> For the complete documentation index, see [llms.txt](https://docs.optivalux.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.optivalux.com/for-partners/resale-and-platforms.md).

# Resale & Platforms

Resale is where product trust is most often tested. A buyer is asked to trust a stranger's photos and word about an item that may be worth a great deal. Optivalux is designed to give resale platforms, marketplaces and authentication services product-level evidence instead.

This page describes roles and intended integration points. It does not describe existing partnerships or live integrations.

> **Current stage:** platform integrations are not yet available. See [Current Stage](/getting-started/current-stage.md).

## What a platform can check

Before a sale, a platform (or a buyer) can check three separate facts about a product:

| Fact                     | Question                                                                    |
| ------------------------ | --------------------------------------------------------------------------- |
| **Authentication**       | Did the product's registered authenticator just answer correctly, and when? |
| **Certificate standing** | Is the brand's certificate Active, Suspended or Voided?                     |
| **Ownership**            | Is the product claimed, and is a transfer pending?                          |

Public verification never reveals **who** the owner is. It can show that the product is owned, not by whom.

### A verified-product badge that states what was checked

A platform can present a verified-product indicator that states **what was checked and when**, for example "Authenticator verified · certificate active · checked 14:02". It should not say "guaranteed authentic" or equivalent. See [Claims & Limitations](/trust/claims-and-limitations.md).

### Listing photos and QR codes are not verification

A QR code or link in a listing only locates the product's record. It proves nothing about the item being sold. Real verification requires tapping the product's authenticator, which in a listing context means the seller (or the platform's authentication staff) doing so with the product in hand.

## How ownership moves in a sale

A sale completes ownership transfer only when:

1. the **seller**, as current owner, authorizes the transfer to the named buyer;
2. the **buyer** accepts it;
3. the **buyer** verifies the product in hand.

This has direct consequences for platforms:

* **A seller who holds the item but does not own its certificate cannot complete the transfer.** A stolen product cannot be transferred by the thief.
* **The final step happens at hand-over**, when the buyer has the product. For shipped sales, the transfer completes on delivery, not at checkout.
* **There is no built-in waiting period** once all three conditions are met.
* A transfer **cannot complete while the certificate is suspended or voided**, or while the owner has reported the product lost or stolen.

## Authentication services and service centres

Organisations that inspect or service products can:

* **verify** products they handle against their registered identity;
* **take part in brand-assisted recovery** when the brand designates them, for example by fitting a replacement authenticator after inspection. The brand's security role still authorizes the recovery; the service centre does not gain that power itself.

## What platforms cannot do

* Transfer a product without the owner's authorization and the buyer's acceptance.
* Change a certificate's standing. That belongs to the issuing brand.
* See owners' personal information through public verification.

## Integration

Integration interfaces for platforms are not yet published. Platforms interested in shaping them can reach Optivalux through **Infrastructure partnership** on [Contact & Partnerships](/company/contact-and-partnerships.md).


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