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Adding code example for smart signatures to check genesis hash. #1218

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Jan 12, 2024
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Adding code example for smart signatures to check genesis hash. #1218

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11 changes: 11 additions & 0 deletions docs/get-details/dapps/smart-contracts/guidelines.md
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Expand Up @@ -387,6 +387,17 @@ These guidelines are specific to smart signatures. They complement the other gui
* Be careful about the fact that the same smart signature can be used in multiple networks.
* For instance, if a smart signature is signed with the intent of using it on TestNet, that same transaction can be sent to MainNet with that same smart signature.
* Always use new accounts when using TestNet (or any other network) to avoid reusing the same account that signed a smart signature.
* Make sure to write a smart signature that checks which network it is being run on. You can use:

=== "PyTeal"
```py
Global.genesis_hash()
```

=== "TEAL"
```teal
global GenesisHash
```

## Additional resources

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