The authentify-v2 smart contract is designed for managing the authentication and verification of products. It provides functionality for creating new products, licensing products to buyers, initiating and accepting product ownership transfers, and disputing product authenticity.
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Product Creation: The contract allows authorized entities to create new products by providing a unique product ID, name, and description.
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Product Licensing: Product creators can license their products to buyers, transferring ownership while maintaining a history of ownership changes.
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Ownership Transfer: Product owners can initiate a transfer of ownership to a new owner, requiring a 4-digit transfer code for the new owner to complete the transfer.
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Product Dispute: Product creators can dispute their products if there are issues, such as the product being stolen, lost, or damaged.
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Detailed Tracking: The contract maintains a comprehensive history of all product ownership transfers, allowing for full traceability.
(define-public (create-product (product-id uint) (name (string-ascii 50)) (description (string-ascii 256))))
This function allows an authorized entity to create a new product with the specified product-id, name, and description.
Example usage:
(create-product 1234 "Product A" "This is a sample product")
(define-public (license-product (product-id uint) (buyer principal))
This function allows the creator of a product to license it to a buyer, transferring ownership while maintaining a history of the transfer. It ensures that the caller is the product creator, the product is not already licensed, and the buyer is not the creator.
Example Usage
(license-product 1234 'ST1PQHQKV0RJXZFY1DGX8MNSNYVE3VGZJSRTPGZGM)
(define-public (initiate-transfer (product-id uint) (new-owner principal) (transfer-code uint))
This function allows the current owner of a licensed product to initiate an ownership transfer to a new owner, generating a 4-digit transfer code. It ensures that the caller is the current owner, the product is licensed, and the new owner is not the current owner.
Example usage:
(initiate-transfer 1234 'ST2PQHQKV0RJXZFY1DGX8MNSNYVE3VGZJSRTPGZM 1234)
(define-public (accept-transfer (transfer-id uint) (transfer-code uint))
This function allows the new owner to complete the ownership transfer by providing the correct 4-digit transfer code. It ensures that the caller is the new owner, the transfer request is still valid, and the provided transfer code matches the one stored in the system.
Example usage:
(accept-transfer 12345 1234)
(define-public (dispute-product (product-id uint) (dispute-code uint))
This function allows the creator of a product to dispute the product, marking it with a dispute code (e.g., stolen, lost, damaged). It ensures that the caller is the product creator and the provided dispute code is valid.
Example usage:
(dispute-product 1234 1)
The contract provides several read-only functions to retrieve information about products, licenses, and transfers:
(define-read-only (get-product-details (product-id uint)))
Retrieves complete details of a product using its ID.
(define-read-only (get-license-details (product-id uint)))
Returns the licensing information for a product.
(define-read-only (get-transfer-details (transfer-id uint)))
Fetches the details of a specific ownership transfer.
(define-read-only (get-ownership-history (product-id uint)))
Returns a chronological list of all ownership transfers for a product.
(define-read-only (get-all-transfers (product-id uint)))
Retrieves all transfer records associated with a product.
(define-read-only (get-transfer-proposal (transfer-id uint)))
Gets the details of a specific transfer proposal.
These functions allow querying the state of the contract and retrieving detailed information about specific products, licenses, and transfers.
The authentify-v2 contract includes several security measures, such as authorization checks, duplicate product ID prevention, ownership validation, transfer code validation, and transfer expiration handling.
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Multi-Signature Ownership: Implement a multi-signature system for managing product ownership and transfers, requiring approval from multiple authorized parties.
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Automated Dispute Resolution: Establish a process for automatically resolving product disputes, potentially involving a decentralized arbitration system.
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Royalty Payments: Integrate the ability for product creators to receive royalty payments on subsequent sales of their products.
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NFT Integration: Explore the possibility of representing products as non-fungible tokens (NFTs) to leverage additional functionality and interoperability.
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Batch Operations: Add support for batch product creation, licensing, and transfer operations to improve efficiency at scale.
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Reputation System: Implement a reputation system that tracks product authenticity, transfer history, and user reliability to enhance trust in the ecosystem.