---
updatedAt: 2025-05-19T20:52:39.000Z
agentTools:
  projectIndex: https://docs.arianee.org/llms.txt
---

# service-provider

The service-provider is a library for services and applications that need to use <<glossary:SST>>, a type of token that can be used to share the content and transfer rights of a DPP on the Arianee protocol without losing ownership.

## Transfer digital passport using SST

To transfer a digital passport, the Smart Asset Sharing Token (*SST*) is checked if valid then operates a transfer from a `userA` to `userB`.

## How to operate a transfer?

> ⚠️
>
> The SST must be valid to operate get valid transfer permit. If not, one of these issues may be encountered:
>
> * The SST has expired (default value is 30 days).
> * The passport linked to the SST has been transferred by the owner to another user.
> * The SST has already been used.
> * Wallet initiating the transfer needs to have gas token to pay the transaction. Arianee Faucet does not fund this transaction.

### Prerequisites

* SST generation. Refer to [token-provider documentation](https://docs.arianee.org/docs/sst-token-provider) for more information.

<br />

### Get started with Arianee's recipe 🚀

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  emoji="✈️" 
  id="6718f5c0f0c04600209dc2a8" 
  link="https://docs.arianee.org/v2.2/recipes/transfer-dpp-using-sst" 
  slug="transfer-dpp-using-sst" 
  title="Transfer DPP using SST" 
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