(19)

(11)

EP 4 200 780 A1

(12)

(43) Date of publication: 28.06.2023 Bulletin 2023/26 (21) Application number: 21859060.2 (22) Date of filing: 18.08.2021

(51) International Patent Classification (IPC):  G06Q 20/36(2012.01) (52) Cooperative Patent Classification (CPC): H04L 9/50; H04L 9/3247 (86) International application number: PCT/US2021/046506 (87) International publication number: WO 2022/040315 (24.02.2022 Gazette 2022/08)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 19.08.2020 US 202063067533 P 26.05.2021 US 202117331114 (71) Applicant: Coinbase, Inc. Oakland, CA 94607 (US)	(72) Inventor: KIM, Peter, Jihoon San Francisco, California 94111 (US) (74) Representative: Boult Wade Tennant LLP  Salisbury Square House 8 Salisbury Square London EC4Y 8AP London EC4Y 8AP (GB)