ledger and the document
are distinct layers.
Confirmed blockchain transactions form a history. An NFT’s image or metadata can still change if the contract and permissions allow it.
The proposed CChain ledger distinguishes initial commitments from subsequent lifecycle notes. Every correction should be attributable.
Read the research on update permissions →