METHODS, SYSTEMS, AND DEVICES FOR CONCEALING ACCOUNT BALANCES IN LEDGERS

WIPO Patent Application WO/2020/096996

A3

Disclosed herein are methods, systems, and devices for concealing account balances of permissionless distributed ledgers using multi-chain and/or directed acyclic graph (DAG) based structures, while maintaining publicly verifiable transactions. According to one embodiment, a computer-based method for recording a transaction in a ledger having a transacted amount, a first account balance associated with a sender and a second account balance associated with a receiver is disclosed. The computer-based method includes encrypting the transacted amount using a first shared key, decreasing the first account balance by the transacted amount, encrypting the first account balance with a first private key, increasing the second account balance by the transacted amount, encrypting the second account balance with a second private key. Additionally the ledger is configured for tracking the first account balance and the second account balance in at least one of a multi-chain structure or a directed acyclic graph (DAG) based structure, concealing the first account balance and the second account balance, and allowing public verification of the transaction over a network.

MAKRIDES FRANK (US)

PCT/US2019/059738

July 30, 2020

November 05, 2019

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TUNNEL INT INC (US)

G06Q20/38; G06Q20/36; G06Q20/40; G06Q40/04

US20180315027A1	2018-11-01
US20160260169A1	2016-09-08
US20170295023A1	2017-10-12
US9374370B1	2016-06-21
US20120296829A1	2012-11-22
US20100332397A1	2010-12-30
US20140279540A1	2014-09-18

EVANS, Gregory M. (US)

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