This section demonstrates how to register an IP Asset as a derivative of another. There are generally three methods of registering an IPA remix:

1. Link an existing IPA as a derivative of a "parent" IPA using a License Token.
2. Link an existing IPA as a derivative of a "parent" IPA directly.

Prerequisites

• Setup the client object.
• The "parent" IPA must be registered.
• The "child" IPA must be registered.

Register Derivative using License Token

Additional Prerequisites

• An already minted License Token from the "parent" IPA. Learn how to mint a License Token here.

If you already have a License Token, it is easier to register a derivative this way. We can register a child IPA as a derivative of a parent IPA by calling client.ipAsset.registerDerivativeWithLicenseTokens() like so:

response = story_client.IPAsset.registerDerivativeWithLicenseTokens(
    child_ip_id="0xDd4330c5aeA6ab3a3E9620D2c74799bAb3BD117D",
    license_token_ids=[1199]
)

print(f"Derivative IPA linked to parent at transaction hash {response['txHash']}")

RegisterDerivativeWithLicenseTokensRequest = {
    'child_ip_id': str,
    'license_token_ids': list,
    'tx_options': dict
}

RegisterDerivativeWithLicenseTokensResponse = {
    'txHash': str
}

Register Derivative Directly

You can also register a derivative directly, without needing a License Token. There is no real difference between registerDerivativeWithLicenseTokens (above) and registerDerivative (below) except that the former requires an already minted License Token and the latter is a convenient function that handles it for you.

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Quick Note

Remember that once License Terms are attached to an IP Asset, it becomes public to register a derivative with those terms, which is why you don't necessarily need a License Token first. Read more on that here .

response = story_client.IPAsset.registerDerivative(
    child_ip_id="0xc478561B1A18331d92b2b6f6a863dbAA874729c3",
    parent_ip_ids=["0x567603411Fb957759Ac2090659B73cC5f099456D"],
    license_terms_ids=[2],
    license_template="0x260B6CB6284c89dbE660c0004233f7bB99B5edE7"
)

print(f"Derivative IPA linked to parent at transaction hash {response['txHash']}")

RegisterDerivativeRequest = {
    'child_ip_id': str,
    'parent_ip_ids': list,
    'license_terms_ids': list,
    'license_template': str,
    'tx_options': dict
}

RegisterDerivativeResponse = {
    'txHash': str
}