US 12,586,067 B2Granted

Duplicating smart contracts with termination condition

AssigneenChain Licensing AG

InventorsYing Chan, Dean Kramer

Life of this patent

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Abstract

The invention relates to distributed ledger technologies such as consensus-based blockchains. Computer-implemented methods for locking and unlocking blockchain transactions are described. The invention is implemented using a blockchain network. A first unlocking script of the unlocking blockchain transaction is configured to unlock a first locking script, wherein the first locking script is configured, when executed together with the first unlocking script, to determine, based on the first locking script and a constraint for verifying the unlocking blockchain transaction. Verifying the unlocking blockchain transaction is based on a set of constraints and corresponding field of the unlocking blockchain transaction, wherein data is based on the set of constraints. Providing data at the corresponding field of the unlocking blockchain transaction. Finally, making the unlocking blockchain transaction available to one or more nodes of a blockchain network.

Claims10

Dependent claims

A computer-implemented method for execution of a parameterized 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 a first set of field values of the unlocking blockchain transaction;
obtaining a previous blockchain transaction associated with the parameterized smart contract, the previous blockchain transaction including providing a first locking script;
executing the first locking script to cause the validation node to:
determine, based on the first locking script, a constraint for verifying the unlocking blockchain transaction;
and
verify the unlocking blockchain transaction based on the constraint and the first set of field values of the unlocking blockchain transaction;
validating the unlocking blockchain transaction based on the verification;
and
propagating the validated unlocking blockchain transaction to one or more nodes of the blockchain network.

7 more elements

Dependencies are inferred from the claim text.

Facts

Application: 18/243,616Filed 7 Sep 2023 · continuation
Priority: GB 170818522 May 2017
Published: US 2023/0419319 A128 Dec 2023
Granted: 24 Mar 2026
Term ends: Not estimatedThe source records don’t support an estimate.

Classification26 codes

G06F 21/64
Protecting data: protecting data integrity, e.g. using checksums, certificates or signatures
G06Q 20/389
Payment protocols; Details thereof: keeping log of transactions for guaranteeing non-repudiation of a transaction
G06F 16/2379
Updating: updates performed during online database operations; commit processing
G06F 21/6209
Protecting access to data via a platform, e.g. using keys or access control rules: to a single file or object, e.g. in a secure envelope,…

Family

PCT/IB2018/053338Parent of this continuation · filed 14 May 2018
US 2023/0419319 A1Pre-grant publication · published 28 Dec 2023
Application16/616,278Parent of this continuation
US 11,810,018 B2Parent of this continuation
US 2020/0143339 A1Published application
US 12,586,067 B2This patent

From the US filing history. Foreign family members aren’t listed.