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description: 'Fact Protocol Interface : (Proof of Message)'
---

# Proof of Message

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**Note**: Please read this section first > [wizard-bridge-evm-erc-20](wizard-bridge-evm-erc-20 "mention")
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## Fact Protocol Interface: (Proof of Message)

This is the Proof of Message system of Wizard Bridge EVM (ERC-20) | Fact Protocol Interface is a special innovation that was invented to allow smart contracts to connect and work together in different networks. With Proof of Message, it is a confirmation of the correctness of information. Successfully **completed transactions** **from&#x20;**<mark style="color:blue;">**bridgeOut**</mark>**&#x20;&&#x20;**<mark style="color:purple;">**bridgeIn**</mark> will receive information as a Message to receive and send to smart contracts in different networks in the destination to work together correctly.

![](https://2884502287-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FeFMiC9EfjVCYIxxTV9jF%2Fuploads%2FppBIfk12e4SEP2ZVv2LS%2FFlow-Proof%20of%20Message.png?alt=media\&token=a5e6863e-07e2-45d4-aa8a-2a4841f507ca)

<figure><img src="https://2884502287-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FeFMiC9EfjVCYIxxTV9jF%2Fuploads%2FagiIJmpvI931TrxyXBjl%2FSystem-proof.png?alt=media&#x26;token=03fed6bf-c801-4f45-9d22-441b913efe57" alt=""><figcaption></figcaption></figure>
