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1. (WO2017149388) SYSTEMS AND METHODS FOR PROVIDING BLOCK CHAIN STATE PROOFS FOR PREDICTION MARKET RESOLUTION

Pub. No.:    WO/2017/149388    International Application No.:    PCT/IB2017/000258
Publication Date: Sat Sep 09 01:59:59 CEST 2017 International Filing Date: Tue Mar 07 00:59:59 CET 2017
IPC: G06Q 30/00
Applicants: FORECAST FOUNDATION OU
Inventors: KRUG, Joseph
Title: SYSTEMS AND METHODS FOR PROVIDING BLOCK CHAIN STATE PROOFS FOR PREDICTION MARKET RESOLUTION
Abstract:
An outcome reported by a first prediction market can be determined. A state root hash from a given block in a block chain created during or after a resolution process of the first prediction market can be obtained. A proof that the value of an outcome obtained from the block chain is the same as reported by the first prediction market can be determined by: identifying a set of nodes within a cryptographic structure that forms a path from a top node to an outcome node containing a value of the outcome; and hashing the outcome node with any adjacent nodes and intervening nodes until a hash of the top node is obtained. Responsive to the hash of the top node matching the state root hash, the proof can be submitted to a second prediction market to resolve the second prediction market.