# FAQ

## About Sign Protocol

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<summary>What is Sign Protocol?</summary>

Sign Protocol is a suite of solutions that enable users and enterprises to create secure and verifiable attestations of claims or assertions, in the real world and on the web.

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<summary>Is Sign Protocol a blockchain?</summary>

No. Although Sign Protocol leverages certain underlying blockchains and blockchain-based infrastructure to deliver some of its functionalities, it is not a blockchain in and of itself.

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<summary>Is Sign Protocol dependent on any particular blockchain or blockchain-based runtime, such as Ethereum or the EVM?</summary>

As an omni-chain protocol, Sign Protocol is designed to be operational independent of any specific blockchain or blockchain-based runtime. Thus, it is readily portable for use in any blockchain environment.

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<summary>What is the difference between the EAS and Sign Protocol?</summary>

The EAS is limited to only EVM-based environments, whereas Sign Protocol is independent of any specific environment.

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<summary>What unique offering(s) does Sign Protocol bring to the world of Attestations?</summary>

One of the unique offerings we’re excited about is the Schema Registry and the ecosystem it will unlock for users and businesses.

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<summary>What blockchains are supported by Sign Protocol?</summary>

For the initial launch of Sign Protocol, we will have the necessary provisions to support Ethereum and EVM-based blockchains, TON, and Solana.

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<summary>What solutions can we build with Sign Protocol?</summary>

Sign Protocol can be used to build any solution that introduces verifiability and certifiable confirmation to trust-based systems, points systems, reputation systems, rewards systems, and more. You can learn more about this here.

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<summary>How will Sign Protocol drive users and activity?</summary>

We intend to seamlessly integrate Sign Protocol with some of the leading apps and experiences that users know and love today. More on this soon.

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## Open Contributions and Community

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<summary>Does Sign Protocol accept contributions from public?</summary>

We aspire to embody an open-source culture for Sign Protocol, welcoming and encouraging open contributions from the public, which is precisely how we achieve this.

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<summary>How can I stay up to date with all things Sign Protocol?</summary>

You can follow us on Twitter, Discord, Farcaster, and Github. You can also join Sign Protocol's channel on Farcaster.

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<summary>Where can I send my feedback and questions regarding Sign Protocol?</summary>

You can tag or direct message us with all your feedback and questions on our social channels.

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<summary>I really love Sign Protocol but I’m not a developer, how can I contribute?</summary>

We really appreciate the interest. As a non-developer, you can engage with and share our content, and even start making content of your own about Sign Protocol and your ideas about it. We also plan to release no-code tools that will allow you to build directly on Sign Protocol.

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<summary>As a developer, who may or may not have an existing project, app, or service, how can I contribute to Sign Protocol?</summary>

We’re really excited to see developer interests grow for Sign Protocol. We welcome devs to get in touch via our social channels on how to integrate their existing apps and services. We also encourage devs to make submissions that will improve Sign Protocol to our open-source repositories on GitHub.

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## Attestations in General

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<summary>What is an Attestation?</summary>

An Attestation is an act or process of witnessing and certifying the validity of a claim or assertion such as a story, an event, or even a legal document, such that said claim can be verified according to a ruleset for its authenticity by anyone at any time. In practice, this is implemented as a set of structured data containing proofs that is signed with a digital signature.

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<summary>What can I attest to?</summary>

You can attest to just about any claim or assertion that has been made by you or someone else, like a story or statement.

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<summary>Where do I make my attestations?</summary>

You can make attestations in one of two domains: On-chain, like on a blockchain, and Off-chain, like an online forum.

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<summary>How do I make an attestation?</summary>

Using a schema, you can provide the relevant data (evidence, cryptographic proofs, etc.) for your attestation and sign it with your digital key. Sign Protocol offers tools to facilitate this.

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<summary>What is a Schema?</summary>

A schema is the structure and configuration of data used to create a clear and verifiable attestation. You can learn more about schemas in [this article](https://medium.com/ethsign/schemas-the-blueprint-of-attestations-c6b0e6faf430).

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<summary>Can I make my own Schema, or find one to use?</summary>

Yes, you can! Sign Protocol offers the infrastructure, such as the Schema Registry, that will allow you to make and reuse (and even store) your schemas.

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<summary>What is a Schema Registry?</summary>

A Schema Registry is a central location where schemas are stored and referenced. The schema registry also offers guidelines and standards on how to make new schemas.

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<summary>Are Attestations tokens, like NFTs or cryptocurrencies?</summary>

No. Unlike NFTs and other tokens that exist as assets or value units on a distributed shared ledger, attestations exist as messages or statements in a data store.

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<summary>Can you edit or delete an Attestation?</summary>

Ideally, attestations are meant to be final and immutable to ensure honesty and avoid tampering. However, existing attestations can be disputed or revoked by newer attestations with valid evidence.

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