Fair and Decentralized Exchange of Digital Goods

• URL: http://arxiv.org/abs/2002.09689v1
• Date: Sat, 22 Feb 2020 11:32:16 GMT
• Title: Fair and Decentralized Exchange of Digital Goods
• Authors: Ariel Futoransky, Carlos Sarraute, Daniel Fernandez, Matias Travizano, Ariel Waissbein
• Abstract summary: We construct a privacy-preserving, distributed and decentralized marketplace where parties can exchange data for tokens. In this market, buyers and sellers make transactions in a blockchain and interact with a third party, called notary, who has the ability to vouch for the authenticity and integrity of the data. We introduce a protocol for the data-token exchange where neither party gains more information than what it is paying for, and the exchange is fair.
• Score: 0.40777876591043144
• License: http://creativecommons.org/licenses/by-nc-sa/4.0/
• Abstract: We construct a privacy-preserving, distributed and decentralized marketplace where parties can exchange data for tokens. In this market, buyers and sellers make transactions in a blockchain and interact with a third party, called notary, who has the ability to vouch for the authenticity and integrity of the data. We introduce a protocol for the data-token exchange where neither party gains more information than what it is paying for, and the exchange is fair: either both parties gets the other's item or neither does. No third party involvement is required after setup, and no dispute resolution is needed.

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