# Introduction

This documentation aims to provide technical information regarding all Signature Chain's functionalities.

The Signature Chain Web Application is available at <https://www.sign-web.app> and allows anyone to certify any file and/or document in any size and type. It also offers features such as Email Certification and Multi-Party Agreement signature requests.

Signature Chain received two grants and received an official page on the official Waves Blockchain website under the certification use case.\
To learn more about Signature Chain, please visit our website: <https://www.signature-chain.com>

## GLOBAL

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[Getting started](/getting-started.md)
{% endcontent-ref %}

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[Login / Account](/login-account.md)
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[Overview](/overview.md)
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## WALLET

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[Receive](/wallet/receive.md)
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[Send](/wallet/send.md)
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[Mass Send](/wallet/mass-send.md)
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## CERTIFICATION

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[File Certification](/certification/file-certification.md)
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[Email Certification](/certification/email-certification.md)
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[Multi-party Agreement](/certification/multi-party-agreement.md)
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[Verification Explorer](/certification/verification-explorer.md)
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## BUYING OPTIONS

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[With Waves](/buying-options/with-waves.md)
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[With FIAT](/buying-options/with-fiat.md)
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[With USDN](/buying-options/with-usdn.md)
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## DEVELOPERS

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[Technical details](/developers/technical-details.md)
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[SIGN API](/developers/sign-api.md)
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[3rd Party Integration](/developers/3rd-party-integration.md)
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## OTHERS

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[Contact-us](/contact-us.md)
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---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.sign-web.app/master.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.