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1. ϒϩοΫνΣʔϯ։ൃ Πϯλʔϯͷࢹ఺͔Β Hi-Ether #8
2. લ઒জ / DMM.com Πϯλʔϯ @arika_nashika ɾDMM >ϚΠχϯάϥϘνʔϜ >εϚʔτίϯτϥΫτνʔϜ Blockchainnͷߦ͘຤ʹܞΘ͍ͬͯ͘
3. DMMάϧʔϓ͕ ϒϩοΫνΣʔϯͰऔΓ૊ΜͰ͍Δ͜ͱ ϒϩοΫνΣʔϯ։ൃ ϚΠχϯά ҉߸௨՟औҾ
4. ࣗ෼͕΍͍ͬͯΔ͜ͱ ϒϩοΫνΣʔϯ։ൃ ϚΠχϯά ҉߸௨՟औҾॴ
7. εϚʔτίϯτϥΫτνʔϜ։ൃ߹॓ in ܰҪ୔ • 8/22 - 8/24ʹܰҪ୔ʹͯ։ൃ߹॓ • UXͷݕূ • ϑϩϯτΤϯυɺόοΫΤϯυɺίϯτϥΫτɹ ͷ݁߹
9. ࠓޙνʔϜͷօ͞Μͱௐ͍ࠪͨ͜͠ͱ • 99% Fault Tolerance • FFG Casper • EOS • Plasma
10. ࠓޙνʔϜͷօ͞Μͱௐ͍ࠪͨ͜͠ͱ • 99% Fault Tolerance Consensus • FFG Casper • EOS • Plasma • Tendermint
11. 99% Fault Tolerance Consensus • ઌ೔ɺvitalik͞Μ͕ But did you know that if you add even more assumptions, …, you can increase fault tolerance all the way to 99%?
12. 99% Fault Tolerance Consensus • Ұൠʹɺվ͟Μ଱ੑʹඞཁͳshare • ಉظωοτϫʔΫ • share: 50% • ඇಉظωοτϫʔΫ • share: 33%
13. 99% Fault Tolerance Consensus • “Add assumption” • Observer • not actively participating in the consensus • care about its output • to also be actively watching the consensus • not just downloading its output after the fact
14. • “ϒϩοΫνΣʔϯ͸ ࣗવݱ৅ Ͱ͋Δ”?