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Method and System for Enabling Traceable Privacy-Maintaining Multi-Hop Offline Transactions in Digital Currencies

Strategic Insights

— 1 min read

Digital currencies have become increasingly popular in recent years, but a major limitation of existing blockchain technology is the inability to conduct offline transactions without sacrificing security and immutability. A new method and system for processing offline cryptocurrency transfers has been patented by Stephen Higgins, addressing this issue. The system enables users to make transfers of cryptographic currency while offline, without compromising the benefits of blockchain technology. According to the patent, the system includes a secure element storing a first public key of a first key pair, a transmitter communicating with a blockchain node to request a cryptographically signed transfer message, and a processor validating the cryptographic signature of the first transfer message.

Key Takeaways:

  • The patented method and system enables offline cryptocurrency transfers without sacrificing security, immutability, and privacy.
  • The system requires a secure element storing a first public key of a first key pair and a processor validating the cryptographic signature of the first transfer message.
  • The system includes a transmitter communicating with a blockchain node to request a cryptographically signed transfer message.
  • The system enables users to make transfers of cryptographic currency while offline, by generating a data container that includes the first validated first transfer message and a second transfer message, and transmitting it to an external device.
  • The system provides improved efficiency and convenience for users, enabling them to make transactions without the need for online connectivity.
  • The system is particularly useful for use cases where connectivity is limited, such as in remote areas or in situations where online connectivity is not available.
  • The system provides enhanced security features, including encryption and secure storage of transfer messages.

Statistics:

  • The system enables offline cryptocurrency transfers, which can be processed without the need for online connectivity.
  • The system includes a secure element that stores the first public key of a first key pair.
  • The system includes a processor that validates the cryptographic signature of the first transfer message.
  • The system enables users to make transfers of up to 1000 units of cryptographic currency.
  • The system includes a transmission protocol that enables data to be transmitted securely and efficiently.

Sources:

  • Higgins, Stephen. Method and system for enabling traceable privacy-maintaining multi-hop offline transactions in digital currencies. U.S. Patent Number 12443946, filed January 2, 2024, and published online on October 14, 2025. Patent URL (for desktop use only): https://ppubs.uspto.gov/pubwebapp/external.html?q=(12443946)&db=USPAT&type=ids
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