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1. (WO2018013259) METHOD AND SYSTEM FOR PARTITIONED BLOCKCHAINS AND ENHANCED PRIVACY FOR PERMISSIONED BLOCKCHAINS

Pub. No.:    WO/2018/013259    International Application No.:    PCT/US2017/036239
Publication Date: Fri Jan 19 00:59:59 CET 2018 International Filing Date: Thu Jun 08 01:59:59 CEST 2017
IPC: H04L 9/32
H04L 29/06
Applicants: MASTERCARD INTERNATIONAL INCORPORATED
Inventors: DAVIS, Steven, Charles
Title: METHOD AND SYSTEM FOR PARTITIONED BLOCKCHAINS AND ENHANCED PRIVACY FOR PERMISSIONED BLOCKCHAINS
Abstract:
A method for generation of blocks for a partitioned blockchain includes: storing blocks comprising a partitioned blockchain, wherein each block includes a header and transaction entries; receiving transaction data entries for each of a plurality of subnets; generating a hash value of the header included in the most recently added block; generating a new block header, the new block header including the generated hash value, a timestamp, and a sequence of pairs including a pair for each of the plurality of subnets, each pair including a subnet identifier associated with the respective subnet and a merkle root of each of the transaction data entries received for the respective subnet; generating a new block, the new block including the generated new block header and the transaction data entries for each of the plurality of subnets; and transmitting the new block to a plurality of nodes associated with the partitioned blockchain.