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One unit. Its own history.
The whole journey follows the same product and its record.
Who contributes or decides: Programme participant.
What changes: The unit to be identified is defined.
Illustration. It does not depict a real Traza installation or product.
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Before the code, an accountable party.
The participant joins and describes the product.
Who contributes or decides: Participant and programme owner.
What changes: An accountable party, the description and the identification rules are linked.
Participant: Defined responsibilities and permissions.
Product: Description and declared data.
Registering information does not by itself prove that the object matches it.
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The identity is issued.
The identifier is linked to the unit record.
Who contributes or decides: Issuer authorised by the programme.
What changes: Narrative state: issued. This does not yet imply application or activation.
Identity: Issued · not yet applied.
The signature attests issuer and data integrity. It does not prevent physical copies.
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Applied does not mean active.
The mark is applied to the object; activation is still pending.
Who contributes or decides: Person responsible for application on the line.
What changes: Application is recorded separately from authorisation to activate.
Application: Mark applied to the object.
Activation: Pending · not yet active.
These states are a narrative proposal; they do not extend the verification engine.
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Activation has a condition.
After production, the owner completes lot and expiry before activation.
Who contributes or decides: Authorised role under the programme rules.
What changes: The state changes from pending to active and the change is documented.
Narrative state: Active · change documented.
Illustrated transition. No activation date or real authorisation is invented.
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One lot. Distinct identities.
Each medicine package keeps its own QR; the lot provides shared context.
Who contributes or decides: Responsible manufacturer or importer.
What changes: The record links each unit to product, lot and expiry.
Product: Oral solution · 120 ml; declared concentration and health registration.
Lot: Shared production and expiry context.
Unit: Its own QR on the carton or bottle.
This link does not record transport, distribution or sales.
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Closing production activates the units.
The issuer confirms which codes were used when the run ends.
Who contributes or decides: Production owner.
What changes: Used codes become active; unused codes are voided when the issuance closes.
Used code: Activated after completing the record.
Unused code: Voided when the issuance closes.
Printing a code alone does not show that the unit is activated.
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A gap needs context.
The record is incomplete. Let us review the reason and the expected coverage.
Who contributes or decides: Participants providing events and the review team.
What changes: Received events are compared with what was expected to be recorded.
State: Event not received.
Review: Pending synchronisation, a documented exception or another reason to establish.
An event not received is a state, not a cause. A gap does not prove fraud.
Issuance, printing and record closure are reviewed. Missing activation requires checking the run; the registry cannot establish logistics movements.
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Four readings. Different limits.
The lookup separates the evidence; it does not give an authenticity score.
Who contributes or decides: Person looking up and comparing the product.
What changes: Available information is shown without conflating the checks.
Signature: Issuer and integrity of the signed data. It does not prevent physical copies.
Registry: Identifier found and declared status. Does not demonstrate location.
Data: Information to compare. The person checks whether it matches the product.
Signals: Patterns in the available records. No alerts does not mean no risks.
The lookup does not certify physical authenticity.
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The same unit, with more history.
A signal helps prioritise review. It does not make an accusation by itself.
Who contributes or decides: Review or inspection role, according to the programme.
What changes: The review and its documented outcome are added to the record.
Signal: An observation that merits review.
Outcome: Documented human decision; not an automatic verdict.
Example: the outcome may confirm or correct the state. It does not modify the record.