Data processing: financial – business practice – management – or co – Business processing using cryptography – Secure transaction
Reexamination Certificate
2007-05-29
2007-05-29
Worjloh, Jalatee (Department: 3621)
Data processing: financial, business practice, management, or co
Business processing using cryptography
Secure transaction
C726S026000, C705S051000, C705S057000, C705S059000, C705S065000, C380S200000, C380S201000, C380S202000, C380S203000
Reexamination Certificate
active
10718942
ABSTRACT:
Techniques are disclosed for writing data directly onto a product to record each ownership transfer. As a result, the product itself now carries a traceable, auditable, non-forgeable, non-repudiable proof of ownership (and, optionally, ownership history) that can be used in a variety of ways. This recorded ownership transfer information provides an electronic receipt, which may be used by the present owner to prove his or her ownership. (Optionally, other types of transfers may be recorded in addition to, or instead of, ownership transfers.) A transfer agent or registrar creates a unique transaction identifier to represent the transfer, and preferably creates a cryptographic signature over fields representing the transfer. This information is then recorded in a repository that is external from the product.
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Hind John R.
Stockton Marcia L.
Doubet Marcia L.
International Business Machines - Corporation
Ray-Yarletts Jeanine S.
Worjloh Jalatee
LandOfFree
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