Patent SG-11201806781S-A (SG)
Title: Registry and automated management method for blockchain-enforced smart contracts
Inventor: WRIGHT CRAIG STEVEN
IPC: H04L9/00
Filed: 2017-02-16
Abstract: Fig4 . ' -a q6 41 4 , ,!..`-`\" 100. Create) Contract Blockchain (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (10) International Publication Number (43) International Publication Date WO 2017/145019 Al 31 August 2017 (31.08.2017) WIPO I PCT 1111111111111101110111111111110101111101110101111111111111110111110111111111110111111 W O 20 17 / 145 0 19 Al ( 200. Checl Con ract (51) International Patent Classification: H04L 9/00 (2006.01) GO6Q 20/36 (2012.01) G06Q 30/06 (2012.01) (21) International Application Number: PCT/IB2017/050865 (22) International Filing Date: 16 February 2017 (16.02.2017) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 1603123.9 23 February 2016 (23.02.2016) GB 1603125.4 23 February 2016 (23.02.2016) GB 1603117.1 23 February 2016 (23.02.2016) GB 1603114.8 23 February 2016 (23.02.2016) GB 1605571.7 1 April 2016 (01.04.2016) GB 1619301.3 15 November 2016 (15.11.2016) GB (71) Applicant: NCHAIN HOLDINGS LIMITED [AG/AG]; Fitzgerald House, 44 Church Street, St. John's (AG). (72) Inventors: WRIGHT, Craig Steven; c/o Urquhart-Dykes & Lord LLP, 7th Floor Churchill House, Churchill Way, Cardiff CF10 2HH (GB). SAVANAH, Stephane; c/o Ur- quhart-Dykes & Lord LLP, 7th Floor Churchill House, Churchill Way, Cardiff CF10 2HH (GB). (74) Agent: JONES, Cerian; 7th Floor, Churchill House, Churchill Way, Cardiff CF10 2HH (GB). (81) Designated States (unless otherwise indicated, for every kind of national protection available): AE, AG, AL, AM, 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, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, 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. (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, 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)) = (54) Title: REGISTRY AND AUTOMATED MANAGEMENT METHOD FOR BLOCKCHAIN-ENFORCED SMART CON- TRACTS Repository ( 300. Close) Contract Interested Contract Issuer Contract Party Counterparty (57) : The invention relates to the fields of tokenisation, blockchain and smart contract technologies. It provides a technical arrangement which simplifies the automated management of contracts. The invention comprises a method and system which use a computer-based repository for storage of the contract. The contract is then represented by a transaction on the blockchain. Metadata within the transaction's script includes a hash of the contract and a means of identifying its location within the repository. The trans - action also includes an unspent output (UTXO) which indicates its status as an open (ie not terminated) contract. The contract is ter - minated by spending the output at a later point in time, for example, using n Lock Time + Check Lock Time Verify (CLTV). By combining this concept with other techniques and computing components, the invention can provide a powerful mechanism for im- plementing various tasks such as renewing or rolling over the contract, or dividing it into sub-contracts or conditions. Furthermore, as the status and existence of the contract is evidence via the blockchain, this provides a permanent, publicly visible and non-alter - able record of the contract.