| Presentation | 2021-03-05 Experimental performance evaluation on avoidance of blockchain oracle problem using collective intelligence Yutaka Kato, Akihiro Fujihara, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Bitcoin-type blockchains have a problem called oracle problem, where blockchains themselves cannot prove the authenticity of external data, and must rely on single external source of information. In this study, we examine how to utilize collective intelligence as a workaround for this problem. We propose a method for multiple verification of equivalent information sent by multiple nodes using the principle of majority voting to sift out the truth of the information. By implementing the proposed method, we also conducted a performance evaluation experiment assuming a scenario of sending erroneous information, such as a sensor failure, in some IoT nodes. As a result, we confirmed that when 45% or less IoT nodes send the erroneous information, it can be automatically eliminated with almost 100% probability. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Blockchain / Oracle / Collective intelligence / IoT |
| Paper # | IN2020-74 |
| Date of Issue | 2021-02-25 (IN) |
| Conference Information | |
| Committee | IN / NS |
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| Conference Date | 2021/3/4(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | General |
| Chair | Kenji Ishida(Hiroshima City Univ.) / Akihiro Nakao(Univ. of Tokyo) |
| Vice Chair | Kunio Hato(Internet Multifeed) / Tetsuya Oishi(NTT) |
| Secretary | Kunio Hato(Hiroshima City Univ.) / Tetsuya Oishi(KDDI Research) |
| Assistant | / Shinya Kawano(NTT) |
| Paper Information | |
| Registration To | Technical Committee on Information Networks / Technical Committee on Network Systems |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Experimental performance evaluation on avoidance of blockchain oracle problem using collective intelligence |
| Sub Title (in English) | |
| Keyword(1) | Blockchain |
| Keyword(2) | Oracle |
| Keyword(3) | Collective intelligence |
| Keyword(4) | IoT |
| 1st Author's Name | Yutaka Kato |
| 1st Author's Affiliation | Chiba Institute of Technology(CIT) |
| 2nd Author's Name | Akihiro Fujihara |
| 2nd Author's Affiliation | Chiba Institute of Technology(CIT) |
| Date | 2021-03-05 |
| Paper # | IN2020-74 |
| Volume (vol) | vol.120 |
| Number (no) | IN-414 |
| Page | pp.pp.120-125(IN), |
| #Pages | 6 |
| Date of Issue | 2021-02-25 (IN) |