Nfts

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Calls

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validate_mint

Validates the proofs provided against the document root associated with the anchor_id. Once the proofs are verified, we create a bundled hash (deposit_address + [proof[i].hash]) Bundled Hash is deposited to an DepositAsset event for bridging purposes.

Adds additional fee to compensate the current cost of target chains # <weight> - depends on the arguments # </weight>

Attributes

Name	Type
anchor_id	SystemHashOf<T>
deposit_address	DepositAddress
proofs	Vec<Proof<HasherHashOf<BundleHasher>>>
static_proofs	FixedArray<HasherHashOf<BundleHasher>, 3>
dest_id	<T as Config>::ChainId

Python

call = substrate.compose_call(
    'Nfts', 'validate_mint', {
    'anchor_id': '[u8; 32]',
    'deposit_address': '[u8; 20]',
    'dest_id': 'u8',
    'proofs': [
        {
            'leaf_hash': '[u8; 32]',
            'sorted_hashes': [
                '[u8; 32]',
            ],
        },
    ],
    'static_proofs': '[[u8; 32]; 3]',
}
)

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Events

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DepositAsset

Attributes

Name	Type	Composition
None	<T as frame_system::Config>::Hash	[u8; 32]

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Constants

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NftProofValidationFeeKey

Additional fee charged for validating NFT proof (when minting a NFT).

Value

'NftProofValidation'

Python

constant = substrate.get_constant('Nfts', 'NftProofValidationFeeKey')

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ResourceHashId

Resource hash id.

This type was initially declared in the bridge pallet but was moved here to avoid circular dependencies.

Value

'0x0000000000000000000000000000000cb3858f3e48815bfd35c5347aa3b34c01'

Python

constant = substrate.get_constant('Nfts', 'ResourceHashId')

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Errors

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DocumentNotAnchored

A given document id does not match a corresponding document in the anchor storage.

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InvalidProofs

Unable to recreate the anchor hash from the proofs and data provided.

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