The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 04, 2025
Filed:
Jan. 30, 2020
Nchain Licensing Ag, Zug, CH;
Craig Steven Wright, Cardiff, GB;
Jack Owen Davies, Cardiff, GB;
Alexander Tennyson Mackay, Cardiff, GB;
nChain Licensing AG, Zug, CH;
Abstract
The invention provides improved Simplified Payment Verification (SPV) solutions for blockchain-implemented transfers. It is suited for, but not limited to, implementation in one or more SPV wallets, or on smart cards etc. In accordance with one embodiment, a method, system or resource(s) is provided which enables Alice to transfer an asset to Bob. Bob sends Alice a payment transaction template (template Tx) and requests: the full transaction data for all input transactions (Tx, Tx) comprising at least one output that Alice wants to spend as inputs to a transfer (Tx); the Merkle path for all input transactions (Tx, Tx) linking them to their respective Merkle roots associated with their respective block headers; the completed transfer transaction (Tx). Alice provides this information plus her signature and optionally a change address. Bob can then perform local SPV checks on the input transactions Tx, Txusing transactions Txand Tx, their corresponding Merkle paths Path, Path, and Bob's local list of block headers. Bob broadcasts the transfer transaction (Tx) to the P2P network.