Secure and scalable blockchain smart contract-based digital asset platform

A computing apparatus comprising:

• a processor;
• and
• a memory storing instructions that, when executed by the processor, configure the apparatus to:
• provide a digital storefront platform for the NFTs, wherein the NFTs include smart contract-based digital assets,
• the digital storefront platform includes:
• a mint module configured to create and mint NFTs on blockchains;
• a trade module configured to transact with the minted NFTs;
• a key cycler configured to allow parallel transactions with blockchains, payment processors, the mint module, and the trade module, the key cycler including:
• a key cycler controller for executing actions within the key cycler and facilitating the parallel transactions including at least one of blockchains, payment processors, the mint module, and the trade module;
• a plurality of private keys on a web-based key management service (KMS);
• indices of the plurality of private keys;
• and
• a database include the indices and a status of each private key of the plurality of private keys, wherein the status includes available or unavailable;
• receive a request from a user to create and mint at least one new NFT on a blockchain, using the mint module;
• create and mint the at least one new NFT;
• list for sale, using the trade module, the minted at least one new NFT on the digital storefront platform;
• transact between a buyer and a seller, with the minted at least one new NFTs including performing the parallel transaction, the transacting including:
• receive a transaction request signal from the buyer or the seller;
• send an available key query signal, by the key cycler controller to the database, to identify at least one private key with the status of available;
• receive by the key cycler controller a key availability signal from the database, wherein the key availability signal includes availability by the indices of the private keys;
• on condition there are no private keys with the status of available:
• wait until at least one private key has the status of available, on a web based key management service;
• and
• use the key cycler and the available more than one private keys to simultaneously process a currency transfer from the buyer for the NFT with a payment processor, and a transfer of ownership, from the seller, of the NFT on the blockchain.

A non-transitory computer-readable storage medium, the computer-readable storage medium including instructions that when executed by a computer, cause the computer to:

• provide a digital storefront platform for the NFTs, wherein the NFTs include smart contract-based digital assets,
• the digital storefront platform including:
• a mint module configured to create and mint NFTs on blockchains;
• a trade module configured to transact with the minted NFTs;
• a key cycler configured to allow parallel transactions with blockchains, payment processors, the mint module, and the trade module, the key cycler including:
• a key cycler controller for executing actions within the key cycler and facilitating the parallel transactions including at least one of blockchains, payment processors, the mint module, and the trade module;
• a plurality of private keys on a web-based key management service (KMS);
• indices of the plurality of private keys;
• and
• a database include the indices and a status of each private key of the plurality of private keys, wherein the status includes available or unavailable;
• receive a request from a user to create and mint at least one new NFT on a blockchain, using the mint module;
• create and mint the at least one new NFT;
• list for sale, using the trade module, the minted at least one new NFT on the digital storefront platform;
• transact between a buyer and a seller, with the minted at least one new NFTs including performing the parallel transaction, the transacting including:
• receive a transaction request signal from the buyer or the seller;
• send an available key query signal, by the key cycler controller to the database, to identify at least one private key with the status of available;
• receive by the key cycler controller a key availability signal from the database, wherein the key availability signal includes availability by the indices of the private keys;
• on condition there are no private keys with the status of available:
• wait until at least one private key has the status of available, on a web based key management service;
• and
• use the key cycler and the available more than one private keys to simultaneously process a currency transfer from the buyer for the NFT with a payment processor, and a transfer of ownership, from the seller, of the NFT on the blockchain.