Granted Patent B2

US 12,737,756 · App. 18/243,607 · Granted Sep 15, 2026

Inventors: Ying Chan (Cambridge, GB); Dean Kramer (London, GB)

Assignee: NCHAIN LICENSING AG

G06Q20/389G06F21/6209G06Q20/0658G06Q20/36G06Q20/3674G06Q20/3825G06Q20/3829H04L9/3236H04L9/3247G06Q2220/00H04L9/3066H04L9/50H04L2209/56

Abstract

Claims (18)

1 . A computer-implemented method for execution of a parametrized smart contract, the method comprising:

receiving, at a validation node in a blockchain network, an unlocking blockchain transaction to be validated, the unlocking blockchain transaction including a first unlocking script;

executing the first unlocking script to obtain data and a first set of field values of the unlocking blockchain transaction, the first set of field values including a second locking script of the unlocking blockchain transaction;

obtaining a previous blockchain transaction associated with the parameterized smart contract, the previous blockchain transaction including a first locking script;

executing the first locking script to cause the validation node to:

obtain a second set of field values of the previous blockchain transaction, the second set of field values including a copy of the first locking script;

determine that a termination condition is unfulfilled;

determine that the copy of the first locking script matches the second locking script of the unlocking blockchain transaction; and

validating the unlocking blockchain transaction based on said determination; and

propagating the validated unlocking blockchain transaction to one or more nodes of a blockchain network.

2 . The computer-implemented method of claim 1 , wherein the first locking script is further configured to impose a set of conditions for validating the unlocking blockchain transaction.

3 . The computer-implemented method of claim 1 , wherein the first locking script is configured to determine that the termination condition is unfulfilled if it is determined that an amount of a digital asset associated with the previous blockchain transaction is sufficient to reassociate at least a portion of the digital asset.

4 . The computer-implemented method of claim 1 , wherein the first locking script is configured to validate the unlocking blockchain transaction without verifying that an entity that created the unlocking transaction has access to secret information.

5 . The computer-implemented method of claim 1 , wherein the first locking script is further configured to verify, as a further condition for validating the unlocking transaction, that the unlocking transaction meets an additional constraint.

6 . A system, comprising:

a processor; and

memory including executable instructions that, as a result of execution by the processor, causes the system to perform the method of claim 1 .

7 . A non-transitory computer-readable storage medium having stored thereon executable instructions that, as a result of being executed by a processor of a computer system, cause the computer system to at least perform the method of claim 1 .

Assignments (7)

Priority Claims (6)

Continuity (2)

References Cited (145)