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1. (WO2018197491) METHOD AND SYSTEM FOR SETTLING A BLOCKCHAIN TRANSACTION

Pub. No.:    WO/2018/197491    International Application No.:    PCT/EP2018/060476
Publication Date: Fri Nov 02 00:59:59 CET 2018 International Filing Date: Wed Apr 25 01:59:59 CEST 2018
IPC: G06Q 20/02
G06Q 20/06
Applicants: BLOCKSETTLE AB
Inventors: MILLAR, Scott
JANSSON, Albert
FATHPOUR PAKZAD, Farhod
Title: METHOD AND SYSTEM FOR SETTLING A BLOCKCHAIN TRANSACTION
Abstract:
Method for settling a transaction concerning an asset and being registered by forming part of a blockchain-based ledger (L) for said asset, which ledger (L) is arranged to keep track of transactions concerning the asset in question from senders to specified asset addresses (A), which transactions are signed using a private cryptographic key belonging to the sender in question. The method is characterised in that the method comprises the steps a central server identifying a seller (200), being associated with a seller address, and a buyer (300), being associated with a buyer address, of the said asset, at a specified price, and the central server producing a transaction identifier; calculating, based upon the seller address or corresponding public key, the buyer address or corresponding public key, and the transaction identifier, a M-of-N multi-signature address capable of being activated by a respective private key of both the seller (200) and the buyer (300), which respective private key corresponds to said respective public key, wherein M