Abstract: Fingerprinting physical items to mint NFTs is described. One or more features of a physical item are captured using a fingerprint capture system of a client device, and a fingerprint of the physical item is generated using the captured features of the physical item. The fingerprint of the physical item is provided to an authentication service to verify that the physical item corresponds to an authentic physical item by matching the fingerprint of the physical item to distinguishing features of the authentic physical item. Responsive to verification by the authentication service, a digital twin NFT is minted on a blockchain using the matched fingerprint. A combined listing for the physical item and the digital twin NET is then generated on a listing platform.

Abstract: Techniques are described, as implemented by computing devices, to control access to transactions through use of tokenized reputation scores. This is performed by leveraging a blockchain such that a tokenized reputation score is generated or calculated based on an amount of reputation tokens associated with a blockchain account address associated with a service provider account, and by making transactional functionality available to the service provider account based on a comparison of a tokenized reputation score affiliated with the service provider account with a threshold score associated with a transaction.

Abstract: Fingerprinting physical items to mint NFTs is described. One or more features of a physical item are captured using a fingerprint capture system of a client device, and a fingerprint of the physical item is generated using the captured features of the physical item. The fingerprint of the physical item is provided to an authentication service to verify that the physical item corresponds to an authentic physical item by matching the fingerprint of the physical item to distinguishing features of the authentic physical item. Responsive to verification by the authentication service, a digital twin NFT is minted on a blockchain using the matched fingerprint. A combined listing for the physical item and the digital twin NET is then generated on a listing platform.

Abstract: Techniques are described, as implemented by computing devices, to control access to transactions through use of tokenized reputation scores. This is performed by leveraging a blockchain such that a tokenized reputation score is generated or calculated based on an amount of reputation tokens associated with a blockchain account address associated with a service provider account, and by making transactional functionality available to the service provider account based on a comparison of a tokenized reputation score affiliated with the service provider account with a threshold score associated with a transaction.

Abstract: Techniques are described, as implemented by computing devices, to control access to transactions through use of cosigning based on tokenized reputation scores. This is performed by leveraging a blockchain such that tokenized reputation scores are generated based on amounts of cryptographic reputation tokens associated with blockchain account addresses associated with applicant and co-signer service provider accounts. Transactional functionality is made available to an applicant service provider account having an insufficient tokenized reputation score by using a co-signer service provider account having a sufficient tokenized reputation score to at least partially back an obligation of the applicant service provider for a transaction.

Abstract: Techniques are described, as implemented by computing devices, to provide digital content to users through use of nonfungible tokens (NFTs). This is performed by leveraging a blockchain such that digital content associated with an item is made available to encourage the user to interact with NFTs on the service provider platform (e.g., discounts, NFT listing functionality, automatic initiation of NFT transfers, and so forth) based on a user's possession of the NFT.

Abstract: Fingerprinting physical items to mint NFTs is described. One or more features of a physical item are captured using a fingerprint capture system of a client device, and a fingerprint of the physical item is generated using the captured features of the physical item. The fingerprint of the physical item is provided to an authentication service to verify that the physical item corresponds to an authentic physical item by matching the fingerprint of the physical item to distinguishing features of the authentic physical item. Responsive to verification by the authentication service, a digital twin NFT is minted on a blockchain using the matched fingerprint. A combined listing for the physical item and the digital twin NET is then generated on a listing platform.

Abstract: Techniques are described, as implemented by computing devices, to control access to transactions through use of tokenized reputation scores. This is performed by leveraging a blockchain such that a tokenized reputation score is generated or calculated based on an amount of reputation tokens associated with a blockchain account address associated with a service provider account, and by making transactional functionality available to the service provider account based on a comparison of a tokenized reputation score affiliated with the service provider account with a threshold score associated with a transaction.

Abstract: Techniques are described, as implemented by computing devices, to control access to transactions through use of security deposits based on tokenized reputation scores. This is performed by leveraging a blockchain such that tokenized reputation scores are generated based on amounts of cryptographic reputation tokens associated with blockchain account addresses associated with service provider accounts. Access to transactional functionality is controlled for a service provider account by using an amount of cryptographic reputation tokens as a security deposit, where the security deposit is calculated based on a tokenized reputation score of the service provider account. Further, return of a security deposit is controlled for a service provider account based on a determination of a successful or unsuccessful completion of a transaction.

Abstract: Techniques are described, as implemented by computing devices, to control access to digital content through use of nonfungible tokens (NFTs). This is performed by leveraging a blockchain such that digital content associated with an item is made available to supplement use of the item (e.g., to supplement use of a physical item, digital content, and so forth) or make other functionality available based on a user's possession of the item.