Secure smart note

A method, comprising:

• receiving, by a computer device, a financial asset of a user of the computer device from a ledger of the blockchain;
• storing, by the computer device, the financial asset and a value of the financial asset on the computer device for display by a display screen of the computer device;
• confirming, by the computer device, that a private key of the computer device has not been used;
• in response to the confirming, generating and displaying, by the computer device, a symbol indicating that the private key has not been used;
• executing, by the computer device, a transaction for a partial value of the financial asset;
• in response to the transaction, generating and displaying, by the computer device, a different symbol indicating that the private key has been used;
• transferring, by the computer device, the partial value of the financial asset to the blockchain using the private key, and
• in response to the transferring, generating, by the computer device, a new address on the computer device to store the remaining financial value and resetting, by the computer device, the status of the private key to an unused status.

A non-transitory computer readable medium comprising instructions that when executed by a processor cause the processor to perform:

• receiving a financial asset of a user of the computer device from a ledger of the blockchain;
• storing the financial asset and a value of the financial asset on the computer device for display by a display screen of the computer device;
• confirming that a private key of the computer device has not been used;
• in response to the confirming, generating and displaying a symbol indicating that the private key has not been used;
• executing a transaction for a partial value of the financial asset;
• in response to the transaction, generating and displaying a different symbol indicating that the private key has been used;
• transferring, by the computer device, the partial value of the financial asset to the blockchain using the private key, and
• in response to the transferring, generating a new address on the computer device to store the remaining financial value and resetting the status of the private key to an unused status.