📜ICP
Integration of ICP for Fair Payments and Cross-Contract Calls
In this system, ICP (Internet Computer Protocol) is used to ensure fair and transparent payments when users access machine learning models or contribute to federated learning. The ModelStore contract interacts with a proxy contract via a cross-contract call to handle token transfers. This ensures that payments are processed securely and atomically, reducing the risk of fraud or disputes.
How Payments Work Using ICP and Cross-Contract Calls
User Requests a Model
A user who wants access to a model creates a proposal on the ModelStore contract and includes:
Receiver ID (account to receive the payment)
Amount (price of the model in tokens)
Cross-Contract Call to Transfer Tokens
Instead of directly transferring tokens within the ModelStore contract, a cross-contract call is made to a proxy contract.
The proxy contract manages the actual token transfer using ICP-based transactions.
Ensuring Fair Payments with ICP
The proxy contract interacts with ICP's ledger to transfer tokens from the Calimero contract (which holds the funds) to:
The model owner (as payment for access)
Other necessary parties (e.g., platform fees or staking rewards)
This ensures that the payment only happens if the model request is valid and approved.
Receiving ID and Amount in the Contract
The ModelStore contract must store and manage:
receiver_id: The account that should receive the payment.amount: The exact number of tokens to transfer.
When a payment proposal is approved, the contract initiates the cross-contract call to transfer the amount from the Calimero contract to the proxy contract, which then distributes the tokens.
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