Patent SG-11201811007T-A (SG)
Title: Blockchain-implemented method and system
Inventor: VINCENT STEPHANE
IPC: G06Q30/06
Filed: 2017-07-21
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property C.--.` 1111111111111111111111111111111111111111111111111111111H1110111111011110111111 Organization International Bureau (10) International Publication Number 03 (43) International Publication Date ......P' WO 2018/020375 Al 01 February 2018 (01.02.2018) WI P0 I PC T (51) International Patent Classification: (72) Inventor: VINCENT, Stephane; c/o Urquhart-Dykes & G06Q 30/06 (2012.01) G06Q 20/06 (2012.01) Lord LLP, 7th Floor Churchill House, Churchill Way, (21) International Application Number: Cardiff CF10 2HH (GB). PCT/IB2017/054428 (81) Designated States (unless otherwise indicated, for every (22) International Filing Date: kind of national protection available): AE, AG, AL, AM, 21 July 2017 (21.07.2017) AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, (25) Filing Language: English DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, (26) Publication Language: English HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, (30) Priority Data: MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, 1613107.0 29 July 2016 (29.07.2016) GB OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, 1613106.2 29 July 2016 (29.07.2016) GB SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. (71) Applicant: NCHAIN HOLDINGS LIMITED [AG/AG]; Fitzgerald House, 44 Church Street, St. John's (AG). (84) Designated States (unless otherwise indicated, for every kind of regional protection available): ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, (54) Title: BLOCKCHAIN-IMPLEMENTED METHOD AND SYSTEM 108-Smart- phone ..... Server-102 . ..... . .. 110 - Car . ... . 104 IOT — ....... .... device 1106 BID L 100 1- 2 0 , 1 (57) : The computer-implemented ...°L + of an interne-enabled resource. The invention in be an IoT device or system. Access to the resource is permitted or enabled upon provision of a cryptographic key e.g. a private key M which corresponds to a public key which has been stored in memory. In one embodiment, the public key is stored in a DHT. Access © to the resource is prevented or disabled by C Transaction to spend a tokenised output of a first blockchain Transaction. The second transaction detokenizes the token (or 'coloured --.... coin') contained within the first Transaction. c)1: 1-1 m • ternet-enabled resource, wherein the message communicates a public key and the redeem script. The resource then checks whether C the public key in the message matches that stored ei Fig. la invention provides a method and corresponding system for controlling access to and/or use uses an electronic ledger such as, for example, the Bitcoin blockchain. The resource may removing the public key from memory, and using a redeem script of a second blockchain In order to prevent further access to the resource, an encrypted message is sent to the in memory and, if it does, removes the stored version of the public key from memory. O [Continued on next page] WO 2018/020375 Al MIDEDIMOMOIDEIREIDIONMOMMIIMEOMEHOM UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). Published: — with international search report (Art. 21(3)) The resource then uses the redeem script to perform the detokenization.