{"language":[{"iso":"eng"}],"publication_identifier":{"eisbn":["9781538622445"]},"type":"conference","extern":"1","date_updated":"2021-01-12T08:17:57Z","article_number":"7966966","oa_version":"None","abstract":[{"text":"Permissionless blockchain-based cryptocurrencies commonly use proof-of-work (PoW) or proof-of-stake (PoS) to ensure their security, e.g. to prevent double spending attacks. However, both approaches have disadvantages: PoW leads to massive amounts of wasted electricity and re-centralization, whereas major stakeholders in PoS might be able to create a monopoly. In this work, we propose proof-of-personhood (PoP), a mechanism that binds physical entities to virtual identities in a way that enables accountability while preserving anonymity. Afterwards we introduce PoPCoin, a new cryptocurrency, whose consensus mechanism leverages PoP to eliminate the dis-advantages of PoW and PoS while ensuring security. PoPCoin leads to a continuously fair and democratic wealth creation process which paves the way for an experimental basic income infrastructure.","lang":"eng"}],"publication_status":"published","publication":"2017 IEEE European Symposium on Security and Privacy Workshops","title":"Proof-of-personhood: Redemocratizing permissionless cryptocurrencies","quality_controlled":"1","doi":"10.1109/eurospw.2017.46","conference":{"end_date":"2017-04-28","start_date":"2017-04-26","location":"Paris, France","name":"EuroS&PW: European Symposium on Security and Privacy Workshops"},"author":[{"full_name":"Borge, Maria","first_name":"Maria","last_name":"Borge"},{"full_name":"Kokoris Kogias, Eleftherios","first_name":"Eleftherios","id":"f5983044-d7ef-11ea-ac6d-fd1430a26d30","last_name":"Kokoris Kogias"},{"last_name":"Jovanovic","full_name":"Jovanovic, Philipp","first_name":"Philipp"},{"first_name":"Linus","full_name":"Gasser, Linus","last_name":"Gasser"},{"last_name":"Gailly","first_name":"Nicolas","full_name":"Gailly, Nicolas"},{"first_name":"Bryan","full_name":"Ford, Bryan","last_name":"Ford"}],"_id":"8299","date_created":"2020-08-26T11:48:11Z","month":"06","citation":{"ama":"Borge M, Kokoris Kogias E, Jovanovic P, Gasser L, Gailly N, Ford B. Proof-of-personhood: Redemocratizing permissionless cryptocurrencies. In: <i>2017 IEEE European Symposium on Security and Privacy Workshops</i>. IEEE; 2017. doi:<a href=\"https://doi.org/10.1109/eurospw.2017.46\">10.1109/eurospw.2017.46</a>","mla":"Borge, Maria, et al. “Proof-of-Personhood: Redemocratizing Permissionless Cryptocurrencies.” <i>2017 IEEE European Symposium on Security and Privacy Workshops</i>, 7966966, IEEE, 2017, doi:<a href=\"https://doi.org/10.1109/eurospw.2017.46\">10.1109/eurospw.2017.46</a>.","short":"M. Borge, E. Kokoris Kogias, P. Jovanovic, L. Gasser, N. Gailly, B. Ford, in:, 2017 IEEE European Symposium on Security and Privacy Workshops, IEEE, 2017.","ieee":"M. Borge, E. Kokoris Kogias, P. Jovanovic, L. Gasser, N. Gailly, and B. Ford, “Proof-of-personhood: Redemocratizing permissionless cryptocurrencies,” in <i>2017 IEEE European Symposium on Security and Privacy Workshops</i>, Paris, France, 2017.","ista":"Borge M, Kokoris Kogias E, Jovanovic P, Gasser L, Gailly N, Ford B. 2017. Proof-of-personhood: Redemocratizing permissionless cryptocurrencies. 2017 IEEE European Symposium on Security and Privacy Workshops. EuroS&#38;PW: European Symposium on Security and Privacy Workshops, 7966966.","chicago":"Borge, Maria, Eleftherios Kokoris Kogias, Philipp Jovanovic, Linus Gasser, Nicolas Gailly, and Bryan Ford. “Proof-of-Personhood: Redemocratizing Permissionless Cryptocurrencies.” In <i>2017 IEEE European Symposium on Security and Privacy Workshops</i>. IEEE, 2017. <a href=\"https://doi.org/10.1109/eurospw.2017.46\">https://doi.org/10.1109/eurospw.2017.46</a>.","apa":"Borge, M., Kokoris Kogias, E., Jovanovic, P., Gasser, L., Gailly, N., &#38; Ford, B. (2017). Proof-of-personhood: Redemocratizing permissionless cryptocurrencies. In <i>2017 IEEE European Symposium on Security and Privacy Workshops</i>. Paris, France: IEEE. <a href=\"https://doi.org/10.1109/eurospw.2017.46\">https://doi.org/10.1109/eurospw.2017.46</a>"},"article_processing_charge":"No","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","date_published":"2017-06-30T00:00:00Z","day":"30","publisher":"IEEE","status":"public","year":"2017"}